Annals of Occupational and Environmental Medicine

Chul Ho Lee

5 Articles

The Effect of a Stretching Exercise on Myofascial Pain Syndrome Patients in Small and Medium Sized Industries: Jung Wook Lim, Young Jun Kwon, Tae Won Jang, Jong Heon Lee, In Seok Kim, Sang Cheol Ryu, Jae Hoon Roh, Jong Uk Won, Bong Suk Cha, Chul Ho Lee; Korean Journal of Occupational and Environmental Medicine 2010;22(4):307-315. Published online December 31, 2010; DOI: https://doi.org/10.35371/kjoem.2010.22.4.307

OBJECTIVES
This study was conducted to identify the effect of a stretching exercise on myofascial pain syndrome patients that work in small and medium-sized industry.
METHODS
Questionnaires surveys including general characteristics, work-related characteristics, and musculoskeletal symptoms on neck and shoulder area was administered to 393 subjects who worked in small and medium sized industries. Symptomatic workers were examined to identify whether they had myofascial pain syndrome (MPS). Of the 393 subjects, 108 MPS patients performed 6 weeks stretching exercise program. Intensity of pain was estimated with visual analogue scales (VAS). All patients were interviewed to estimate their compliance to stretching exercise program.
RESULTS
Of the 393 workers, 119 workers were diagnosed with MPS of the neck and shoulder. Post-exercise VAS was significantly reduced compared to pre-exercise VAS (p<0.05). High compliance patients to stretching exercise were more effective to exercise therapy (OR 2.89, 95% CI 1.19~7.04), and overtime workers were less effective to exercise therapy (OR 0.41, 95% CI 0.17~0.95).
CONCLUSION
The Stretching exercise program was identified to be effective in MPS patients in small and medium-sized industries. It is recommended that workers with MPS in small and medium-sized industries practice a well-designed stretching exercise program, and avoid overtime work.

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Effect of Resistance Exercise Program for Middle-Aged Women with Myofascial Pain Syndrome on Shoulder Pain, Angle of Shoulder Range of Motion, and Body Composition Randomized Controlled Trial, RCT
WonJong Kim, Myung-Haeng Hur
Journal of Korean Academy of Nursing.2020; 50(2): 286. CrossRef
Related Factors to Musculoskeletal Discomfort Symptoms on Some Middle·High school Teachers
Jae-Yoon Lee, Byeong-Yeon Moon, Youn-Hong Jeong, Hyun-Kyung Woo
Journal of the Korea Academia-Industrial cooperation Society.2012; 13(1): 264. CrossRef
The Effects of Stabilization Exercise and Stretching Exercise on Muscle Strength and Pain of Patients with Lower Back Pain
Kwang-Il Kwag, Jae-Heon Lim
Journal of the Korean Academy of Clinical Electrophysiology.2011; 9(2): 39. CrossRef

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Health Effect Assessment on Volunteers Involved in the Cleanup Operation Following the Hebei Spirit Oil Spill Along the Taean Coast, Korea: Chul Ho Lee, Kyung Hwa Park, Min Jung Lee, Wook Hee Choi, Heon Kim, Choong Hee Park, Dae Seon Kim, Seung Do Yu; Korean Journal of Occupational and Environmental Medicine 2010;22(1):11-19. Published online March 31, 2010; DOI: https://doi.org/10.35371/kjoem.2010.22.1.11

Abstract PDF

OBJECTIVE: The objetive of this study is to assess the level of oxidative stress by the exposure to volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs) in volunteers who cleaned up the crude oil spilled from the Hebei Spirit on the Coast of Taean County, Korea.
METHODS
The study subjects were 46 volunteers and 37 controls from the National Institute of Environmental Research. A self-administered questionnaire was used for volunteers to examine their working environment and health effects. Urinary concentrations of hippuric acid, 1-hydroxypyrene, and 2-naphthol were measured as exposure markers for VOCs and PAHs, and urinary thiobarbituric acid reactive substances (TBARS) and 8-hydroxydeoxyguanosine (8-OHdG) levels were measured as oxidative stress markers.
RESULTS
Sixty-four percent of the respondents presented a variety of symptoms, including sore eyes and throat, nausea, dizziness, headache, low back pain, and leg pain after participating in the cleanup operation. Urinary 2-naphthol and TBARS concentrations appeared higher in the volunteers. Univariate and multivariate analyses showed that urinary TBARS and 8-OHdG levels were positively correlated with urinary 2-naphthol and 1-hydroxypyrene concentrations respectively, especially among the volunteers.
CONCLUSIONS
The result implies that participating in cleanup work of oil spills may have a possibility to induce oxidative damage by exposure to PAHs in crude oil.

