• 대한인간공학회지
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• 제27권3호
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• pp.53-60
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• 2008

The work-related musculoskeletal disorders have constantly increased since it became an issue in 1996. In 2002, the Government established the risk factors analysis system in order to prevent musculoskeletal disorders. The proclamation by the Ministry of Labor defined eleven spheres of work associated with musculoskeletal disorders. As a result, business proprietors, who have workers engaged in tasks associated with musculoskeletal disorders, are required to conduct the risk factor analysis on a regular basis every three years. However, numerous issues have been raised while carrying out the risk factor analysis in various industries. One of the issues is that even though work sampling is an ideal method in risk factor analysis, most cases have selected extreme task postures, which is judged by an expert, due to limited time. This study will propose the desired direction of the risk factor analysis by comparing task assessment results between work sampling scenes and extreme task scenes.

• 한국전문물리치료학회지
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• 제16권1호
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• pp.42-51
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• 2009

The purpose of this study was to develop a checklist of risk factors for quantitative assessment of musculoskeletal complaints in shipbuilding workers. A key point was to develop comprehensive a checklist including the worker's physical ability, as ergonomic and workload factors. ln the first, through correlation analysis between musculoskeletal complaints and physical abilities in shipbuilding workers, risk factors related to physical abilities were selected. In the second, after the development of a checklist was composed of physical, ergonomic and workload factors, factor analysis was used to test the validity of the developed checklist. Each factors selected finally showed that physical factors were hand grip strength, spinal curvature, and flexibility (sit to reach), ergonomic factors were posture, total exposed time, duration, and force of working, and workload factors were physical and psychological workload perceived by worker. The results showed that musculoskeletal complaints was associated with physical abilities (p<.05). The developed checklist had a reliability of .761 (Cronbach=.761) and a validity and explanation of 54.9%. The criterion of management was classified in 4 stages by relative weights of each factor. It is suggested that active intervention is needed to reduce musculoskeletal complaints in workers with more than a 14.31 score.

• 대한정형도수물리치료학회지
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• 제19권1호
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• pp.9-20
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• 2013

Background: This study was conducted to provide preventive measure for the musculoskeletal disorders in automobile parts manufacturing workers. Method: The author surveyed to the musculoskeletal symptoms prevalence and its related factors from 10th to 17th April 2011 with structured self administered questionnaires. 223 out of 225 collected questionnaires were used for final analysis, excluding 2 questionnaires with no valid response. Based on the diagnostic criteria of NIOSH (National Institute for Occupational and Health), an investigation was made into the prevalence of musculoskeletal symptoms as well as into the factors related to individual items. Results: The prevalence of musculoskeletal symptoms according to the criteria of NIOSH was the highest in the shoulder (52.9%), followed by the neck (39.%), the hand/wrist (35%), the waist (29.6%), the arm/elbow (24.7%), and the leg/food (23.8%). One-way analysis showed that among general characteristics, age was the musculoskeletal risk factor with the greatest effect. Whereas among work-related characteristics, significant risk factor didn't find. Yet it was shown that among ergonomic work postures, high degree of musculoskeletal risk was shown by the posture involving frequent and repetitive movement of the arm and the hand/wrist and also by the posture involving standing for a long time. Multiple regression analysis showed that musculoskeletal risk was 1.795 times higher in those age 50 and over than in those under age 50; 1.67 times higher in the high risk stress group than in the low risk stress group; and 1.131 higher in the group involving the repetitive use of the hand/arm than in the other groups (p<.05). Conclusion: The prevalence and stress score of automobile parts manufacturing workers were higher than other occupation workers. Among general characteristics, drinking and smoking were shown to be related to stress score; while age was shown to have significant effect on musculoskeletal risk.

• 농촌의학ㆍ지역보건
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• 제25권1호
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• pp.11-21
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• 2000

농부들의 근골격계 위험요인을 평가하고 농부증 증상에 미치는 영향을 분석하기 위하여 경기도 농촌지역 3개 면(面)에서 30세 이상 농부 97명을 대상으로 일반적 사항, 근골격계 위험인자, 농부증 증상에 대한 면접 설문조사와 혈압검사, 임상검사를 실시하였다. 근골격계 위험인자 9항목 중 6개 이상 해당하는 농민들을 근골격계 고위험군, 해당항목이 5개 이하인 농민들을 저위험군으로 선정하여 농부증 증상과 임상검사 결과를 비교하였다. 근골격계 위험인자 중 가장 농민들이 많이 호소한 인자는 반복 동작, 허리를 굽히 자세, 빠른 동작 순이였다. 전체 연구 대상자의 농부증 양성률은 28.9%였으며 남자의 농부증 양성률은 16.4%, 여자의 양성률은 45.2%로 나타나 여자의 농부증 양성률이 남자보다 의미있게 높았다. 근골격계 고위험군의 농부증 점수는 5.9점, 저위험군은 4.4점으로 유의학게 고위험군이 높아 농부증에 근골격계 위험인자가 영향을 미치고 있었다. 농부증 증상 중 가장 흔한 증상은 요통으로 76.3%의 농민이 호소하고 있었으며, 수족 감각둔화(54.6%)와 어깨결림(54.6%) 순으로 근골격계 증상 유병률이 높았다. 농부증 근골격계 증상은 어깨결림이 고위험군에서 62.2%, 저위험군이 43.2%로 수족 감각둔화가 고위험군이 62.3%, 저위험군이 45.5%로 의미있게 고위험군의 유병률이 높으나 요통은 고위험군이 77.4%, 저위험군이 75.0%로 의미있는 차이가 없었다. 농부증 점수를 종속변수로 하고 근골격계 위험도, 성, 연령, 음주 여부, 흡연 여부를 독립변수로 하여 다중 회귀 분석을 실시한 결과 근골격계 위험도와 성이 유의한 독립변수로서 작용하였다. 혈압검사와 임상검사에서는 두군간에 의미있는 차이를 보이지 않았다. 이상의 결과에서 근골격계 위험인자는 농부증에 영향을 미치고 있었으며 이에 관한 인간 공학적인 평가와 개선 방안에 대한 지속적인 연구가 필요할 것으로 생각된다.

