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Chung Yill Park 50 Articles
The Problem Drinking and Related Factors in Female Firefighters
Seung Won Yoo, Kyoo Sang Kim, Chung Yill Park, Min Gi Kim
Korean Journal of Occupational and Environmental Medicine 2012;24(2):124-132.   Published online June 30, 2012
DOI: https://doi.org/10.35371/kjoem.2012.24.2.124
AbstractAbstract PDF
OBJECTIVES
This study was conducted to investigate problem drinking and analyze factors associated with alcohol use among female firefighters, as well as to provide useful data for management of alcohol use by female firefighters.
METHODS
The study includeed 1,587 female firefighters from throught Koea. Data were collected from June to July in 2008 using self-administered questionnaires including a general questionnaire, work related questionnaire, the Alcohol Use Disorders Identification Test (AUDIT), the Korean Occupational Stress Scale Short Form (KOSS-26), and the Center for Epidemiologic Studies Depression Scale (CESD). Among 1,263 female firefighters (75.6%) surveyed, the results of 1,084 qualified questionnaires (70.5%) were analyzed using the chi-square test, Fisher's exact test, and multiple logistic regression.
RESULTS
The prevalence of problem drinking (AUDIT score > or =8) in female firefighters was 12.5%. Multiple logistic analysis showed that being single, smoking and depression were correlated with problem drinking. Single female firefighter, present smokers and individuals positive for symptoms of depression had OR values of 2.11, 17.58 and 1.76, respectively.
CONCLUSIONS
Three factors were found to influnce the occurrence of problem drinking. Accordingly, smoking related education, counseling to cope effectively with depression and health promotion programs that consider psychological effects of job stress are needed to reduce work related factors that lead to problem drinking by female firefighters.

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The Reliability and Validity of the Negative Acts Questionnaire-Revised (NAQ-R) for Nurses for the Assessment of Workplace Bullying
Woong Nam, Ji Won Kim, Yong Kyu Kim, Jung Wan Koo, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 2010;22(2):129-139.   Published online June 30, 2010
DOI: https://doi.org/10.35371/kjoem.2010.22.2.129
AbstractAbstract PDF
OBJECTIVE: This study was conducted to assess the reliability, the validity, the psychological characteristics, and the internal structure of the Negative Acts Questionnaire-Revised (NAQ-R) for nurses for the assessment of the workplace bullying.
METHODS
A total of 190 female nurses who worked in a university hospital and who had participated in an annual health surveillance program were recruited into the study. A structured questionnaire was used to evaluate each participant's workplace bullying, job stress, and psychosocial wellbeing. Workplace bullying was assessed using the negative acts questionnaire-revised (NAQ-R), job stress was assessed using the Korean Occupational Stress Scale-Short Form (KOSS-SF) and psychosocial wellbeing was assessed using the Psychosocial Wellbeing Index-Short Form (PWI-SF). Resulting answers from the questionnaires were analyzed by chi-square, ANOVA, correlation analysis, and factor analysis.
RESULTS
Victims of workplace bullying of nurses in a hospital is 37(19%) based on operational bullying criteria. The Cronbach's alpha for the negative acts questionnaire-revised (NAQ-R) is 0.9260. By exploratory factor analysis, we conclude that 3 factor are most relevant. Criterion validity was satisfied with that a negative acts questionnaire-Revised (NAQ-R) resulting in a statistically significant and positive relationship with PWI-SF , construct validity was satisfied with that NAQ-R has statistically significant and high positive correlation with the occupational climate of the KOSS results.
CONCLUSIONS
The negative acts questionnaire-revised (NAQ-R) is a reliable and valid tool for the assessment of workplace bullying in the hospital nurse. By using this tool, we can imply the prevalence of and the condition of workplace bullying among the nurse.

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    Ji-Young Lim, Geun-Myun Kim, Eun-Joo Kim
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  • Validity and Reliability of the Korean Version of the Cyberbullying Scale for Newly Graduated Nurses
    Eun-Young Kim, Na-Ri Kim
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    Seong-Ryeol Bae, Hyon-Joo Hong, Jin-Joo Chang, Sung-Hee Shin
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  • Influence of Resilience and Workplace Bullying on Depression of Hospital Nurses
    Suniy Jeon, Moonhee Gang
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    Eun‐Young Doo, Miyoung Kim
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    Kyoung-Ja Kim
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    Ryan P. Jacobson, Jacqueline N. Hood, Kathryn J. L. Jacobson
    Ethics & Behavior.2017; 27(7): 527.     CrossRef
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    Jiyeon Kang, Jeung-Im Kim, Seonyoung Yun
    Journal of Korean Academy of Nursing.2017; 47(5): 689.     CrossRef
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    Dena Evans
    Journal of Nursing Scholarship.2017; 49(2): 214.     CrossRef
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    Myeongjun Lee, Hyunjung Kim, Donghee Shin, Sangyun Lee
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    Chung Hee Woo, Ju Young Park, Nam Yi Kim
    Journal of Korean Academy of Psychiatric and Mental Health Nursing.2016; 25(3): 187.     CrossRef
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    Hyunjin Oh, Dong-choon Uhm, Young Joo Yoon
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  • Relationship between Organizational Culture and Workplace Bullying among Korean Nurses
    Yuseon An, Jiyeon Kang
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    Hyunjin Oh, Dong Choon Uhm, Young Joo Yoon
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    Christina Karatza, Sofia Zyga, Styliani Tziaferi, Panagiotis Prezerakos
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    Seonyoung Yun, Jiyeon Kang
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  • Relationships of Workplace Bullying to Self-esteem and Turnover Intention among Clinical Nurses at Small and Medium-sized Hospitals
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The Relationship between Job Stress and Liver Dysfunction among Male White-Collar Workers
Jung Yeon Hong, Hyoung Ryoul Kim, Bo Ram Lee, Yong Kyu Kim, Jung Wan Koo, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 2009;21(2):165-173.   Published online June 30, 2009
DOI: https://doi.org/10.35371/kjoem.2009.21.2.165
AbstractAbstract PDF
OBJECTIVES
We wanted to investigate the relationship between job stress and liver dysfunction in Korean male white collar workers.
METHODS
A total of 700 male white collar workers who worked at one electronic institute and who participated in an annual surveillance program were recruited: 664(94.9%) workers were initially recruited and the data for 36 workers was excluded due to poor responses and a past history of liver disease. The questionnaire survey included the participants' general characteristics, the job-related factors, the health-related behaviors and job stress. Job stress was assessed using the Korean Occupational Stress Scale-Short Form (KOSS-SF). We merged the job stress data with the individual liver function results by conducting annual surveillance. Multiple logistic regression analysis with adjusting it for the confounding variables, including alcohol drinking and the body mass index (BMI), was used to evaluate the relationship between job stress and liver dysfunction.
RESULTS
After adjustment for the confounding variables, the proportion of liver dysfunction cases was significantly higher in the groups with a high level of job stress, as assessed by the 'job demands and total score'. After conducting a stratified analysis with considering alcohol drinking and the BMI, the prevalence odds ratio of liver dysfunction was higher in the groups with a high level of job stress, as assessed by the 'job demands and total score'.
CONCLUSIONS
The results of this study suggest that the level of job stress (and especially that assessed by the job demands and total score) is related to liver dysfunction. Thus, further preventive efforts and studies are needed to reduce job stress and address liver dysfunction.

Citations

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  • The Relationship between Job Stress and Organizational Effectiveness for Office Workers
    Yoo-Mi Chae, Jeong-bae Rhie, Sook Lee
    Journal of the Korea Academia-Industrial cooperation Society.2016; 17(7): 389.     CrossRef
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The Relation between Employees' Lifestyle and Their Health Status in an Electronics Research and Development Company
Jun Pyo Myong, Hyoung Ryoul Kim, Won Seon Choi, Seong Eun Jo, Boram Lee, Jung Wan Koo, Kang Sook Lee, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 2009;21(1):1-9.   Published online March 31, 2009
DOI: https://doi.org/10.35371/kjoem.2009.21.1.1
AbstractAbstract PDF
BACKGROUND
An unhealthy lifestyle is the most important cause of lifestyle-induced illness (diabetes, hypertension, liver enzyme abnormality, dyslipidemia etc.). This study was carried out to evaluate that relation between employees' lifestyle and their health status in a Korean electronic research and development company.
METHODS
We conducted a descriptive cross-sectional survey. 3,041 consecutive workers in a Korean R&D company were enrolled in this study. A checkup list for the health examination (from the National Health Insurance Coperation), which contained the information on the lifestyle, and the results of the health examination, which contained information on the body mass index (BMI), systolic blood pressure (SBP), and diastolic blood pressure (DBP), and liver function tests (LFT, AST, ALT, gamma-GTP) and cholesterol profiles (total cholesterol, TG, HDL, LDL) were done for all the subjects. We evaluated the health profile as normal or abnormal. Statistical analysis of the health profiles and the lifestyle of the employees' was performing by using multiple logistic regression analysis.
RESULTS
The prevalence of 'excessive alcohol drinking' was 52.9% (n=1,610), that for 'lack of exercise' was 86.2% (n=2,662), that for 'meat eating' 12.2% (n=370) and that for 'current smoker' was 31.3% (n=952). According to results of health examination, the prevalence of obesity was 27.1% (n=824), hypertension was 7.1% (n=215), diabetes was 1.0% (n=30), abnormal LFT was 15.4% (n=469) and dyslipidemia was 18.7% (n=569). On multiple logistic regression analysis of the health profile and lifestyle, 'meat eating' was related to obesity, hypertension, abnormal LFT (ALT, gamma-GTP), dyslipidemia (LDL). 'Excessive alcohol drinking' was related to obesity, hypertension, abnormal LFT (gamma-GTP). 'Lack of exercise' was related to dyslipidemia (HDL). 'Current smoker' was related to obesity, diabetes, abnormal LFT (ALT, gamma-GTP), and dyslipidemia (TG, HDL) with statistically significance.
CONCLUSIONS
For workers in the R&D company, an unhealthy lifestyle (such as diet, alcohol drinking, lack of exercise and smoking) were related to obesity, hypertension, diabetes, abnormal LFT and dyslipidemia. Therefore health promotion is necessary for the young employees of an Korean R&D company.

Citations

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  • Dietary Life, Vitamin D Status and Blood Clinical Indices of University Laboratory Workers
    Jung Hyun Hwang, Hong Mie Lee, Jung Hee Kim
    Korean Journal of Community Nutrition.2019; 24(3): 245.     CrossRef
  • Influence of Health Behaviors and Occupational Stress on Prediabetic State among Male Office Workers
    Hosihn Ryu, Jihyeon Moon, Jiyeon Jung
    International Journal of Environmental Research and Public Health.2018; 15(6): 1264.     CrossRef
  • Association of Resilience and Depression with Self-care Competence in Adult Patients with Diabetes Mellitus
    Youngrye Park, Eun Hee Jang, Ji Ok Kim
    Korean Journal of Adult Nursing.2018; 30(5): 555.     CrossRef
  • Diabetes, Returning to Work, and Your Rights for Health
    Yu Jeong Park
    The Journal of Korean Diabetes.2018; 19(1): 53.     CrossRef
  • Investigation of Healthy Life Practices among Korean Males and Females in relation to Dyslipidemia Using data from the 2012 Korea National Health and Nutrition Examination Survey
    Sun-Hee Lee, GyeongAe Seomun
    Journal of Digital Convergence.2016; 14(1): 327.     CrossRef
  • The Relationship between Lifestyle and Health Status among White Collar Workers in a Community
    Ji-Min Lee, Young-Sook Kwon, Kyung-Shin Paek
    Journal of Digital Convergence.2014; 12(8): 411.     CrossRef
  • The Factors related to Dyslipidemia and Hypertension among Male Office Workers
    Eun Kyung Lee, Ok Soo Kim
    Korean Journal of Adult Nursing.2013; 25(4): 432.     CrossRef
  • Lifestyles and Factors Influencing the Bone Mineral Density (BMD) among Employees in a Community
    Kyung-Shin Paek
    Journal of Korean Academy of Community Health Nursing.2013; 24(2): 236.     CrossRef
  • Developing a Questionnaire to Assess Exposure to Food-Borne Hazards
    Sangah Shin, Seul Ki Choi, Hyemi Kim, Kyung Youn Lee, Sanghee Shin, Jung Won Lee, Soo Hyun Yu, Hye-Soen Nam, Hae-Jung Yoon, Hyojee Joung
    The Korean Journal of Nutrition.2011; 44(1): 61.     CrossRef
  • Lifestyle and Metabolic Syndrome among Male Workers in an Electronics Research and Development Company
    Jun Pyo Myong, Hyoung Ryoul Kim, Yong Kyu Kim, Jung-Wan Koo, Chung Yill Park
    Journal of Preventive Medicine and Public Health.2009; 42(5): 331.     CrossRef
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Effectiveness of Tailored Health Promotion Program for Reducing Cardiovascular Risk Factors in Subway Workers
Seon Young Lee, Kang Sook Lee, Jung Wan Koo, Hyun Woo Yim, Hyoung Ryoul Kim, Chung Yill Park, Sook Kyung Choi
Korean Journal of Occupational and Environmental Medicine 2006;18(1):15-24.   Published online March 31, 2006
DOI: https://doi.org/10.35371/kjoem.2006.18.1.15
AbstractAbstract PDF
OBJECTIVES
This study explores the effects of a tailored health promotion program, in order to reduce cardiovascular risk, in areas which include hypertension, dyslipidemia, abnormal blood glucose and body mass index.
METHODS
In this paper, health risk appraisal relating to lifestyle was surveyed and physical fitness, blood pressure and blood lipid profile and glucose were checked. Then, a 12 week tailored health promotion program with 40 subway workers of Seoul was conducted. The Tailored health promotion program included a smoking cessation program, drinking restriction, diet, exercise prescription and a stress management program.
RESULTS
The number of subjects engaging in regular exercise increased from 42.5% to 100%, and the number of smokers reduced from 72.5% to 60%, and 12.5% of contemplate stage was shift to action stage. The mean level of drinking per day, significantly decreased from 34.9 g to 24.2. The body mass index, systolic blood pressure, total cholesterol, triglyceride, and Fasting blood glucose significantly decreased after the intervention program. In addition the tailored health promotion program resulted in a significant reduction in two factors for the cardiovascular high risk group, hypertension above 140 mmHg in systolic blood pressure and dyslipidemia above 200 mg/dl in triglyceride.
CONCLUSION
In this paper, it is demonstrated that the tailored health promotion program,, including the smoking cessation program, drinking restriction, diet, exercise prescription and stress management program, resulted in effective reduction in cardiovascular risk factor. Therefore associated workplace tailored health promotion programs relating to specific individual risk factor, should be developed and implemented.