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Evaluation of performance of hybrid fiber-reinforced self-compacting concrete using non-destructive testing techniques
Shailja Bawa, Pravez Alam, Shivam Saini
Innovative Infrastructure Solutions.2023;[Epub] CrossRef
Survey of airborne organic compounds in residential communities near a natural gas compressor station: Response to community concern
Kaitlin A. Vollet Martin, Elizabeth Z. Lin, Timothy J. Hilbert, Krystal J. Godri Pollitt, Erin N. Haynes
Environmental Advances.2021; 5: 100076. CrossRef
Human health and ecological assessment programs for Hebei Spirit oil spill accident of 2007: Status, lessons, and future challenges
Dawoon Jung, Jung-Ah Kim, Myung-Sook Park, Un Hyuk Yim, Kyungho Choi
Chemosphere.2017; 173: 180. CrossRef
Health Effect Assessment on Cleanup Workers of an Oil Spill in Yeosu
Geunbae Kim, Tack Shin Kang, Mira Yoon, Hyejung Jo, Youngkyung Joo, Seung Do Yu, Bo Eun Lee
Korean Journal of Environmental Health Sciences.2016; 42(6): 385. CrossRef
Association between Metabolic Syndrome and Participation in Clean-up Work at the Hebei Spirit Oil Spill
Ik-Jin Lee, Bong-Ki Jang, Jong-Wha Lee, Bu-Soon Son, Hae-Kwan Cheong, Mina Ha, Young-Hyun Choi, Myungsook Park
Korean Journal of Environmental Health Sciences.2015; 41(5): 335. CrossRef
Changes of Eating Habits of the Residents of Taean, Korea after the Herbei Oil Spill Accident Based on Focus Group Interviews
Ji Hyun Park, Sung Ok Kwon, Woo Cheol Jeong, Jong Il Huh, Se-Young Oh
Korean Journal of Community Nutrition.2011; 16(4): 466. CrossRef

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Effect of Genetic Polymorphisms of CYP2E1 and ALDH2 on the Relationship between the Levels of Urinary 8-Hydroxydeoxyguanosine and t,t-Muconic Acid: Yong Dae Kim, Jong Won Kang, Sang Yong Eom, Yan Wei Zhang, Sung Hoon Kim, Eun Young Kim, Chul Ho Lee, Jai Dong Moon, Heon Kim; Korean Journal of Occupational and Environmental Medicine 2007;19(2):164-170. Published online June 30, 2007; DOI: https://doi.org/10.35371/kjoem.2007.19.2.164

Abstract PDF: OBJECTIVES
This study was performed to investigate the effect of genetic polymorphisms on the oxidative genetic damage caused by benzene exposure in workers.
METHODS
We measured urinary t,t-muconic acid levels as a biomarker for benzene exposure and measured the level of urinary 8-OHdG to assess oxidative DNA damage in benzene-exposed healthy male workers. Genetic polymorphisms of ALDH2 and CYP2E1 were determined by TaqMan assay. We estimated Pearson correlation coefficients between urinary t,t-muconic acid and 8-OHdG according to the genetic polymorphisms of CYP2E1 and ALDH2.
RESULTS
There was a significant relationship between urinary t,t-muconic acid and 8-OHdG concentrations in overall subjects (R=0.532, p<0.001). Smokers showed a higher correlation coefficient between the markers than nonsmokers did (R=0.520 vs. 0.010). Individuals with CYP2E1 c1/c1 genotype also showed a higher correlation coefficient between them than those with CYP2E1 c1/c2 or c2/c2 genotypes (R=0.670 vs. -0.145). In multiple linear regression analysis including smoking status, sorbic acid intake, age and genetic polymorphisms of CYP2E1 and ALDH2 as the independent variables, urinary t,t-muconic acid showed a significant association with urinary 8-OHdG.
CONCLUSIONS
There was a significant correlation between urinary 8-OHdG and urinary t,t-muconic acid in benzene-exposed workers. This relationship was affected by genetic polymorphisms of CYP2E1and ALDH2.

