Annals of Occupational and Environmental Medicine

Kyung Hwan Cho

4 Articles

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

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

Abstract 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

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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.

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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

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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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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
Annals of Rehabilitation Medicine.2015; 39(5): 726. CrossRef
Work-related Musculoskeletal Disorders in Korea Provoked by Workers’ Collective Compensation Claims against Work Intensification
Dongmug Kang, Youngki Kim, Young-Il Lee, Sangbaek Koh, Inah Kim, Hoonkoo Lee
Annals of Occupational and Environmental Medicine.2014;[Epub] CrossRef
Subjective symptoms in musculoskeletal and preventive actions of Dental technicians in Daegu Metropolitan City
Eun-Jin Jang, Young-Dae Bark
Journal of Korean Acedemy of Dental Technology.2014; 36(4): 257. CrossRef
Work-related Musculoskeletal Disorders in Korea and Japan: A Comparative Description
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Risk factors of musculoskeletal symptoms in university hospital nurses
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The Study on Computer Workstation, Rest and Musculoskeletal Symptoms in High School Students
Tae-Hyung Yoon, Tae-Hyun Cha, Sang-Hui Hwang
Journal of the Korea Academia-Industrial cooperation Society.2012; 13(7): 3037. CrossRef
Occupational Diseases in Korea
Seong-Kyu Kang, Eun A Kim
Journal of Korean Medical Science.2010; 25(Suppl): S4. CrossRef
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
Results of a survey on the awareness and severity assessment of upper-limb work-related musculoskeletal disorders among female bank tellers in Korea
Myung Hwan Yun, Yun Geun Lee, Hong Jun Eoh, Sang Hyuk Lim
International Journal of Industrial Ergonomics.2001; 27(5): 347. CrossRef

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