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    Won Ju Hwang, Yunhee Park, Jin Ah Kim
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    YOON CHOI, MIN JUNE LEE, HEE CHEOL KANG, MEE SOOK LEE, SUN YOON
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    WooJin Jeon, Jaehwan Cho
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    Gyu-Seok Hwang, Jae-Wook Choi, Seoung-Hyung Choi, Seoung-Gil Lee, Kyung-Hee Kim, Yong-Min Cho, Chungsik Yoon
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    Ji-Yeon Kang, Sang-Woon Cho, Ji-Young Lee, Sook-Hee Sung, Yoo-Kyoung Park, Yun-Mi Paek, Tae-In Choi
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  • A 12-week worksite health promotion program reduces cardiovascular risk factors in male workers with the apolipoprotein E2 and apolipoprotein E3 genotypes, but not in apolipoprotein E4 genotype
    Sang-Woon Cho, Ji-Yeon Kang, Yoo-Kyoung Park, Yun-Mi Paek, Tae-In Choi
    Nutrition Research.2009; 29(8): 542.     CrossRef
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Selection of a High Risk Group and the Effectiveness of an Exercise Program on Musculoskeletal Symptoms in Small and Medium Sized Enterprises
Bo Kyoung Kim, Chung Yill Park, Hyeon Woo Yim, Jung Wan Koo, Kang Sook Lee
Korean Journal of Occupational and Environmental Medicine 2005;17(1):10-25.   Published online March 31, 2005
DOI: https://doi.org/10.35371/kjoem.2005.17.1.10
AbstractAbstract PDF
OBJECTIVES
This study was conducted to provide data for the establishment of a practical and the effective exercise program for managing the musculoskeletal symptoms of workers who are employed in small and medium sized enterprises.
METHODS
The risk factors related to musculoskeletal disease management were chosen according to the relevant literatures, and were based on advise from experts on the Delphi method. Questionnaires on selected risk factors (with a 5-point Likert scale) were given to 785 subjects who worked in small and medium sized enterprises. The subjects were then classified in the risk group when they had the symptoms and recorded at least 3 points. From those subjects in the risk group, those who had both work-related factors and general characteristics factors (with an average of at least 3 points) were further classified as the high risk group. We performed a 12-week musculoskeletal exercise program for the low and high risk groups to analyze their changes in symptoms and complaints in order to estimate the effectiveness of the exercise program.
RESULTS
Out of 785 subjects, 454(57.8%) were in the risk group of musculoskeletal diseases and 121(15.4%) were in the high risk group. According to multiple logistic regression analysis of the factors for the musculoskeletal symptoms in the low risk group, the significant risk factors were sex and personal disease related with musculoskeletal disease, while the risk factors in the high risk group were age, sex, and personal disease related with musculoskeletal disease. After the 12-week exercise program was performed by the low risk group, the number of musculoskeletal symptom complaints in the control group did not significantly changed, whereas for the intervention group, the number of musculoskeletal symptom complaints significantly declined for all parts of the body. After the 12-week exercise program performed by the high risk group, the number of musculoskeletal symptom complaints in the control group was significantly enhanced for the arm and elbow parts. In the intervention group, the complaint rate for musculoskeletal symptoms significantly declined only for the low back.
CONCLUSION
The musculoskeletal symptoms were significantly improved by the exercise program in the low risk group, but not in the high risk group. It is suggested that control measures on administrative and/or work related factors, in addition to the exercise program should be considered simultaneously for the control of musculoskeletal symptoms in groups at high risk of musculoskeletal disease.

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    Sung Won Jung, Kyung Ha Kim, Min Hyun Suk, Rah Il Hwang
    Journal of Korean Public Health Nursing.2014; 28(3): 522.     CrossRef
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    Kyoo Sang Kim, Min Gi Kim
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Predictors of Return to Work in Occupational Injured Workers
Won Mee Jeong, Chung Yill Park, Jung Wan Koo, Young man Roh
Korean Journal of Occupational and Environmental Medicine 2003;15(2):119-131.   Published online June 30, 2003
DOI: https://doi.org/10.35371/kjoem.2003.15.2.119
AbstractAbstract PDF
OBJECTIVES
In order to obtain information useful in setting up occupational rehabilitation programs, an evaluation was conducted to determine predictive factors of workers' return to work after an occupational injury.
METHODS
13, 903 records of registered occupationally injured cases identified to have received disability compensation in 1998 were collected from the 36 branch of Korean Labor Welfare Corporation(KLWC). Through simple systematic sampling, a total of 3, 658 cases were selected as final subjects. Status of return to work, general characteristics, workplace characteristics, disability characteristics and disability outcome characteristics were collected from the KLWC and National Health Insurance Corporation records(NHIC). For statistical analyses, chi-square test and stepwise multiple logistic regression analysis were applied using the SAS software package program.
RESULTS
Negatively affecting significant predictive factors for return to work were included the female gender, age of 50 years or older, 6 month or less of work duration, 1 or less family dependents, workplace with 200 or less employees, electric, gas, waterwork companies, foot injuries compared to finger injuries, fall from elevation, high degree of disability claims(1~4 grade), and period of medical care more than 181 days.
CONCLUSIONS
The results suggest that the poor rate return to work in occupationally injured workers' is particularly affected by female gender, older-aged employees, and workers employed by electric, gas, waterwork companies. Also, it was more difficult to return to work for workers who received injuries from a fall from elevation and who had longer period of medical care(more than 181days). It is strongly recommended that more efficient and systematic occupational rehabilitation programs be set up, taking into consideration the above mentioned factors.

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  • Factors related to the physician and the employer influencing successful return to work in Korea: results from the first panel study of workers’ compensation insurance (PSWCI)
    Wanhyung Lee, Jin-Ha Yoon, Jaehoon Roh, Yeong-Kwang Kim, Hongdeok Seok, June-Hee Lee, Jong-Uk Won
    Annals of Occupational and Environmental Medicine.2015;[Epub]     CrossRef
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    Hwa-Sook Bae
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Stress Related Factors of Physically Disabled Workers in Manufacturing Industry
Min Ye Jung, Chung Yill Park, Jung Wan Koo, Young Man Roh
Korean Journal of Occupational and Environmental Medicine 2003;15(1):12-25.   Published online March 31, 2003
DOI: https://doi.org/10.35371/kjoem.2003.15.1.12
AbstractAbstract PDF
OBJECTIVES
This study was performed to measure the stress level of physically disabled workers, and to investigate the relationship between the stress dimensions and stress inducing factors of physically disabled workers in the Korean manufacturing industry.
METHODS
The sample used in this study consisted of 341 physically disabled workers who had been working at companies in Seoul, Inchon, and Gyung-gi provinces. The Psycho-social Well-being Index (PWI), a modified version of Goldberg's 60-items of General Health Questionnaire (GHS), was used to measure the stress level. The following independent and moderate variables were designed for the same purpose. The independent variables were general and disability characteristics, workplace-related characteristics, and job stressor of the respondents. The other variables included organization-related stressors (social and family support) and person related stressors (needs and values, type A behavior pattern, locus of control and demographics), self-esteem and coping strategy. The collected data were analyzed using SAS version 6.12 program.
RESULTS
Multiple logistic regression analysis showed that the significant variables on the stress level of physically disabled workers were poor self-perceived health status, low self-esteem, absence of regular exercise, physically disabled condition affecting work performance capability, dependent mobility at home, interpersonal conflict, role conflict and A type behavior pattern.
CONCLUSIONS
The results of this study suggest that appropriate health promotion program should be established and provided for reducing the stress of physically disabled workers in the manufacturing industry. In addition, various vocational programs for decreasing interpersonal and role conflicts should be developed.

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  • Effects of Job Demand and Recovery Experience from Job Stress on Job Embeddedness among Workers in the Service Industry
    So Yeun Jun, Youn Hyang Lee, Eun Kyung Choi
    Journal of Korean Academy of Community Health Nursing.2018; 29(2): 143.     CrossRef
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Health Behavior Practices and Needs for Health Promotion Program According to Shift Work Pattern in Subway Workers
Suk Kyong Choi, Kang Sook Lee, Joung Woon Lee, Jung Wan Koo, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 2003;15(1):37-51.   Published online March 31, 2003
DOI: https://doi.org/10.35371/kjoem.2003.15.1.37
AbstractAbstract PDF
OBJECTIVES
To determine the health behavior practices and needs for health promotion in shift work pattern in subway workers.
METHODS
Among 789 male subway workers divided into four groups, 191 day time workers, 187 station service men (3 groups, 2 turns), 204 rolling stock inspectors (3 groups, 2 turns) and 207 train operators (8 groups, 5 turns), we surveyed the health behavior and needs for health promotion by questionnaire.
RESULTS
For obesity, blood pressure and total cholesterol, day time workers had the highest levels, while train operators had higher diseases of the liver and stomach than others. The station service men had the highest smoking rate and daily smoking amount. More than 80% of the respondents consumed alcohol, and the drinking amount was highest among the day time workers and the 8/5 shift train operators. Eighty-two percent of the station service men had irregular eating habits and 17.7% did not have any breakfast. In health promotion activities, exercise and restriction of one's favorite(smoking or drinking) were most preferred in the four groups of respondents. The priority of needs and participation for health promotion program was exercise programs, followed by stress management, cancer prevention program, weight control program, anti-smoking campaign, high blood pressure control program, and abstinence/moderation in drinking.
CONCLUSION
As the health behavior practices differed relative to shift work patterns, it was suggested that a comprehensive health promotion program according to shift work pattern should be planned and implemented among subway workers.

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    Journal of Korean Academy of Community Health Nursing.2017; 28(4): 524.     CrossRef
  • Effects of sleep quality and occupational stress on health-related quality of life among a university's security workers
    Gun Woo Park, Su-Jin Goh, Dong Ha Kim, Hye Lim Kim, Jin Kwan Park, Soo-Young Yu, Du Young Jeong, Jin-Hee Chun, Soon-Young Hwang, Sung-Il Cho
    Korean Journal of Health Education and Promotion.2015; 32(3): 73.     CrossRef
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  • Health Behaviors by Job Stress Level in Large-Sized Company with Male and Female Workers
    Hyunju Park, Hye-Sun Jung
    Journal of Korean Academy of Nursing.2010; 40(6): 852.     CrossRef
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An Evaluation of the Ventilatory Function in Shipyard Welders Using the Lifetime Cumulative Exposure to Welding Fumes
Chun Hwa Jung, Hyeon Woo Yim, Jung Wan Koo, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 2002;14(4):364-376.   Published online December 31, 2002
DOI: https://doi.org/10.35371/kjoem.2002.14.4.364
AbstractAbstract PDF
Objectives
This study was conducted to evaluate the ventilatory function in shipyard welders using the lifetime cumulative exposure to welding fumes.
METHODS
Ventilatory function tests were performed on 241 male welders at one large shipyard,exposed to welding fumes for over five years,and was compared to 80 male control subjects. Ventilatory function indices, such as forced vital capacity(FVC), one-second forced expiratory volume(FEV 1), ratio of FEV 1 to FVC(FEV 1%), maximal mid-expiratory flow(MMF), peak expiratory flow rate(PEFR)and maximal expiratory flow at 50 and 75% of expired FVC(FEF50 and FEF75), were obtained by analyzing forced expiratory spirograms and maximal expiratory flow-volume curves that were simultaneously measured by an Impulse ocillometry(IOS)program in the standing position.
RESULTS
FEF50 and FEF75 expressed as a percentage of the predicted values were significantly lower in the exposure group than in the controls, and the MMF tended to decrease.The means of all the ventilatory indices,expressed as percentage of the predicted values, were not significantly increased at the current exposure levels. The MMF, FEF50 and FEF75, expressed as a percentage of the predicted values, were significantly decreased with an increase in exposure duration.Only the FEF75 , expressed as a percentage of the predicted value, was significantly decreased with an increase in the cumulativeexposure to welding fumes(C1). The FEF75, expressed as a percentage of the predicted value, was significantly decreased with an increase in the cumulative exposure to welding fumes(C2). The above parameters were calculated to consider the current exposure level, exposure duration, application of the ventilatory system, production rate, personal protection evice, electrode and welding wire. The MMF and FEF50, expressed as a percentage of the predicted value, tended to decrease. The proportion of workers with abnormal MMF, FEF50 and FEF75 were significantly increased with an increase in the cumulative exposure to welding fumes(C2).
CONCLUSIONS
These findings suggested that the MMF, FEF50 and FEF75 are sensitive and practical indices for the evaluation of the ventilatory function of workers exposed to welding fumes, when the lifetime cumulative exposure(C2) is considered as a factor affecting exposure.

