Annals of Occupational and Environmental Medicine

Seok Joon Sohn

3 Articles

Sociopsychological factors associated with symptoms of work-related musculoskeletal disease: Chul Gab Lee, Jong Park, Jung Sik Park, Seok Joon Sohn; Korean Journal of Occupational and Environmental Medicine 2005;17(2):104-115. Published online June 30, 2005; DOI: https://doi.org/10.35371/kjoem.2005.17.2.104

OBJECTIVES
The sudden increase in work-related musculoskeletal disease is caused by sociopsychological factors and ergonomic risk factors of the work process. This study evaluates the relationship between the symptoms of musculoskeletal disease and the sociopsychological factors.
METHODS
A questionnaire survey and ergonomic evaluation were administered to workers of a shipyard company with a high incidence rate of musculoskeletal disease. To quantify the pain score associated with a diagnosis of musculoskeletal disease, the pain degree(1~5points), frequency (1~4 points) and duration (1~4 points) were multiplied to give a maximum score of 80. A score above 64 points on the pain score was defined as 'severe pain group'. This 'severe pain group' was chosen as the dependent variable and the sociopsychological factors were evaluated as independent variables with structural equation modeling based on a decision tree of exhaustive CHAID.
RESULTS
The standardized regression weights value with reference to the REBA score(0.54) had the largest value by the type of company, followed in order by joining and acting labor union(.313), job demand(.172), senior support(-.095), insufficient sleep (.092), and colleague support (.061).
CONCLUSION
The symptoms of musculoskeletal disease were greatly affected by sociopsychological factors such as whether joining and acting labor union, job demand, and senior or colleague support.

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The Validity and Reliability of the Second Korean Working Conditions Survey
Young Sun Kim, Kyung Yong Rhee, Min Jung Oh, Jungsun Park
Safety and Health at Work.2013; 4(2): 111. CrossRef
Work-related musculoskeletal disorders in Korean farmers
Chul Gab Lee
Journal of the Korean Medical Association.2012; 55(11): 1054. CrossRef

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The effectiveness of the intervention in the workplace on patients suffering from Cervicobrachial disorder: Myung Ho Sohn, Jin Su Choi, Seok Joon Sohn, Yang Ok Kim, Jong Park; Korean Journal of Occupational and Environmental Medicine 1999;11(4):460-475. Published online December 31, 1999; DOI: https://doi.org/10.35371/kjoem.1999.11.4.460

Abstract PDF

OBJECTIVES
In order to reveal the effectiveness of the intervention in the workplace on patients suffering from cervicobrachial disorder (CBD), we reexamined 96 workers out of 137 workers suffering from CBD on the assembly lines of an electric manufacturing factory by using questionnaires, physical exams and neurological exams.
METHODS
Analyses were made of the characteristics of the 96 workers of this company suffering from 1994 to 1996 with special concern for differences before and after the improvement of the working environment. After reexamination of the 96 patients the following results were obtained.
RESULTS
We observed an improvement in the 10 most common subjective symptoms of CBD. These symptoms included general fatigue, pain on neck and shoulders, dullness of the upper extremities, back pain and discomfort and a tingling sensation in the hands and wrists (p < 0. 05). The percentage of workers who complained muscle tenderness of neck and shoulder were reduced (p < 0.05). the percentage of workers with abnormal Morley examination was reduced from 28. 5% to 2. 100 (p < 0.01), and of workers with abnormal EMG finding went from 12. 4% to 2. lao (p < 0. 01) and of grade 3 and grade 4 CBD was reduced from 42. 3% and 18. 3% respectively to 33. 3% and 2. ba (p < 0. 01). Grade 3 and over laborers of CBD had higher scores in somatization, anxiety, depression, hostility, interpersonal sensitivity, phobic anxiety, obsessive-compulsive, neurasthenic, hypochondriacal than other sufferers in the SCL-90-R exam (p < 0. 01).
CONCLUSIONS
in conclusion intervention had effectiveness on subjective symptoms of neck and shoulder and decreasing abnormal finding of muscle tenderness, neurological examination and EMG.

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Clinical Study of the Effects of Juglandis Semen Pharmacopuncture Therapy on Shoulder Pain
Han-Na Choi, Seoung-Whon Lee, Cheol-Hong Kim, Hyun-Min Yoon, Kyung-Jeon Jang
Journal of Pharmacopuncture.2011; 14(4): 39. CrossRef

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Respiratory Symptoms, Cognitions about Working Environments and Pulmonary Functions in Coal Mine Workers: Dong Hyun Yoon, Hae Sung Nain, Jun Ho Shin, Myung Ho Son, Myung Ha]f Lee, Seok Joon Sohn, Byong Woo Kirn; Korean Journal of Occupational and Environmental Medicine 1994;6(2):302-315. Published online September 30, 1994; DOI: https://doi.org/10.35371/kjoem.1994.6.2.302

Abstract PDF: To assess the adverse effects of dust on pulmonary function and to determine the association between subjective respiratory symptoms, cognitions about working environments and pulmonary functions, the study was conducted on 719 coal mine workers (395 workers on direct part, 324 workers on indirect part) being employed in a coal mine industry located in Hwa-Soon area. Questionnaires on respiratory symptoms and cognitions about working environments were filled out by themselves, and pulmonary function test was given by trained doctors. The results obtained were as follows ; 1. Significantly increased subjective respiratory symptoms prevalence were found in the workers on direct part comparing to workers on indirect part, and symptoms prevalence rate was higher in sputum, coughing, respiratory difficulty, palpitation and chest pain in order. 2. Significantly increased cognitions degree about working environments were found in workers on direct part comparing to workers on indirect part, and the degree was higher in dust concentration, temperature, working density and humidity in order. 3. FVC, FEV(0.5), FEF(200-1200ml) and FEF(25-75%) were lower for workers on direct part than that for workers on indirect part. 4. In workers on direct and indirect part, lung functions except FEF(200-l200ml) for the high subjective symptom group was smaller than that for the low group. There was not significane statistically, but the significane was found in FVC and FEVt in total coal workers. 5. In workers on direct part, FEVt and FEF(25-75%) for high cognition group about working environmental conditions was smaller than that for the low group but other lung functions were reversed. But in workers on indirect part, similar results was found and the significance was found in FEV(0.5) FEF(25-75%) and FEF(200-1200ml) in total coal workers. 6. Lung functions had negative correlation between sputum and FEF(200-1200ml).

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