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
Citations to this article as recorded by
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
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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