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Effects of Sociodemographic Factors on the Stage of Behavior Change Among Employees of Small to Medium Sized Enterprises
Myung Hoi Koo, Hyeon Woo Yim, Chung Yill Park, Kang Sook Lee, Jung Wan Koo
Korean Journal of Occupational and Environmental Medicine 2002;14(1):85-96.   Published online March 31, 2002
DOI: https://doi.org/10.35371/kjoem.2002.14.1.85
AbstractAbstract PDF
OBJECTIVES
This research attempts to investigate the relationship between health risk factors and workers'behavioral changes based on individual worker's characteristics to allow the development of more effective health promotion programs in businesses places.
METHODS
A questionnaire survey was conducted with 282 workers employed in small to medium sized enterprises in the Kyong-in area of Korea. The questionnaire was composed of general characteristics, a health risk assessment and an evaluation of the stage of behavior change for health promotion strategy in the workplace.
RESULTS
The health risk assessment revealed that 65.7 % of male workers smoke, 70.5% of male workers do not exercise on a regular basis, 86.1 % of female workers do not exercise at all, and 78.6 % of male workers and 50 % of female workers drink alcohol. In addition, the survey identified that 29.5% of male workers are addicted to excessive drinking, as are 11.1% of female workers. Based on the four stages of behavioral changes that lead to health, the pre-contemplation stage, contemplation stage, action stage, and maintenance stage, 40.5 %, 23.7 %, 12.1 % and 23.7 % of workers are in these stages, respectively, with regards to quitting smoking. As for regular exercises, 18.4 %, 37.6 %, 17.7 %, and 26.3 % of workers belong to each stage, respectively. As for moderation in drinking, 20.9 %, 15.4 %, 10.0 %, and 53.7 % are in each stage, respectively. The rate of health managers in the active stage of quitting smoking is significantly higher than that of general workers. Among the workers who do not exercise on a regular basis, workers over 50 years-old and blue color workers are more common in the precontemplation stage than any other worker groups.
CONCLUSIONS
The results of this study suggest that the stages of behavioral change vary with worker characteristics. An awareness of the effects of the high risk factors is essential for promoting workers'attendance in health promotion programs.

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  • Effects of a Tailored Health Promotion Program to Reduce Cardiovascular Disease Risk Factors Among Middle-Aged and Advanced-Age Bus Drivers
    Gyu-Seok Hwang, Jae-Wook Choi, Seoung-Hyung Choi, Seoung-Gil Lee, Kyung-Hee Kim, Yong-Min Cho, Chungsik Yoon
    Asia Pacific Journal of Public Health.2012; 24(1): 117.     CrossRef
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Changes of Superoxide Dismutase Activity in Cadmium-induced Acute Nephrotoxicity of Rats
Soo Jin Lee, Hyun Chul Koh, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 2001;13(4):393-400.   Published online December 31, 2001
DOI: https://doi.org/10.35371/kjoem.2001.13.4.393
AbstractAbstract PDF
OBJECTIVES
To investigate the role of superoxide dismutase(SOD) in the pathogenesis of cadmium-induced acute nephrotoxicity.
METHODS
Rats treated with a single intraperitoneal injection of cadmium(as CdCl2, 1 mg/kg) were included in the cadmium-treated group; the control group comprised untreated rats. 24-hour urine samples were obtained prior to sacrifice on days 1, 2, 4, 8 and 16(N = 10 per group), respectively. The activity of SOD and concentration of cadmium were measured in the homogenates of the renal cortex. Nephrotoxicity indices such as N-acetyl-beta-D-glucosaminidase(NAG) activity, total protein, and 24-hour urine volume, and the cadmium concentrations in the urine were measured.
RESULTS
The cadmium injection caused a significant increase of cadmium concentration in the renal cortex on days 1 and 2, and in the urine on days 1, 2 and 4. The NAG activities and total protein concentrations in urine were significantly increased on days 1, 2 and 4, and on days 1, 4 and 8, respectively. The peak values of NAG activity and total protein in urine were observed on days 1 and 4, respectively. A significant decrease of 24- hour urinary volume was induced on day 1. Renal SOD activity was significantly inhibited on day 1. Finally, on day 8, SOD activity was significantly increased and all nephrotoxicity indices except urinary total protein returned to the control level.
CONCLUSIONS
These results suggest that cadmium induces initial depression of SOD enzyme activities in the renal cortex followed by a later activation, and that the initial depression of this enzyme plays an important role in mediating the proteinuric injury of cadmium-induced acute nephrotoxicity.

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Effects of Respirator Use Evaluated by Urinary Hippuric Acid Concentration in Toluene-Exposed Workers
Bum Seok Kim, Chung Yill Park, Hyeon Woo Yim, Hyoung Ah Kim, Sang Yong Oh
Korean Journal of Occupational and Environmental Medicine 2001;13(4):461-469.   Published online December 31, 2001
DOI: https://doi.org/10.35371/kjoem.2001.13.4.461
AbstractAbstract PDF
OBJECTIVES
This study was carried out in order to raise workers'recognition of the effects of respirator use by providing concrete and practical data.
METHODS
Twenty-six workers who dealt with toluene based ink and diluents at a gravure printing office in Seoul were investigated. The toluene exposure level and urinary hippuric acid level were monitored under respirator non-wearing(RNW) and under respiratory wearing(RW) conditions.
RESULTS
The mean concentrations of toluene exposed to each worker through the air of gravure printing office were 147.52+/-57.34 and 134.55+/-52.44 ppm on respirator non-wearing day and respirator wearing day, respectively. There was no significant difference in toluene exposure concentration for the two days. The mean concentration of urinary hippuric acid in RNW and RW groups were 1.51 (0.53) g/L and 0.49 (0.14) g/L, respectively, as measured at the end of the workday. There was a significant difference seen in urinary hippuric acid concentration between the two days. The urinary hippuric acid concentration began to increase at 4 hours after the start of the workday(13:00) in RNW. However, there was no significant increase until the end of the workday in the case of RW. The urinary hippuric acid concentration in RW reduced 89.3% as compared with the concentration seen in RNW. There was a significant correlation between the toluene concentration and the urinary hippuric acid concentration in RNW. The regression equation was Y (urinary hippuric acid concentration, g/L) = 0.007 X x(toluene concentration in the air, ppm) + 0.665.
CONCLUSIONS
Our results indicate that the respirator intercepted most toluene that may have been absorbed into the respiratory organs, and suggested that properly wearing a respiratory such as wearing the respirator during the entire workday and performing a proper fit test played an important role in the protection from toluene exposure

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  • Effects of Factors Associated with Urine Hippuric Acid Correction Values in Urinary Creatinine by HPLC and Jaffe Method and Specific Gravity HPLC Jaffe Method
    Key-Young Kim, Jong-Gyu Kim, Ki-Nam Yoon, Wha-Me Park, Hun-Hee Park
    Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(4): 493.     CrossRef
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Effects of Stem Cell and Myeloperoxidase on Sister Chromatid Exchanges and Micronuclei Induction of Peripheral Lymphocytes by Styrene, Hydroquinone and Trichloroethylene
Kyung Jae Lee, Hyoung Ah Kim, Min Jung Shin, Jae Hyug Sung, Chung Yill Park, Hoon Han, Se Hoon Lee
Korean Journal of Occupational and Environmental Medicine 2001;13(3):315-324.   Published online September 30, 2001
DOI: https://doi.org/10.35371/kjoem.2001.13.3.315
AbstractAbstract PDF
OBJECTIVES
The objective of this study was to identify the possible role of stem cell and myeloperoxidase (MPO) in the metabolic activation of styrene, hydroquinone and trichloroethylene, by investigating the effects of stem cell from umbilical cord blood and MPO on the frequency of sister chromatid exchange (SCE) and micronuclei (MN) induction in cultured human peripheral lymphocytes exposed to these chemicals.
METHODS
Isolated lymphocytes from whole blood were cultured for 72 hours. The cells were treated with 1.50 mM styrene, 50 microM hydroquinone and 1.50 mM trichloroethylene dissolved with acetone (30 microl in total volume) at 24 hours after the beginning of culture. Control group was treated with acetone only. Immediately after adding these chemicals, 1.3X1 06 cells/ml and 2.6X1 06 cells/ml stem cell or 1.0 and 2.0 unit MPO with H2O2 (for substrate) were added to the cultures. Slides were stained with Giemsa's solution, and acridine orange for sister chromatid exchange, and for micronucleus analysis, respectively.
RESULTS
The results were as follows: 1) Myeloperoxidase and stem cell did not significantly affect the frequencies of SCE or MN in the control group. 2) The frequency of SCE or MN with exposure to styrene did not different from control in the absence of stem cell or MPO. Sister chromatid exchange induced by styrene was significantly increased by adding stem cell or MPO in dose-dependent relationship. The frequency of MN induced by styrene significantly increased in the presence of 2.0 unit MPO. 3) The frequency of SCE was significantly increased with exposure to hydroquinone than acetone treated control in the absence of stem cell or MPO. Sister chromatid exchange induction by hydroquinone significantly increased dose-dependently in the presence of stem cell or MPO. There was a tendency of increase of the MN frequency induced by hydroquinone in the presence of stem cell or MPO, but not significant. 4) It was found that trichloroethylene itself did not increase SCE or MN frequency. Frequency of SCE induced by trichloroethylene was significantly increased with adding stem cell (low and high) and 2.0 unit MPO. Even though stem cell or MPO increased the frequency of MN of lymphocyte exposed to trichloroethylene, the difference was not significant.
CONCLUSIONS
Authors found that the frequencies of both sister chromatid exchange and micronucleus induced by styrene, hydroquinone, and trichloroethylene were increased significantly with the treatment of stem cell or myeloperoxidase. It was suggested that myeloperoxidase may therefore play an important role in the metabolic activation of styrene, hydroquinone, and trichloroethylene and myeloperoxidase probably be involved in the myelotoxicity of these chemicals.

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A Relationship between Cumulative Trauma Disorder and the Type of Workstations and Chairs in Workers with Repetitive Motion Tasks
Hyun Gi Jeong, Young Man Roh, Hyeon Woo Yim, Chung Yill Park, Chun Hwa Jeong
Korean Journal of Occupational and Environmental Medicine 2001;13(2):152-163.   Published online June 30, 2001
DOI: https://doi.org/10.35371/kjoem.2001.13.2.152
AbstractAbstract PDF
OBJECTIVES
The main purpose of this study was to investigate relationship between cumulative trauma disorders(CTDs) and the types of workstation and chair in workers with repetitive motion tasks.
METHODS
The study subjects were 77 repetitive motion tasks workers at small manufacturing industries in Seoul and Gyung-gi district area. A questionnaire was used to obtain about health practice for prevention and prevalence of CTDs by worker. The type of Workstations and chairs in workers were measured and analyzed with prevalence of CTDs by logistic regression.
RESULTS
Eighty-six percent of workers recognized that work posture was related to workstation and chair. Most employers and employees didn't follow the work practice guidelines for workers with repetitive motion tasks. The prevalence of CTDs was 64% by questionnaire. The prevalence of pain in shoulder, neck, back, and arm were 38%, 15%, 6%, and 5%, respectively, and the pain started after working an average duration of 16.5 months. The CTDs symptoms were significantly related to thickness of workstation, height of workstation, length of knee depth under workstation, height of back rest, height of seat pan, depth of sitting surface, width of sitting surface, and length from workstation surface edge to shoulder. By multiple regression analysis of each risk factor, prevalence of CTDs was highly correlated with height of back rest, height of seat pan, and depth of sitting surface.
CONCLUSIONS
This study suggests that workstations should be made adjustable for height and chairs should be equipped with seat pan height control, enough sitting surface for depth and width, back rest height and angle control. The workers should use the right working postures, exercise for health, occupational health education, and rest breaks and the manager of company should be educated for the preventing of CTDs.