• 대한안전경영과학회지
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• 제25권1호
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• pp.39-50
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• 2023

This study analyzed the effect of workers' socio-psychological burden factors on musculoskeletal disorders. A survey was conducted targeting office and field workers in the Seoul metropolitan area. Analysis was performed using the results of 357 surveys out of 400 surveys. The analysis results were derived as follows. First, the socio-psychological burden factor did not show statistically significant results for musculoskeletal disorders. Second, it was found that job stress factors also had a positive effect on musculoskeletal disorders. Third, social psychological burden factors were found to be more positive than office workers than field workers. Fourth, there was a statistically significant correlation between job stress and musculoskeletal disease risk scores. From the above results, job stress factors affect musculoskeletal disease risk factors (work frequency, pain level, and duration) and the increase in musculoskeletal disorders and the number of accidents.

• 대한안전경영과학회지
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• 제7권3호
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• pp.63-72
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• 2005

The purpose of this study is to examine the prevalence of musculoskeletal disorders and ergonomic risk factors for workers of printing business. A self-reporting survey and task analysis using video camera were performed to identify ergonomic risk factors associated with musculoskeletal disorders. We used the OWAS, RULA, and REBA methods to quantify the risk factors, and the results show that the printing business have high risk of work-related musculoskeletal disorders.

• 한국산업보건학회지
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• 제16권4호
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• pp.385-397
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• 2006

A high prevalence of farmer's work-related musculoskeletal disorders(MSDs) have been reported in precedent studies. To offer the basic data for reducing the melon farmer's MSDs, a questionnaire survey about MSDs symptoms and work loaded body part and video analysis by 3 checklist(REBA, RULA, OWAS) for musculoskeletal risk assessment were carried. 94 melon farmers for this questionnaire and 1 typical farm for risk assessment were participated. A total of 80.9% of the farmers reported musculoskeletal symptoms and 60.6% reported musculoskeletal symptoms over NIOSH standard. The mainly symptom body part is low back, knee and shoulders. Main risk factors in melon farm are awkward postures, heavey/frequent lifting and repetitive hand/arm motions. The high risk tasks induced by video analysis were harvesting, removing the sprouts and covering with rags. These result can be used practically for planning intervention strategy and programs to prevent farmer's MSDs.

• 농촌의학ㆍ지역보건
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• 제44권3호
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• pp.138-143
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• 2019

양봉 작업은 들기 작업이 많아 근골격계 부담이 컸으며 양봉 농업인의 대부분이 지난 1년 동안 직업과 관련된 근골격계 질환 증상을 호소했다. 보조도구인 벌통리프트를 사용하면 양봉 작업으로 인한 근골격계 부담을 줄일 수 있다.

• 대한인간공학회지
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• 제24권1호
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• pp.27-35
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• 2005

This paper describes a practical ergonomic approach for the shipbuilding industry that occupies the highest rate of work-related musculoskeletal disorders (WMSD) in Korea. Typical work processes within a shipbuilding operation were surveyed to determine the presence of risk factors associated with musculoskeletal disorders. We used interviews, document analysis, video analysis, and OWAS postural analysis to identify and quantify ergonomic risk factors that workers may be exposed to in the course of their normal work duties. Some ergonomics actions were performed to solve the problems identified in the risk factor analysis. The practical ergonomic approach has resulted in decreases in workers' accident, and increases in productivity. The ergonomic solutions developed in this study could be applied to other sectors of industry that share common features of work with shipbuilding industry.

• 대한인간공학회지
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• 제27권4호
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• pp.65-71
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• 2008

This study conducted two surveys to establish an educational system to prevent work-related musculoskeletal disorders. The first survey investigates the factors influencing the recognition of job specifications for risk factor analysts of work-related musculoskeletal disorders. The respondents of the first survey were selected from 173 different small-sized manufacturing enterprises having less than 300 workers and had experienced the inspection of risk factors. The results of the first survey shows that better recognition of job specifications are followed by the increase of education time, but regardless of the positions and periods of job experience. Among the respondents with a high level recognition, the second survey was conducted. According to the results, it is presented that 2, 8, 16 hours are the most suitable for educating workers, superintendents, and risk factors analysts. Based on the results of the second survey, educational contents have also been suggested. This research will provide the basic information when forming education systems to prevent musculoskeletal disorders.