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The effect of Smoking and Residential environment on Urinary 2-naphthol: Jee Na Lee, Jong Han Leem, Shin Goo Park, Joo Yeun Shin, Kwan Hee Lee, Yun Chul Hong, Hun Kim, Chul Ho Lee; Korean Journal of Occupational and Environmental Medicine 2004;16(1):82-91. Published online March 31, 2004; DOI: https://doi.org/10.35371/kjoem.2004.16.1.82

Abstract PDF: OBJECTIVES
To evaluate the association of urinary 2-naphthol level and air pollution caused by exposure to smoking, traffic and residential factors.
METHODS
The study subjects consisted of 300 university students in Incheon. The questionnaires concerning subject characteristics, smoking amount, traffic, distance between housing and main road, heating and cooking fuel including urinary cotinine levels were checked.
RESULTS
There was not any significant association between urinary 2-naphthol level and age, sex, body mass index, distance from mainroad, traffic, heating and cooking fuel. The urinary 2-naphthol level was higher in smokers or high urinary cotinine level group(p=0.0001)than in nonsmokers or low urinary cotinine group. After adjusting for age, sex, and body mass index in the basic model, the 2-naphthol level was also higher in the smokers or high urinary cotinine level group, too(p<0.0005). The model included both traffic and residential variables and it had a good fitness as compared to other models.
CONCLUSIONS
It has been known that as one of PAH metabolites, urinary 2-naphthol is a respiration-selective biological marker. We showed that tabacco smoking has a much stronger effects on urinary 2-naphthol levels than when subjects were exposed to air pollution, such as traffic, and other residential factors at the same time.

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Effects of occupation, life style and genetic polymorphism of CYP1A1, GSTM1, and GSTT1 on urinary 1-hydroxypyrene and 2-naphthol concentration: Heon Kim, Hyun Sul Lim, Jong Won Kang, Holik Lee, Yong Dae Kim, Hong Mei Nan, Chul Ho Lee; Korean Journal of Occupational and Environmental Medicine 1999;11(4):546-556. Published online December 31, 1999; DOI: https://doi.org/10.35371/kjoem.1999.11.4.546

Abstract PDF

OBJECTIVES
This study was performed to describe the distribution patterns of urinary 1-hydroxypyrene (1-OHP) and 2naphthol concentration in coke oven workers and workers not occupationally exposed to polycyclic aromatic hydrocarbons (PAH), and to determine the effects of occupation life style, and genetic polymorphism of cytochrome P450 1A1 (CYP1A1), glutathione Stransferase mu 1 (GSTM1) and theta 1 (GSTT1) on urinary 1- OHP and 2-naphthol concentration.
METHODS
The study subjects were 19 coke oven workers and 156 shipyard workers. A questionnaire was used to obtain data about detailed smoking and food intake history. Urinary 1OHP and 2naphthol concentration and genetic polymorphism of CYPIA1, GSTM1, and GSTT1 were analyzed.
RESULTS
The urinary 1-OHP and 2-naphthol concentration was higher in the coke oven workers and in smokers. Urinary 1-OHP concentration was significantly correlated with time after last intake of roasted meat in non-smoking coke oven workers, whereas urinary 2-naphthol concentration was with amount of cigarette smoking at the sampling day in smoking shipyard workers. Urinary 1-OHP, but not 2-naphthol, concentration of the shipyard workers with Ile/Ile type of CYP1A1 vas significantly lower than that of the shipyard workers with other CYP1A1 genotype.
CONCLUSIONS
Urinary 1-OHP would be a better marker for occupational exposure to PAH in coke oven workers, and urinary 2naphthol might be better for non-occupational inhalation exposure to PAH. CYP1A1 would not play an important role in the metabolism of naphthalene but in the metabolism of pyrene.

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1-Hydroxypyrene and oxidative stress marker levels among painting workers and office workers at shipyard
Younglim Kho, Eun-Hee Lee, Hong Jae Chae, Kyungho Choi, Domyung Paek, Sangshin Park
International Archives of Occupational and Environmental Health.2015; 88(3): 297. CrossRef
A study of the status of exposure to polycyclic aromatic hydrocarbons (PAHs) in relation to its metabolites among workers in a Korean chemical factory
Kwan Lee, Hyun-Sul Lim, Heon Kim
Ciência & Saúde Coletiva.2014; 19(12): 4809. CrossRef
1-Hydroxypyrene as a biomarker of PAH exposure among subjects living in two separate regions from a steel mill
Mi-Sun Lee, Ki-Do Eum, Kyung-Duk Zoh, Tak-Soo Kim, Yun-Suk Pak, Domyung Paek
International Archives of Occupational and Environmental Health.2007; 80(8): 671. CrossRef

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