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    Yeongsu Kim, Seokho Kang, Hyunggyu Park, Seungmin Woo, Daniel Dooyum Uyeh, Yushin Ha
    Applied Sciences.2021; 11(22): 11016.     CrossRef
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    Su-Jeong Yoo, Eun-Young Nam, Hyeong-Jun Kim
    The Journal of Oriental Obstetrics and Gynecology.2016; 29(2): 83.     CrossRef
  • Analysis of Electromyographic Activities of Erect Spinae at Different Height of Table during Ultrasound Therapy Work
    Chung-Yoo Kim, Jong-Ho Kang
    Journal of the Korean Society of Physical Medicine.2013; 8(3): 289.     CrossRef
  • Correlation Between the Height and the Subjective Discomfort Ratings and Muscle Performance at performing the Lower Arm's Pronation and Supination according to the Changes in Height of Working Table
    Kyung Tae Yoo, Jung Hyun Choi, Hee Jung Kim, Bom Lee, Jea Wook Jung, Wan Suk Choi, Young Dae Yun, Soon Hee Kim
    Journal of International Academy of Physical Therapy Research.2012; 3(2): 469.     CrossRef
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Knowledge, Attitude and Practice on Industrial Safety and Health in Technical High School Students
Sung Pil Choi, Chung Yill Park, Hyeon Woo Yim
Korean Journal of Occupational and Environmental Medicine 2001;13(2):171-179.   Published online June 30, 2001
DOI: https://doi.org/10.35371/kjoem.2001.13.2.171
AbstractAbstract PDF
OBJECTIVES
This study was carried out to determine the knowledge(K), attitude(A) and practice(P) on major industrial safety and health problems among on-the-job training students.
METHODS
We used self-administered questionnaire regarding rules or regulations, the management of hazardous materials, the work place hygiene, the use of protective device, arrangement and improvement job site, ventilation, safety and health education, and inspection and management of equipment.
RESULTS
In general, the mean score of KAP in educated group compared with non-educated group was significantly higher. As increasing the frequency of education, the mean scores of KAP were increased. There were not significant differences among 'work duration' groups on total mean scores of knowledge and practice. But on that of the attitude, there was significant differences among 'work duration'groups. There were significant differences among 'size of enterprise'groups on total mean scores of knowledge and attitude. But on that of the practice, there was no significant differences among'size of enterprise' groups. In stepwise multiple regression analysis, education frequency and method were significantly attributed to KAP, but the coefficient of determination were low.
CONCLUSIONS
it is suggested that the increase of education time was the most important thing for improving the knowledge, attitude and practice on industrial safety and health in technical high school students.

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  • A Study on the Preceding Researches for the Safety Behavior in Construction
    Simon Hang-Bok Rhee, Chi-Don Oh, Jin-Woo Choi
    Journal of the Korea Safety Management and Science.2013; 15(3): 19.     CrossRef
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The Relationship between Health Value Cognition, Health Promotion Behavior and Health Examination Results Among Transit Corporation's Workers
Sun Joo Lee, Chung Yill Park, Hyun Woo Yim, Young Man Roh, Chee Kyung Chung
Korean Journal of Occupational and Environmental Medicine 2000;12(3):356-366.   Published online September 30, 2000
DOI: https://doi.org/10.35371/kjoem.2000.12.3.356
AbstractAbstract PDF
OBJECTIVES
This study was performed to compare health value cognition and health promotion behavior compliance between healthy group and not being healthy group, and to evaluate the difference of health promotion behaviors compliance between high group and low group in health value cognition.
METHODS
The subjects of this study were 565 workers, 233 healthy workers, 172 observation cases and 160 disease cases, selected from 4,919 transit coporations workers.
RESULTS
In health promoting behavior compliance, not being healthy group showed lower level than healthy group in exercise and showed higher level than healthy group in interpersonal support significantly. A worker who replied on health as the most value in life was consisted in 37.3% of healthy group and 36. 1% of not being healthy group, Health value cognition according to general characteristics showed no significant difference except only variable of age in healthy group. Health promoting behavior compliance according to cognition of health value showed in healthy group that a high level group of health value cognition was more significant difference than a low level group in self actualization and health responsibility of health promoting behavior and didn't show difference significantly in not being healthy group.
CONCLUSIONS
In conclusion, the relationship between health value cognition, health promotion behavior compliance and periodic health examination results showed weakly. Therefore, in order to develop and apply spontaneous health promotion program, it was considered that should emphasize compliance than cognition.

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Effects of Genetic Factor, Life Styles, and Diet on Urinary Hippuric Acid Excretion in Toluene Exposed Workers
Hyeon Woo Yim, Chung Yill Park, Young Man Roh, Kang Sook Lee, Jung Min Lee, Won Chul Lee, Se Hoon Lee, Chee Kyung Chung
Korean Journal of Occupational and Environmental Medicine 2000;12(3):405-420.   Published online September 30, 2000
DOI: https://doi.org/10.35371/kjoem.2000.12.3.405
AbstractAbstract PDF
OBJECTIVES
The purpose was to investigate the distributions and the effects of genetic polymorphism of aldehyde dehydrogenase 2(ALDH2), cytochrome P450 1A1(CYP1A1), and cytochrome P450 2E1(CYP2E1) on the toluene metabolism.
METHODS
The subjects consisted of 160 workers who were exposed to toluene in different industries such as paint manufacturing, painting on steel and wood products, printing, bonding, and coating. The exposed toluene level was monitored by passive air sampler, and the questionnaire variables were age, sex, smoking, drinking, previous nights drinking, use of personal protective equipment, work duration, and taking benzoic acid containing food. The urinary hippurric acid collected in the end of shift was corrected by urinary creatinine concentration. The genotypes of ALDH2, CYP1A1, and CYP2E1 were investigated using polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP) methods with DNA extracted from venous blood.
RESULTS
The geometric mean and the geometric standard deviation of urinary hippuric acid concentration were 0. 44 g/g creatinine and 2. 80. The urinary hippuric acid concentration was significantly related to personal exposed toluene level among personal exposed toluene level, use of personal protective equipment, and benzoic acid containing food diet. The slope differences of the regression for ALDH2, CYP1A1, and CYP2El genetic polymorphism, age, smoking, and work duration tended to be significant. In multiple regression analysis, the regression coefficient of toluene, ALDH2, CYP1A1, CYP2E1 genetic polymorphism were significant.
CONCLUSIONS
Prom the above results, urinary hippuric acid level after toluene exposure was significantly affected by the genetic polymorphism of ALDH2, CYP1A1, CYP2E1. It is needed further investigation of the urinary hippuric acid level considering the effect of genetic polymorphism.

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  • Applications of CYP-450 expression for biomonitoring in environmental health
    Ho-Sun Lee, Mihi Yang
    Environmental Health and Preventive Medicine.2008; 13(2): 84.     CrossRef
  • Past and Future Applications of CYP450-Genetic Polymorphisms for Biomonitoring of Environmental Toxicants
    Bitna Yi, Ji-Yeon Yang, Mihi Yang
    Journal of Environmental Science and Health, Part C.2007; 25(4): 353.     CrossRef
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Time Series Analysis between the Concentration of Air Pollutants and the Number of Respiratory Disease Outpatients in Seoul
Byeong Chul Choi, Jung Wan Koo, Sung Kyun Park, Hyun Woo Yim, Kang Sook Lee, Won Chul Lee, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 2000;12(1):70-80.   Published online March 31, 2000
DOI: https://doi.org/10.35371/kjoem.2000.12.1.70
AbstractAbstract PDF
OBJECTIVES
This study was conducted to investigate whether air pollution levels in Seoul have short term effects on respiratory disease outpatients.
METHODS
We analyzed five air pollutants (CO, NOy, Oy, SOp, PMyp) and daily counts of outpatient for respiratory disease divided by age group ((15yrs, 15-64yrs, 65+yrs) during the period of July 1997-June 1998 using Generalized Additive Model(GAM).
RESULTS
After controlling for seasonal trends, day of the week, week of the month, temperature and humidity, CO (RR=1. 041 ~ l. 051, 0-day lag) and NOy (RR=1. 024~1. 050, 3-day lag) were significantly associated with daily counts for respiratory disease in all age groups. 0, and SO, were associated, with a 3-day lag in the age group under 15 years (O RR=1. 047, 95% CI=1. 045- 1. 049 i SOp RR=1. 018, 95% CI=1. 017- l. 020) and with a 0-day lag in the age group 15 to 64 years (0, RR=1. 035, 95% CI=1. 032-1. 037; SO, RR=1. 037, 95% CI=1. 035-1. 039), in the age group over 65 years (O RR=1. 042, 95% CI=1. 033-1. 051; SO RR=1.029, 95% CI=1.022-1.036). PM was weakly associated, with a 1-day lag in the age group under 15 years (RR=1.011, 95% CI=1.010-1.013) and with a 0-day lag in the age group 15 to 64 years (RR=1. 021, 95% CI=1. 019-1. 023), in the age group over 65 years (RR=1. 025, 95% CI=1. 018-1. 032). In the two pollutant model, the magnitudes of the relative risk for CO, NOy and Oq were maintained, but SOy was not associated with daily counts for respiratory disease in the age group under 15 years after controlling for NO,. PMyp was not associated in all age groups after controlling for CO, so the association with PMyp in the single pollutant model might be confounded by CO. In this study, the impact Of PMyp on the respiratory disease was not large as compared with other pollutants.
CONCLUSIONS
Air pollution in Seoul may increase the incidence of the respiratory disease, so more positive attention for the control of air pollution should be paid.

Citations

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  • Impact of environmental factors on pulmonary tuberculosis in multi-levels industrial upgrading area of China
    Xiang Yi, Shixiao Liu
    Environmental Research.2021; 195: 110768.     CrossRef
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Usefulness of Power Spectral Analysis for Measurement of Local Muscle Fatigue during Keyboard Task
Soon Young Kwon, Chung Yill Park, Jung Wan Koo, Hyeon Woo Yim, Kang Sook Lee
Korean Journal of Occupational and Environmental Medicine 1999;11(4):449-459.   Published online December 31, 1999
DOI: https://doi.org/10.35371/kjoem.1999.11.4.449
AbstractAbstract PDF
OBJECTIVES
Work-related upper extremity disorders of the tendons, nerves, and musdes associated with. repetitive motion represent an increasing proportion of occupational illnesses, medical services, and workers' compensation costs. Severe local muscle fatigue may be a precursor of repetition strain injuries. The demand for objective and quantitative assessment of local muscle fatigue is now increasing. The purpose of this study is to determine the usefulness of power spectral analysis of individual muscle as one of the objective spectral parameters in quantification of local muscle fatigue.
METHODS
From 10 normal male without neuromuscular dysfuction, motor unit action potentials (MUAPs) of three muscles (upper trapezius, infraspinatus, and anterior deltoid) of left shoulder girdle were obtained. The surface electrodes were used and the changes of power spectrum according to frequency components were calculated per minute during the keyboard task for 30-minute period by power spectral analysis of MUAPs signal.
RESULTS
There was a linear relationship between median frequency (MF) and time flow in the upper trapezius muscle, however the same was not observed in other muscles. The MF slope of the upper trapezius muscle showed a decline of the MF over time and reflected the fatigue rate. Other spectral parameters, such as mean frequency and total power were not significantly correlated to time flow during the keyboard task in all three muscles. And no significant correlation was observed between keying rate and slope of median frequency of upper trapezius muscle.
CONCLUSIONS
Above results suggested that the power spectral analysis on median frequency in upper trapezius muscle would be useful in quantification of local muscle fatigue during the keyboard task and local muscle fatigue of shoulder was affected by static posture, not by keying rate.

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Need Assessment for Stage of Behavior Change in Workplace Health Promotion Strategy
Kang Sook Lee, Jung Wan Koo, Hyeon Woo Yim, Hyun Sook Hong, Joung Min Lee, Won Chul Lee, Chung Yill Park, O'Donnell, M , Kwang Ho Meung
Korean Journal of Occupational and Environmental Medicine 1999;11(4):492-504.   Published online December 31, 1999
DOI: https://doi.org/10.35371/kjoem.1999.11.4.492
AbstractAbstract PDF
OBJECTIVES
In order to evaluate the stage of behavior change for health promotion strategy in workplace METHODS: Questionnaire survey was carried out for 309 workers who employed in H Electronics company in Kyongin area from September to October 1998.
RESULTS
According to need assessment of four step such as precontemplation stage, contemplation stage, action stage, maintenance stage which were to change of behavior for health promotion, the percent for quitting smoking were observed 48.8%, 43.1%, 8.1%. 0 %, and for the restriction of drinking were 29.8%, 10.6%, 9.3%, 5.3%; for fitness 11.1%, 31.0%, 37.3%, 20.6% in male 26.6%, 27.8%, 26.6%, 19.0% in female, for regular diet 26.1%, 19.8%, 38.7%, 15.3% in male, 27.8%, 22.2%, 40.0%, 10.0 % in female and for stress management 5.8%, 10.6%, 8.7%, 75.0% in male, 13.6%. 22.7%, 19.7%, 44.0% in female. In heavy smoker (p=0.017) and heavy drinker, (p=0.021) the percent of precontemplation stage was significantly higher than in lower drinker and light smoker.
CONCLUSIONS
This study suggested that company support for health promotion in workplace was weak and workers of high risk group for smoking and drinking were in precontemplation stage. So before conducting the health promotion program, health risk appraisal and need assessment for stage of behavior change should be taken for the efficient heath promotion strategy.

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  • Effects of a Tailored Health Promotion Program to Reduce Cardiovascular Disease Risk Factors Among Middle-Aged and Advanced-Age Bus Drivers
    Gyu-Seok Hwang, Jae-Wook Choi, Seoung-Hyung Choi, Seoung-Gil Lee, Kyung-Hee Kim, Yong-Min Cho, Chungsik Yoon
    Asia Pacific Journal of Public Health.2012; 24(1): 117.     CrossRef
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An Evaluation for the Occupational Distribution of Carpal Tunnel Syndrome Diagnosed at a University Hospital
Yong Hyu Choi, Seong Kyu Kang, Chang Ho Chae, Jong Han Leem, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 1999;11(3):313-322.   Published online September 30, 1999
DOI: https://doi.org/10.35371/kjoem.1999.11.3.313
AbstractAbstract PDF
OBJECTIVES
The study was carried out to evaluate the work-relatedness and the occupational distribution in 147 carpal tunnel syndrome(CTS) cases diagnosed at a university hospital from May 1996 to May 1998.
METHODS
We obtained the information on disease appearance, occupational history including job content and other life style by medical records and telephone interviews.
RESULTS
Of the 147 patients with carpal tunnel syndrome, 51 patients(34.7 %) were shown to be work-related. Work-related CTS were most frequent in elementary workers (21 case, 41.2%). The other eases were 15(29.4%) workers in service and shop and market sales, 9(17.6%) workers in craft and related traders, 4(7.8%) workers in skilled agriculture and fishery. Only two workers had claimed to the Industrial Accident Compensation Insurance, but no one has been admitted as an occupational CTS yet.
CONCLUSIONS
It is suggested that arrangements of surveillance system for adequate control of occupational CTD is neccessity.

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  • Distribution of age, gender, and occupation among individuals with carpal tunnel syndrome based on the National Health Insurance data and National Employment Insurance data
    Il-Ho Lee, Young-Ki Kim, Dong-Mug Kang, Se-Yeong Kim, In-Ah Kim, Eun-Mi Kim
    Annals of Occupational and Environmental Medicine.2019;[Epub]     CrossRef
  • Significance and prospect of workers health center
    Jong-Seo Kim, Dae-Seong Kim, Hee-Jung Gil, Young-Sik Park, Hyeon-Hwa Sin, Jong-Tae Park
    Journal of the Korean Medical Association.2014; 57(2): 159.     CrossRef
  • I never expected to be a disabled person in another country: the stories of migrant workers with acquired disabilities in Korea
    Kyung Mee Kim
    Disability & Society.2011; 26(5): 553.     CrossRef
  • Occupational Diseases in Korea
    Seong-Kyu Kang, Eun A Kim
    Journal of Korean Medical Science.2010; 25(Suppl): S4.     CrossRef
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Prevalence of Tinnitus and Hearing Thresholds of a Non-Noise-Exposed Population with and without Tinnitus
Jung Wan Koo, Won Chul Lee, Hyunwook Kim, Byeong Chul Choi, Min Hwa Oh, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 1999;11(3):323-331.   Published online September 30, 1999
DOI: https://doi.org/10.35371/kjoem.1999.11.3.323
AbstractAbstract PDF
OBJECTIVES
In order to establish prevalence and characteristics of tinnitus and hearing thresholds according to tinnitus, this study was carried out.
METHODS
Nine hundred and thirty two subjects, undergone human dock or general health check-up and been in college, were surveyed to the questionnaire on the general characteristics, past medical histories, life styles, subjective symptoms about hearing, taking ototoxic drugs and were conducted on the hearing thresholds by pure tone audiometry.
RESULTS
Of the total population, 98 reported tinnitus, giving an overall prevalence of 10.5%, prevalence of tinnitus in the subjects with the factors infuencing hearing thresholds were 17.4 %, prevalence without the factors influencing hearing thresholds were 7.5 %. Frequency of tinnitus of the total population was the highest in 'once per several months'(39.6 %) and followed by' once per several days'(29.7 %), 'all day long'(16.5 %) and' several times per day'(14.3 %). Complaint site of tinnitus was 41.8 % in left ear or right ear 39.6 % in both ear and 18.7 % in head. The 13.6% of the total subjects complained sleep disturbance. Hearing thresholds in the subjects without the factors influencing hearing thresholds tended to increase or decrease in 20 and 30 years old according to tinnitus, but those with, tinnitus tended to increase more than chose without tinnitus in 40 and 50 years old.
CONCLUSIONS
Results also provide evidence that reports of tinnitus at the time of annual audiometric testing may be useful in identifying workers at greater risk for developing significant shifts in hearing thresholds. Awareness of the possible occurrence of tinnitus may encourage worker to cooperate more actively in a company hearing conservation programme.

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  • Autonomic Conditions in Tinnitus and Implications for Korean Medicine
    Eun Ji Choi, Younghee Yun, Seungyeon Yoo, Kyu Seok Kim, Jeong-Su Park, Inhwa Choi
    Evidence-Based Complementary and Alternative Medicine.2013; 2013: 1.     CrossRef
  • Roles of Cognitive Characteristics in Tinnitus Patients
    So-Young Lee, Ji-Hae Kim, Sung-Hwa Hong, Dong-Soo Lee
    Journal of Korean Medical Science.2004; 19(6): 864.     CrossRef
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The Effects of Knowledge and Attitude about Noise on Hearing Conservation Behavior and Hearing Loss
Jung Wan Koo, Chung Yill Park, Chee Kyung Chung, Kang Sook Lee, Hyeon Woo Yim, Young Gyu Phee, Soon Young Oh, Wan Shik Ham
Korean Journal of Occupational and Environmental Medicine 1998;10(4):476-483.   Published online December 31, 1998
DOI: https://doi.org/10.35371/kjoem.1998.10.4.476
AbstractAbstract PDF
This study was conducted to investigate knowledge and attitude factor related to hearing conservation and to evaluate the effect of knowledge and attitude about noise on hearing conservation behavior and hearing loss among workers exposed to noise. We investigated the questionnaires of knowledge and attitude about noise and hearing conservation behavior and hearing loss among 355 study subjects from March, 1998 to June, 1998. The results were as follows; We extracted following 5 factors from 26 questionnaire items of knowledge and attitude about noise; knowledge of noise and concern to the control noise (factor 1), general perceived susceptibility (factor 2), relative perceived susceptibility compared with colleagues(factor 3), concern to the hearing protective devices(factor 4), concern to the hearing and noise assessment (factor 5). Knowledge and attitude factors affecting the hearing conservation behavior were general perceived susceptibility in the case of wearing hearing protective devices and knowledge of noise and concern to the control noise in the case of suggestion for hearing conservation. But, in the case of intentional avoiding noise exposure, concern to the hearing protective devices was a significant factor with concern to the hearing and noise assessment. Knowledge and attitude factors affecting hearing loss in 1 kHz were relative perceived susceptibility compared with colleagues and concern to the hearing protective devices, and in 4 KHz were relative perceived susceptibility compared with colleagues and general perceived susceptibility.

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  • Relationship between occupational injuries and the provision of safety and health information: data from the 4th Korean working conditions survey
    Ju-il Seo, Gab-Sik Shin, Min Gi Kim, Young-Sun Min
    Annals of Occupational and Environmental Medicine.2018;[Epub]     CrossRef
  • The Research of Safety Effects by using a Hearing Protection(Ear Plug) in the Military
    Sung Ho Hwang, Myo Kyoung Joo, Jae Bum Park
    Journal of the Korean Society of Safety.2013; 28(4): 103.     CrossRef
  • Predictors of Hearing Protection Behavior Among Power Plant Workers
    Youngmi Kim, Ihnsook Jeong, Oi-Saeng Hong
    Asian Nursing Research.2010; 4(1): 10.     CrossRef
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Normative Data of Grip and Pinch Strength for Screening of Cumulative Trauma Disorders
Chung Yill Park, Hyeon Woo Yim, Jung Wan Koo, Byoung Yong Ahn, Young Mann Baag, Kang Sook Lee
Korean Journal of Occupational and Environmental Medicine 1998;10(3):362-378.   Published online August 31, 1998
DOI: https://doi.org/10.35371/kjoem.1998.10.3.362
AbstractAbstract PDF
Executing detailed examination for cumulative trauma disorders(CTD) for all the workers with repetitive operators is not desirable considering the cost-effectiveness. Screening test with subjective symptoms, physical examination and hand strength test to detect the proper subject for secondary detailed examination is needed. The purpose of this study was to determine normal values for grip and pinch(tip, lateral and palmar) strength to be used as a screening tool for CTD. Total of 1,018 healthy subjects without related past occupational or medical history were examined with Jamar dynamometer and pinch gage. Each hand was checked twice in a posture recommended by American Society of Hand Therapists, and higher value was accepted. The results were as follows, 1. The mean grip strength of right hand in right-handed man was 47.7 kg, and 27.2 kg in woman. The mean tip pinch strength of right hand in right-handed man was 6.2 kg, and 3.9 kg in woman. The mean lateral pinch strength was 9.0 kg in man, and 5.5 kg in woman. And the mean palmar pinch strength was 9.3 kg in man, and 6.9 kg in woman. There was no significant differences in dominant hand power according to the right or the left hand dominances. 2. Selecting 10 percentile value for screening criteria for CTD, 10 percentile value of trip strength was 38 kg in man and 20 kg in woman. And that of tip pinch strength was 4 kg in man and 2 kg in woman, lateral pinch strength was 6 kg and 4 kg each, palmar pinch strength was 6 kg and 5 kg each. 3. Grip and all three pinch strengths of man showed positive correlation with age, height and weight, but in the cases of woman, only grip strength showed positive correlation with height and weight. 4. In cases of right-handed persons, dominant hand showed higher grip strength compared to the contralateral hand in 70.9% of males, and 72.9% of females. And the mean differences of bilateral grip strength was 2.7 kg(5.2%) in male, and 1.7 kg(5.7%) in female. But in the cases of left-handed persons, dominant hand did not show the significant difference in strength compared to the contralateral hand.

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  • Comparison of Task Performance, Hand Power, and Dexterity with and without a Cock-up Splint
    Moonyoung Chang, Nam-Hae Jung
    Journal of Physical Therapy Science.2013; 25(11): 1429.     CrossRef
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An Association between Brain MRI and Neurologic Findings in Welders Exposed to Manganese Fume
Hyeon Woo Yim, Ji Hong Kim, Young Gyu Phee, Jung Wan Koo, Kang Sook Lee, Chung Yill Park, Jeong Wook Lee, Si Ryung Han, Hye Suk Jang
Korean Journal of Occupational and Environmental Medicine 1998;10(2):161-171.   Published online May 31, 1998
DOI: https://doi.org/10.35371/kjoem.1998.10.2.161
AbstractAbstract PDF
This study was carried out to investigate the relationship between brain magnetic resonance imaging (MRI) and neurological findings in welders exposed to manganese fume. Thirty five welders from a bus manufacturing factory who were occupationally exposed to low dose manganese fume were examined. We collected the information on the demo graphic factors and welding careers. Laboratory investigations included blood and urine manganese concentration and blood chemistry. Brain MRI was checked, and high signal intensity of the globus pallidus was graded from 0 to 3 compared to the white matter of the frontal lobe. Neurologic examination wart carried out. The results were as follows ; 1. The mean age of workers was 48.3+/-5.7 years, mean duration of welding was 21.4 +/-5.6 Years. 2. On brain MRI, high signal intensity in the globes pallidus was observed in 27 workers (77.1%) Among them, 18 cases (66.7%) showed remarkably high signal intensity (grade 2) Mean concentration of blood manganese was higher in those with high signal intensity and correlated to the grade of high signal intensity (p=0.02) 3. On neurologic examination, no workers showed the finding of typical parkinsonism. But 11 workers (31.4%) showed subtle neurological abnormalities such as gait without associated arm movement, postural instability, intention tremor, and so on. Blood manganese concentration of neurologically abnormal group was 2.4+/-0.7 microgram/dL, which was significantly higher, compared to 1.8+/-0.7 microgram/dL of neurologically normal group (p=0.03). 4. Among 27 workers who showed high signal intensity on brain MRI, 10 workers (37%) were neurologically abnormal. Higher grade of signal intensity on globus pallidus showed higher rate of neurologic abnormality (p<0.05) Especially postural instability and gait without associated arm movement were prominent findings. These bindings suggest that high signal intensity on brain MRI might be associated with a prodromal sign of manganese intoxication. Careful neurologic examination should be tool lowed up on welders showing high signal intensity in the golbus pallidus of brain MRI.

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  • Parkinson's disease in a worker exposed to insecticides at a greenhouse
    Yangwoo Kim, Inah Kim, Jung-Min Sung, Jaechul Song
    Annals of Occupational and Environmental Medicine.2021;[Epub]     CrossRef
  • Association of MRI T1 relaxation time with neuropsychological test performance in manganese- exposed welders
    R.M. Bowler, C-L. Yeh, S.W. Adams, E.J. Ward, R.E. Ma, S. Dharmadhikari, S.A. Snyder, S.E. Zauber, C.W. Wright, U. Dydak
    NeuroToxicology.2018; 64: 19.     CrossRef
  • Occupational Neurological Disorders in Korea
    Eun-A Kim, Seong-Kyu Kang
    Journal of Korean Medical Science.2010; 25(Suppl): S26.     CrossRef
  • State-of-the-Science Review: Does Manganese Exposure During Welding Pose a Neurological Risk?
    Annette B. Santamaria, Colleen A. Cushing, James M. Antonini, Brent L. Finley, Fionna S. Mowat
    Journal of Toxicology and Environmental Health, Part B.2007; 10(6): 417.     CrossRef
  • Sequelae of fume exposure in confined space welding: A neurological and neuropsychological case series
    Rosemarie M. Bowler, Sanae Nakagawa, Marija Drezgic, Harry A. Roels, Robert M. Park, Emily Diamond, Donna Mergler, Maryse Bouchard, Russell P. Bowler, William Koller
    NeuroToxicology.2007; 28(2): 298.     CrossRef
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The Changes of Knowledge, Attitude and Practice about Health Promotion in Workers Taking Group Occupational Health Service for 5 years
Chung Yill Park, Kang Sook Lee, Jung Wan Koo, Hyeon Woo Yim, Jeong Ah Kim, Byung Yong Ahn
Korean Journal of Occupational and Environmental Medicine 1998;10(2):203-213.   Published online May 31, 1998
DOI: https://doi.org/10.35371/kjoem.1998.10.2.203
AbstractAbstract PDF
Before and after conducting the health promotion program by group occupational health service during 5 years, we surveyed knowledge, attitude and practice about general health(30 items) and occupational health (30 items) among 25 small and medium scale industry workers (before : 355 workers, after : 279 workers) for evaluation of effectiveness. The scores of knowledge for smoking, drinking, cholesterol, mental stress, management of hypertension, and risks in younger or women workers were significantly increased after conducting group occupational health service. The scorers of attitude for controlling of fatty food consumption and cleaning workplace and bathing for health and that of practice for taking the periodic health examination and choking blood pressure were significantly increased but most of items in attitude and practice didn't be changed after services. According to sex, the scorers of men were significantly increased in knowledge of general health, but there were not significant differences in age, job status and work duration group. In conclusion, through the group occupational health service during 5 years, only the scores of knowledge in general health were increased. It suggested that the effective program which can change workers' attitude and practice for health promotion, should be developed and conducted in small and medium scale industry workers.

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  • The change of knowledge, attitude and practice on musculoskeletal diseases after exercise program in an electronic parts manufacturing company
    Jung-Wan Koo, Ki-Yang Kim
    International Congress Series.2006; 1294: 143.     CrossRef
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Relationship Between Mineral Fiber-Induced Pulmonary Tissue Reaction and MIP-2
Kyoung Ah Kim, Young Lim, Dong Won Lee, Heung Nam Kim, Hwang Sin Chang, Ji Hong Kim, Hwa Suck Suh, Chung Yill Park, Im Goung Yun
Korean Journal of Occupational and Environmental Medicine 1997;9(4):650-658.   Published online December 31, 1997
DOI: https://doi.org/10.35371/kjoem.1997.9.4.650
AbstractAbstract PDF
The pulmonary recruitment and activation of inflammatory cells, in particular, neutrophils is thought to contribute to lung injury resulting from dust exposure. MIP-2 (macrophage inflammatory protein-2) which is a member of C-X-C chemokine plays a key role in neutrophil recruitment to sites of tissue injury. Especially, mineral fiber induced pulmonary response is as a model for the neutrophil recruitment. Therefore, we evaluated the distribution of MIP-2 expression in lung tissue of mineral fiber exposed rat using immunohistochemical study and the relationship between degree of inflammation of lower respiratory tract and MIP-2 expression. Total cell counts in bronchoalveolar lavage (BAL) fluid in mineral fiber-exposed group were markedly increased compared with each control group even not in ceramic fiber group. Number of neutrophil in BAL fluid in mineral fiber-exposed group were markedly increased compared with each control group until 4th week but except ceramic fiber group. In chrysotile group, number of neutrophil in BAL fluid were markedly increased compared with control group at 8th week. Lung tissue instilled with all kinds of mineral fibers showed remarkable developments of bronchus associated lymphoid tissue (BALT) and small multiple granulomas but not for ceramic fiber group. In chrysotile group, multiple granuloma and inflammatory change were more profuse response compared with other groups. MIP-2 was predominently expresses in epithelial cells of bronchioles and bronchus and was express also found in macrophages with lung section at 1 week after fiber instillation. Small amount of epithelial cell associated MIP-2 was present in chrysotile at 8 week group. But MIP-2 was not seen in epithelial cells and macrophages in the lung tissue instilled with crocidolite, ceramic fiber and glass fiber at 8 weeks. Our finding suggest that MIP-2 is predominantly expressed in bronchial epithelial cells of lung from mineral fiber-exposed rat and correlated with inflammatory cell, especially neutrophil, recruitment and tissue reaction. And we documented that MIP-2 expression and neutrophil recruitment in man-made vitreous fiber-exposed rat, especially glass fiber, less than chrysotile.

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The Effect of Hydroxyl Radical Generation on the Cytotoxicity of Alveolar Macrophage and Lipid Peroxidation of Erythrocyte Membrane by Mineral Fibers
Kyoung Ah Kim, Young Lim, Ji Hong Kim, Hwang Sin Chang, Chung Yill Park, Im Goung Yun, Min Hwa Oh
Korean Journal of Occupational and Environmental Medicine 1997;9(3):401-410.   Published online October 31, 1997
DOI: https://doi.org/10.35371/kjoem.1997.9.3.401
AbstractAbstract PDF
No abstract available.

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The Stress Level According to the Working Status in the Migrant Workers
Myung Hee Lee, Chung Yill Park, Jung Wan Koo, Hyeon Woo Yim
Korean Journal of Occupational and Environmental Medicine 1997;9(2):309-319.   Published online June 30, 1997
DOI: https://doi.org/10.35371/kjoem.1997.9.2.309
AbstractAbstract PDF
The number of foreign workers, which has increased since 1989, can be classified into industrial trainees and illegal migratory workers. As of January 1995, the official number of foreign workers reached 49,805 according to the Ministry of Labor. But the real number is estimated to be around 100,000 and industrial trainees are 22,583 among them. The stress induced by the culture shock, 3D (dirty, difficult and dangerous) working conditions, and illegal status of the foreign workers is greater than that of regular Korean workers. By using a psychological well-being index (PWI) measuring stress on 144 foreign workers, it was revealed that 68 people experienced "high risk stress", 76 "latent stress", and the average score was 62.8. The overall stress level was very high. Considering the distribution of high risk stress group and latent stress group by socio-demographic factors, the percentage of high risk stress group was higher among workers whose contract periods are less than 2 years than among workers whose contract periods are longer than 2 years. And the percentage of high risk stress group was higher when the number of workers at factory becoming larger, and also higher among workers who can not communicate well than among workers communicate well. After having a multiple stepwise regression analysis to find the socio-demographic factors which influence the PWI score, we found that the PWI score goes higher when the contract period is becoming shorter and the work hours is becoming longer, and these two factors are able to explain the score to the level 16.3%.

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    Ohwi Kwon, Ji-Hun Song, Jeong-Ok Kong, Seong-Won Ma, Young Shin Lee, Joonho Ahn
    Safety and Health at Work.2023; 14(3): 267.     CrossRef
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Effect of Aldehyde dehydrogenase2 (ALDH2) Genotypes in Urinary Hippuric Acid Excretion as a Biological Exposure Index of Toluene
Seong Sil Chang, Chung Yill Park, Kang Sook Lee, Young Man Roh
Korean Journal of Occupational and Environmental Medicine 1996;8(3):454-465.   Published online December 31, 1996
DOI: https://doi.org/10.35371/kjoem.1996.8.3.454
AbstractAbstract PDF
We investigated toluene exposure level, urinary hippuric acid concentrations, subjective symptoms and genotype of ALDH2 DNA in 134 exposed workers and 53 nonexposed workers for evaluating the effect of ALDH2 polymorphism on toluene metabolism and urinary hippuric acid concentration as biological exposure indices (BEI) of toluene. The results were as follows; 1. The percentage of inactive genotype of ALDH2 in exposed workers was lower than that of exposed (P=0.081). 2. The percentages of exposed workers with inactive genotype did not have any significant difference by the increase of toluene exposure level or work duration. 3. The frequency of drinking, monthly and maximum amount of alcohol intake in workers with normal genotype were significantly higher than those with inactive genotype. 4. The urinary hippuric acid concentration of nonexposed workers ,with inactive genotype was significantly lower than that with normal genotype. Under 100 ppm of toluene, similar but statistically insignificant trends were found, while above that concentration of toluene, reverse but statistically insignificant trends were found. 5. The number of acute and chronic subjective symptoms were increased positively with the concentration of toluene in workers with normal genotype, but ho such trends were found in workers with inactive genotype. 6. The result of simple linear regression between toluene and urinary hippuric acid concentrations showed a very significant positive linear relation-ship. The mean hippuric acid concentration of nonoccupational exposure was 0.289+/-0.227 (0.062-0.516) g/l. Toluene exposure level unable to discriminate with nonoccupational exposure estimated from regression equation, it range from 7.29 to 9.87 ppm. Considering above all things, it was useful to estimate the exposure level of toluene by means of analysing urinary hippuric acid concentration in both genotype workers, but the biological exposure indices (BEI) of both genotypes were different from each other. The BEI of the total exposed workers was 2.76 g/ I, which was lower than current criteria 3.0g/ I (2.5 g/g Cr), and it also suggest that the BEI for the exposed workers in our country be lowered to the appropriate level after further study.

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  • Effects of Factors Associated with Urine Hippuric Acid Correction Values in Urinary Creatinine by HPLC and Jaffe Method and Specific Gravity HPLC Jaffe Method
    Key-Young Kim, Jong-Gyu Kim, Ki-Nam Yoon, Wha-Me Park, Hun-Hee Park
    Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(4): 493.     CrossRef
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Comparative Validity Study of Body Fat Assessment Methods Available in the Work Places
Kyong Soo Kim, Sun Myeong Ock, Chan Hee Song, Whan Suk Choi, Won Chul Lee, Chung Yill Park, Seung Hee Lee, Jae Goo Lee, Hong In Kim
Korean Journal of Occupational and Environmental Medicine 1996;8(3):535-545.   Published online December 31, 1996
DOI: https://doi.org/10.35371/kjoem.1996.8.3.535
AbstractAbstract PDF
No abstract available.

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  • Changes in Blood Pressure, Blood Glucose, and Lipid Profile Caused by Changes of Weight, Percent Body Fat, and Waist Circumference in Adult Men with Normal Weight and Waist Circumference
    Ho Chun Choi, Hyun Jin Kim, Seong Jun Min, Kiheon Lee, Kyung Woo Kim, Seung Min Oh, Tae Woo Yoo
    Korean Journal of Family Medicine.2010; 31(6): 430.     CrossRef
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Pressure Pain Threshold of Shoulder Muscles in VDT Workers
Byoung Soon Shin, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 1996;8(1):15-26.   Published online February 29, 1996
DOI: https://doi.org/10.35371/kjoem.1996.8.1.15
AbstractAbstract PDF
This study was carried out for evaluating the usefullness of pressure pain threshold as an objective test on shoulder muscles in VDT workers. Subjective symptoms, frequency and intensity of pain complaint were investigated by questionnaire method and objective tests, trigger point and pressure pain threshold of 14 shoulder muscles of dominant and nondominant side each, were performed by physical examination and using pressure algometer on 44 VDT workers (more than 2hrs a day) and 20 controls. And work status including work duration, daily work hours and continuous work hours per one time was also surveyed by questionnaire method. The relations among these items were analysed. Results were as follows; 1. The prevalences of shoulder pain in VDT workers and controls were 72.7% and 50.0%. The mean of pain frequency category scale was not significantly different between 2 groups, while the mean of pain intensity category! scale in VDT workers was higher than that in controls. The trigger point in VDT workers showed the highest frequency in the upper trapezius muscle which followed by the levator scapular muscle. And pressure pain thresholds of VDT workers were significantly lower than those of controls in all 14 shoulder muscles. 2. In VDT workers, the category scales of pain frequency and intensity during last one week in shoulder pain complaint group at the time of investigation were significantly higher than those in non complaint group. And the pressure pain thresholds of nondominant levator scapular, bilateral lower trapezius, nondominant posterior deltoid and nondominant pectoralis major muscles were significantly lower in complaint group. 3. The pressure pain thresholds of bilateral upper trapezius, levator scapular and lower trapezius muscles in VDT workers with trigger point at shoulder muscles were significantly lower than those in VDT workers without trigger point. 4. In terms of work duration, the pain frequency category scale during last one week of '5 years and more' group was significantly higher than that of 'less than 5 years' group, while pain intensity category scale. and pressure pain threshold were showed no significant difference. 5. In terms of daily work hour, pressure pain thresholds of bilateral upper trapezius, nondoininant levator scapular, dominant anterior deltoid, dominant posterior deltoid, dominant supraspinatus, and nondominant pectoralis major of 4 hours and more' group were significantly lower than those of 'less than 4 hours group, while category scales of pain frequency and intensity during last one week were showed no significant difference. 6. In terms of continuous work hour, the frequency and intensity category scale was significantly higher and pressure pain thresholds of dominant upper trapezius, bilateral levator scapular and dominant lower trapezius muscles were significantly lower in 2 hours and more' group than 'less than 2 hours' group. In conclusion, in order to evaluate more objectively the musGuloskeletal. impairment by VDT work it is recommended that objective tests such as trigger point and pressure pain threshold are performed in addition to survey of subjective symptoms. And also more consideration on daily work hour and continuous work hour than total work duration is required.

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  • Changes in the Pelvic Posture and Low Back Pressure Pain Threshold in Response to Smartphone Use in the Sitting Position: A Cross-sectional Study
    Dae-Hee Lee, Hye-Joo Jeon
    Journal of The Korean Society of Physical Medicine.2023; 18(3): 113.     CrossRef
  • Effect of Meridian Muscle Release and the Graston Technique on Pain and Functional Movement in Patients with Myofascial Pain Syndrome of the Shoulder Joint
    Hyo-Ryung Heo, Ho-Young Jang, Dong-Hoon Kim, Ho-Young Kim, Suk-Min Lee
    Journal of The Korean Society of Physical Medicine.2020; 15(1): 85.     CrossRef
  • Effects of Smartphone Use on Muscle Fatigue and Pain and, Cervical Range of Motion Among Subjects With and Without Neck Muscle Pain
    Yoon-Jie So, Young-Keun Woo
    Physical Therapy Korea.2014; 21(3): 28.     CrossRef
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Performances of the WHO Neurobehavioral Core Test Battery among Mal Workers Occupationally Non-exposed to Neurotoxic Agents
Se Hoon Lee, Hyoung Ah Kim, Won Chul Lee, Seong Sil Chang, Kyung Jae Lee, Chung Yill Park, Chee Kyung Chung
Korean Journal of Occupational and Environmental Medicine 1995;7(1):139-151.   Published online February 28, 1995
DOI: https://doi.org/10.35371/kjoem.1995.7.1.139
AbstractAbstract PDF
Five items among neurobehavioral core test battery of World Health Organization, including Santa Ana dexterity, pursuit aiming, digit symbol, simple reaction time, and Benton visual retention, were administered to the workers occupationally non-exposed to neurotoxic agents by operational guide for the WHO neurobehavioral core test battery. Subjects were volunteers from the industrial workers (117) and clerks (40). Detailed occupational history such as exposed agents including noise or vibration, educational level, residence, smoking and drinking habit were recorded. Most of the neurobehavioral tests were correlated with age and educational level. Smoking was correlated with pursuit aiming and digit symbol. Vibration affected pursuit aiming. Job type (industrial workers vs. clerks) and noise exposure did not affected among tested items. Multiple regression analysis was done for establishing predict equation to estimate normal ranges of the tests for male workers. Age was shown to be main independent variable affected for all tests except wrong dot of pursuit aiming. Educational level was also shown to affected most of the tests except Santa ana dexterity and wrong dot of pursuit aiming. Alcohol consumption affected Santa Ana dexterity, non-preferred hand, and smoking affected only wrong dot of pursuit aiming after multiple regression analysis.

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The Effect of Smoking on the Serum Lipid Levels of Male White Collar Workers
Jung Ho Kim, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 1994;6(2):242-251.   Published online September 30, 1994
DOI: https://doi.org/10.35371/kjoem.1994.6.2.242
AbstractAbstract PDF
This study was carried out to evaluate the relations between smoking and serum lipid levels in a group of 1,138 male white collar workers, ages 20 to 69 years. Smoking history on daily smoking amount, duration of smoking and duration of smoking cessation was obtained by questionnaire and was pack year. The levels of seurm lipid such as total cholesterol(TC), high density lipoprotein cholestoerol(HDL), triglyceride(TG), and low density lipoprotein cholesterol(LDL) were measured by enzyme method. We also observed the effects of various variables such as age, education, income, exercise, fasting blood suger, body mass index and alcohol. The correlation, ANOVA and multiple regression analysis were performed using SAS pakege programme. The results obtained were as follows; 1. Age was positively related to TC, TG and LDL; income was positively related to TC and LDL; exercise was positively related to HDL; body mass index was positively related to HC, TG and LDL and was inversely related to HDL; alcohol intake was positively related to HDL and TG. 2. TC, TG and LDL increased and HDL decreased significantly with increasing daily smoking amount, duration of smoking or pack year. 3. The differences found among the various groups by duration of smoking cessation were not significant for the adjust means of TC, HDL, TG and LDL. 4. Multiple regression analysis demonstrated that smoking contributed independently to all serum lipid levels of other variables such as age, education, income, exercise, body mass index, alcohol and fasting blood sugar. However, the contribution rate of smoking to the serum lipid levels was only 1-2%.

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  • Effect of Pork Consumption on Renal and Hematochemical Indices in Workers Occupationally Exposed to Unclean Environments
    Chan-Kyu Han, Jeong-Hae Rho, Bog-Hieu Lee
    Korean Journal for Food Science of Animal Resources.2008; 28(1): 91.     CrossRef
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The Factors associated with Knowledge, Attitude and Practice Regarding Occupational Health Among Small and Medium Scale Industry Workers
Chung Yill Park, Kang Sook Lee, Won Chul Lee, Se Hoon Lee
Korean Journal of Occupational and Environmental Medicine 1994;6(1):42-55.   Published online February 28, 1994
DOI: https://doi.org/10.35371/kjoem.1994.6.1.42
AbstractAbstract PDF
This study was carried out to determine the knowledge(K), attitude(A) and practice(P) on major occupational health problems among small and medium scale industry workers in Kimpo area. We used self-administered questionnairs regarding the emergency treatment on accident, the management of hazardous materials, the work place hygiene, the health risk of young workers and female works, the use of protective device, prevention of occupational disease, the periodic physical examination and the occupational health administration. The results obtained were as follow; 1. There were significant differences among age groups on the KAP. The teenage group had the lowest scores. As the age increased, total mean scores of KAP were increased concurrently, and this trend was statistically significant. 2. There was significant differences between male and female subjects on total mean scores of knowledge. But on that of the attitude and practice, there was no significant difference between male and female subjects. 3. As the size of enterprise increased, the mean scores of knowledge, attitude and practice were increased, but this trend was not statistically significant. 4. As the work duration increased, the mean scores of the attitude and the practice were increased. But the mean scores of the knowledge did not show this trend. 5. The white collar workers had significant higher scores than blue collar workers on knowledge, but there were not significant differeneces on attitude and practice. 6. The significantly associated variables on knowledge were work status and sex. On attitude and practice, age and work duration were significantly associated variables, but the degree of association was low. 7. When stepwise multiple regression analysis was done, work status, sex, age were significantly attributed to knowledge, age and sex wwere attributed to attitude, and age was attributed to knowledge, but the coefficient of determination were very low. In conclusion in small and medium scale industry workers, there were weak or no effects of age, sex of enterprise, work duration and work status on knowledge, attitude and practice regarding occupational health. So, it is suggested that all the members of the workers should be included in health education program for the workers.

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  • Effects of a Problem-Based Learning Education Program for Occupational Health Nursing Using Smart Learning on Occupational Health Knowledge and Nursing Professionalism
    Kyung Jin Hong
    Healthcare.2024; 12(7): 737.     CrossRef
  • Participation inequality in the National General Health Examination based on enterprise size
    Young Joong Kang, Jong Heun Park, Huisu Eom, Bohwa Choi, Seyoung Lee, Ji-Won Lee, Jun-Pyo Myong
    Annals of Occupational and Environmental Medicine.2017;[Epub]     CrossRef
  • A Predictive Model of Workers' Quality of Life
    Bok-Im Lee, Hye-Sun Jung
    Korean Journal of Occupational Health Nursing.2011; 20(1): 35.     CrossRef
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Factors related to post-management performance of workers with general disease in small and medium sized enterprises
Soo Geun Kim, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 1993;5(2):274-282.   Published online September 30, 1993
DOI: https://doi.org/10.35371/kjoem.1993.5.2.274
AbstractAbstract PDF
No abstract available.

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  • Effectiveness of workers’ general health examination in Korea by health examination period and compliance: retrospective cohort study using nationwide data
    Huisu Eom, Jun-Pyo Myong, Eun-A Kim, Bohwa Choi, Soon Woo Park, Young Joong Kang
    Annals of Occupational and Environmental Medicine.2017;[Epub]     CrossRef
  • A Study on an Evaluation Tool for the Management of Liver Disease by Occupational Health Management Agencies
    Moon‐Hee Jung, Chung‐Min Cho
    Journal of Occupational Health.2000; 42(2): 72.     CrossRef
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Epidemiological survey on the environment and health status in asbestos factories
Im Goung Yun, Chung Yill Park, Won Chul Lee, Young Lim, Kyung Ah Kim
Korean Journal of Occupational and Environmental Medicine 1993;5(1):137-151.   Published online February 28, 1993
DOI: https://doi.org/10.35371/kjoem.1993.5.1.137
AbstractAbstract PDF
No abstract available.

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  • Ovarian cancer in a former asbestos textile factory worker: a case report
    Sunwook Park, Jaechan Park, Eunsoo Lee, Huisu Eom, Mu Young Shin, Jungwon Kim, Dongmug Kang, Sanggil Lee
    Annals of Occupational and Environmental Medicine.2018;[Epub]     CrossRef
  • A Study on Characteristics of Airborne Asbestos Concentrations Using PCM and TEM in Life Environment Surroundings of Seoul
    Jinhyo Lee, Suhyun Lee, Jihui Kim, Seokryul Oh, Jinho Shin, Seokwon Eom, Youngzoo Chae, Jinsook Lee, Jayong Koo
    Journal of Korean Society of Environmental Engineers.2013; 35(9): 613.     CrossRef
  • Asbestos-related Diseases among Asbestos Textile Factory Workers and Residents Around the Factory
    Dong-Mug Kang, Dong-Chul Gu, Kun-Hyung Kim
    Journal of the Korean Medical Association.2009; 52(5): 482.     CrossRef
  • Compensation and Diagnosis of Asbestos Related Disease
    Soo-Geun Kim
    Korean Journal of Family Medicine.2009; 30(5): 335.     CrossRef
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The effect of smoking and alcohol intake on routine laboratory tests in male white collor workers
Kang Sook Lee, Yun Chul Hong, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 1992;4(2):199-211.   Published online October 31, 1992
DOI: https://doi.org/10.35371/kjoem.1992.4.2.199
AbstractAbstract PDF
No abstract available.

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  • Association of Work-related Characteristics and Hypertension among White Collar Workers
    Chae-Bong Kim, KyooSang Kim
    Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(3): 418.     CrossRef
  • Relationship Between Life Style and Serum Lipid Levels in Adults using Data from Health Examination
    Su-Jin Oh, Eun-Sook Shin, Young-Chae Cho
    Journal of the Korea Academia-Industrial cooperation Society.2014; 15(8): 5009.     CrossRef
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A reliable method for the adjustment of urinary delta-aminolevulinic acid concentration
Jung Wan Koo, Chung Yill Park
Korean Journal of Occupational and Environmental Medicine 1992;4(1):105-109.   Published online February 29, 1992
DOI: https://doi.org/10.35371/kjoem.1992.4.1.105
AbstractAbstract PDF
No abstract available.

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Visual display terminal work during pregnancy and the risk ofspontaneous abortion
Kang Sook Lee, Yun Chul Hong, Chung Yill Park, Kwan Ho Meng
Korean Journal of Occupational and Environmental Medicine 1991;3(2):209-215.   Published online November 30, 1991
DOI: https://doi.org/10.35371/kjoem.1991.3.2.209
AbstractAbstract PDF
No abstract available.

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  • The factor affecting job stress and psychosocial well-being of prison officers
    Jung-Wan Koo, Hyun-Jung Kim
    International Congress Series.2006; 1294: 175.     CrossRef
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Manganese exposure in ore crushing
Chung Yill Park, Young Man Roh, Jung Wan Koo, Seung Han Lee
Korean Journal of Occupational and Environmental Medicine 1991;3(1):111-118.   Published online February 28, 1991
DOI: https://doi.org/10.35371/kjoem.1991.3.1.111
AbstractAbstract PDF
No abstract available.

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  • Compensation for Occupational Diseases by Chemical Agents in Korea
    Soon-Chan Kwon, Soo-Yong Roh, Ji-Hoon Lee, Eun-A Kim
    Journal of Korean Medical Science.2014; 29(Suppl): S78.     CrossRef
  • Occupational Neurologic Disorders in Korea
    Yangho Kim, Kyoung Sook Jeong, Yong-Hun Yun, Myoung-Soon Oh
    Journal of Clinical Neurology.2010; 6(2): 64.     CrossRef
  • Occupational Diseases in Korea
    Seong-Kyu Kang, Eun A Kim
    Journal of Korean Medical Science.2010; 25(Suppl): S4.     CrossRef
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A Survey on the Air Pollution of Expressway Tollgates in Korea
Young Man Roh, Chung Yill Park, Chee Kyung Chung, Kwang Mook Lee, Byung Ki Min, Seung Han Lee
Korean Journal of Occupational and Environmental Medicine 1990;2(2):142-152.   Published online August 31, 1990
DOI: https://doi.org/10.35371/kjoem.1990.2.2.142
AbstractAbstract PDF
This survey was carried out from October 16 through October 27, 1989 to evaluate the working environment of expressway tollgate. We measured and analyzed 9 parameters such as total dust, sulfur dioxide, carbon monoxide, nitrogen dioxide and lead in the air together with climatic conditions and traffic volumes at 10 major highway tollgates. The results obtained were as follows: 1. The concentrations of air pollutants at inside and outside of toll booth were 0.7824 and 1.5460 mg/m3 for total dust, 0.034 and 0.094 ppm for sulfur dioxide, 2.2 and 4.3 ppm for carbon monoxide, 0.031 and 0.068 ppm for nitrogen dioxide, 0.0018 and 0.0027 mg/m3 for lead, respectiveively. 2. All air pollutants showed significant association each other except lead and nitrogen dioxide. 3. No relation was observed between air pollutants and traffic volume. 4. Generally speaking, climatic conditions showed no effect on the value of air pollutants both at inside and outside of toll booth. The exceptions were humidity that was related with carbon monoixide outside and air current that was related with lead outside.

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Lead Exposure of Tollgate Workers on Korea Expressway
Chung Yill Park, Jung Wan Koo, Young Man Roh, Seung Han Lee
Korean Journal of Occupational and Environmental Medicine 1990;2(2):134-141.   Published online August 31, 1990
DOI: https://doi.org/10.35371/kjoem.1990.2.2.134
AbstractAbstract PDF
In order to evaluate possible effects of lead exposure, lead absorption and subjective symptoms in the expressway tollgate workers, 147 workers who have benn working at 4 expressway tollgates werer studied. Study variables were blood lead(PbB), urine lead(PbU), delta-aminolevulinic acid in urine (ALAU), coproporphyrin in urine (CPU), zinc protoporphyrin in whole blood (ZPP), hemoglobin, hematocrit, red blood cell count and symtom index of lead exposure. Subjective symptoms, 16 items, were investigated by a physician's interview. The results were as follows: 1. The most prevailing subjective symptom related to lead exposure were reported fatigue (41.5%), follow by abdominal discomfort (26.5%), loss of appetite (23.8%) and numbness (21.0%). 2. The mean air concentrations of lead at inside and outside of tollbooth were 6.8 (0.2~17.9) and 4.8 (0.2~17.5) microgram/m3, respectively. 3. The mean values of lead absorption indices (blood lead, urine lead, delta-aminolevulinic acid, coproporphyrin in urine and zinc protoporphyrin in blood) of workers were 19.99 (4.2~38.9) microgram/ dl, 29.82(6.3~68.6) microgram/l, 1.04(0.17~3.41) mg/l, 30.30(11.6~58.0) microgram/l and 10.51(1.0~31.0) microgram/l, respectively. And the mean values of hemoglobin, hematocrit and red blood cell count were 15.41 (10.2~18.9)g/dl, 45.88(33.9~54.7)%, 497.37(415~591)x10(4)/mm3, respectively. 4. The mean number of positive responses to subjective symptoms(16 items) was 2.08(13%) and tended to decrease with increasing work duration and age. 5. The number of positive responses of subjective symptoms did not show dose-response relationship with lead absorption indices.

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  • Effect of Pork Consumption on Renal and Hematochemical Indices in Workers Occupationally Exposed to Unclean Environments
    Chan-Kyu Han, Jeong-Hae Rho, Bog-Hieu Lee
    Korean Journal for Food Science of Animal Resources.2008; 28(1): 91.     CrossRef
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Cervicobrachial Disorders of Female International Telephone Operators IV. Laboratory studies
Chung Yill Park, Kyung Hwan Cho, Seung Han Lee, In Kim
Korean Journal of Occupational and Environmental Medicine 1990;2(1):50-57.   Published online February 28, 1990
DOI: https://doi.org/10.35371/kjoem.1990.2.1.50
AbstractAbstract PDF
Twenty eight workers selected through our screening criteria were placed under laboratory and orthopadic studies. The results were as follows : 1. The work duration of a subjects, except one case, amounted to more than 5 years. 2. Serum creatinine phosphokinase and aspartate aminotransferase showed significant linear association with positive questionnaire responses. 3. It was suggested rbaf muscle enzyme, rheumatoid factor, cervical radiogram and orthopaedic physical examination are quite helpful in the diagnosis occupational cervicobrachial disorders. However, the value of elect romyographic study was questioned. 4. Finally, it was found 9 out of 290 female international telephone operators needed active intervention in health management as well as work.

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  • Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
    Eun-A Kim, Minori Nakata
    Annals of Occupational and Environmental Medicine.2014;[Epub]     CrossRef
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Cervicobrachial Disorders of Female International Telephone Operators III. Grip Strenghth
Kyung Hwan Cho, Chung Yill Park, Seung Han Lee
Korean Journal of Occupational and Environmental Medicine 1990;2(1):44-49.   Published online February 28, 1990
DOI: https://doi.org/10.35371/kjoem.1990.2.1.44
AbstractAbstract PDF
The grip strength of both hands in 290 female international telephone operators were measured and the relationships between thd grip strength in the major hand and various variables, such as height, weight, age^ subjective symptoms, muscle tenderness, work duration and house work, were observed. The results were as follows: 1. Grip strength was signficantly higher in the rriapr hand than in ihe minor hand. 2. Significantly tower grip strength in the major hand was noted in the musculoskeletal complainants than En the non-complainants. 3. Grip strength in the major hand was signficantly lower In myalgia subjects than in others. 4. Grip strength in the major hand showed significant negative correlation with 'A' response on questionnaire items and number of tender points. 5. Grip strength in the mapr hand showed significant positive correlation with body weight. 6. According to stepwise multiple regression procedures, three major factors, namely, number of 'A' response on questionnaire items, number of tender points and body weight, explained only less than 7% of total variance of grip strength in the major hand.

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  • A Study on Factors Related to Grip and Pinch Strength among Estheticians
    Jeong Hwa Kim, Young Gyu Phee, Sa-Woo Lee
    Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(4): 554.     CrossRef
  • Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
    Eun-A Kim, Minori Nakata
    Annals of Occupational and Environmental Medicine.2014;[Epub]     CrossRef
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Cervicobrachial Disorders of Female International Telephone Operaiors II. Muscle Tenderness and Neurological Tests
Kyung Hwan Cho, Chung Yill Park, Seung Han Lee
Korean Journal of Occupational and Environmental Medicine 1989;1(2):151-159.   Published online November 30, 1989
DOI: https://doi.org/10.35371/kjoem.1989.1.2.151
AbstractAbstract PDF
Physical examinations including muscle tenderness and neurological tests, were performed on two hundred ninety international telephone operators and their relations with work conditions and subjective symptoms were analyzed. The results obtained were as follows: 1. The prevalence of muscle tenderness was significantly higher in the shoulder and the arms than in other parts of body. 2. No difference of prevalence of muscle tenderness was noted according to the age of workers. 3. The prevalence of muscle tenderness on the shoulder and the arms significantly increased after the work duration of 5 years. 4. Muscle tenderness on the arm, the neck and the shoulder were dominant in the right side. 5. The prevalences of paraesthesia on right shoulder and right arm were higher than those on other parts of body. 6. A significant linear association was noted between the number of tender areas and positive response to questions. 7. The prevalences of positive Spurling test and Morley test were higher in the work duration group of 15 years and more. 8. It seemed that muscle tenderness examination and Morley test were more useful for the diagnosis of cervicobrachial disorders.

Citations

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  • Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
    Eun-A Kim, Minori Nakata
    Annals of Occupational and Environmental Medicine.2014;[Epub]     CrossRef
  • Occupational Diseases in Korea
    Seong-Kyu Kang, Eun A Kim
    Journal of Korean Medical Science.2010; 25(Suppl): S4.     CrossRef
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Cervicobrachial Disorders of Female International Telephone Operators I. Subjective Symptoms
Chung Yill Park, Kyung Hwan Cho, Seung Han Lee
Korean Journal of Occupational and Environmental Medicine 1989;1(2):141-150.   Published online November 30, 1989
DOI: https://doi.org/10.35371/kjoem.1989.1.2.141
AbstractAbstract PDF
A questionnaire study was carried out on 290 international telephone operators to find Out their characteristics of musculoskeletal symptoms in relation to work conditions (work posture, work load etc.) and work duration.
Results
were as follows: 1. The C7-earhole angle, the elbow angle, the left arm abduction angle and the right arm abduction angle all did not meet the recommended criteria and, therefore, seemed to have increased the static load of muscles of the neck, the shoulder and the arms. 2. The prevalence of musculoskeletal complaints was higher in the shoulder and the arms which followed by the neck, the lower hack, the hands and fingers, the hack and the lower limbs. 3. The prevalences of musculoskeletal complaints in the hack and the lower hack increased significantly, as the work duration extended over 5 years. 4. In general, the prevalence of musculoskeletal complaints tended to be lower among habitual exercise group than others. 5. In view of the high prevalence of musculoskeletal complaints even among those with short work experience, it seemed necessary to introduce an adequate control program of cervicobrachial disorders from an early stage of employment.

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  • Relationship between simultaneous exposure to ergonomic risk factors and work-related lower back pain: a cross-sectional study based on the fourth Korean working conditions survey
    Jae-Yeop Kim, Ji-Su Shin, Myeong-Seob Lim, Hyeon-Gyeong Choi, Sung-Kyeong Kim, Hee-Tae Kang, Sang-Baek Koh, Sung-Soo Oh
    Annals of Occupational and Environmental Medicine.2018;[Epub]     CrossRef
  • Change in Musculoskeletal Pain in Patients With Work-Related Musculoskeletal Disorder After Tailored Rehabilitation Education: A One-Year Follow-Up Survey
    Dong Hun Lee, Boram Kang, Seungyoung Choi, Taikon Kim, Seong Ho Jang, Kyu Hoon Lee, Mi Jung Kim, Si-Bog Park, Seung Hoon Han
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Relations Between Alcohol Intake and Certain Liver Function Teats in Healthy Adult Male White Color Workers
Chung Yill Park, Won Chul Lee, Chee Kyung, Im Goung Yun, Seung Han Lee
Korean Journal of Occupational and Environmental Medicine 1989;1(1):127-139.   Published online February 28, 1989
DOI: https://doi.org/10.35371/kjoem.1989.1.1.127
AbstractAbstract PDF
We analysed the multivariate relationship between alcohol intake and serum gamma glutamyl-transpeptidase(S-GGTP), aspartate aminotransferase(S-ASAT), alinine aminotransferase(S-ALAT) and age. A group of 1,351 healthy male white color workers aged 18 to 59 years were systematically examined. Weekly alcohol intake and duration was obtained by an interview. The results are as follows: 1. Weekly alcohol intake of 18-29 age groups was significantly less than that of other age group each. And no differences between other age groups can be seen. 2. Statistical analysis of variance showed that the differences found between the various drinking groups was significant for the mean S-GGTP, S-ASAT(P<0.01). 3. From the weekly alcohol intake 180-269 g group, significantly higher values of S-GGTP was found, whereas S-ASAT and S-ALAT were not. 4. Statistical chi-square trends test showed that the difference found between the various drinking groups was significant for the percentage of abnormal S-GGTP, S-ASAT and S-ALAT (P<0.01). 5. Fifty-five percent of the raised values of S-GGTP found between had no identifiable clinical or biochemical abnormality apart from a raised S-GGTP. Fifty-six percent of these otherwise normal subjects came from 31.7% who were moderate or heavy drinkers. It is suggested that the determination of S-GGTP might have value as a screening test for alcoholism. 6. Significant correlations have been found between weekly alcohol intake and corresponding S-GGTP, S-ASAT and S-ALAT values, 0.33, 0.20 and 0.26. respectively. 7. Multiple regression analyses confirmed the superiority of S-GGTP over S-ALAT and S-ALAT as a laboratory marker of alcohol intake and showed the advantage of using S-GGTP and S-ALAT together.

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Causative Factors of Occupational Injuries in Manufacturing Industries in Korea
Seung Han Lee, Chung Yill Park, Chee Kyung Chung, Kyu Sang Cho
Korean Journal of Occupational and Environmental Medicine 1989;1(1):109-126.   Published online February 28, 1989
DOI: https://doi.org/10.35371/kjoem.1989.1.1.109
AbstractAbstract PDF
No abstract available.

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