• Title/Summary/Keyword: musculoskeletal risk factor

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Comparison of Task Assessment Results between Work Sampling Scenes and Extreme Task Scenes (워크샘플링 장면과 극단치 작업장면의 작업평가 결과 비교)

  • Shin, Chung-Kyu;Jeong, Byung-Yong
    • Journal of the Ergonomics Society of Korea
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    • v.27 no.3
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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.

The Development of a Checklist for Quantitative Assessment of Risk Factors of Musculoskeletal Complaints in Shipbuilding Workers (조선소 근로자의 근골격계 자각증상에 대한 위험요인 평가척도 개발)

  • Kim, Won-Ho
    • Physical Therapy Korea
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    • v.16 no.1
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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.

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Musculoskeletal Symptoms Prevalence and Its Related Factors of Workers in Manufacturing Industry of Automobile Parts in Gimhae City (김해시 자동차 부품 생산직 근로자의 근골격계 증상 유병률과 관련요인)

  • Park, Su-Hyung;Moon, Deog-Hwan;Kim, Chi-Hyok
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.19 no.1
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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.

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The Study of Effects of Musculoskeletal Risk Factors on Farmer's Syndrome (근골격계 위험요인이 농부증에 미치는 영향)

  • Park, Jae-Beom;Lee, Kyung-Jong;Lee, Se-Wi;Kim, Jong-Goo;Chung, Ho-Keun
    • Journal of agricultural medicine and community health
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    • v.25 no.1
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    • pp.11-21
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    • 2000
  • This study was conducted to reveal the effects of musculoskeletal risk factor on farmer's syndrome. We sampled 97 farmers aged above 30 in 3 villages of Kyunggi-do. Self-administered questionnaire for general characteristics, farmer's syndrome, musculoskeletal risk factor, blood pressure, and laboratory tests were conducted. According to the score of musculoskeletal risk factor, we divide the subjects high risk group and low risk group. The most common musculoskeletal risk factor is repetitiveness, bending of waist and rapid movement in order. The prevalence of farmer's syndrome of all subjects is 28.9%. In female the prevalence of farmer's syndrome(45.2%) is higher than in male(16.4%) significantly. High musculoskeletal risk group had higher score of farmer's syndrome(5.9) than low musculoskeletal risk group(4.4). The most common symptom is lumbago(76.3%), the second was numb limb and shoulder stiffness(54.6%, 54.6%). The prevalence of numb limb and shoulder stiffness higher in high musculoskeletal risk group than low musculoskeletal risk group, but that of lumbago did not show significant differences. In linear regression, score of farmer's syndrome was related to musculoskeletal risk factor as well as gender. Blood pressure and laboratory test did not show significant differences between two groups. These results suggest that musculoskeletal risk factor would influence farmer's syndrome. Further ergonomic evaluation and intervention of farmer's works and musculoskeletal diseases are needed.

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A Study on Musculoskeletal Disorders of Workers in Clothing Design (의류디자인 근로자의 근골격계질환에 관한 연구)

  • Ho-Jun Lee;Young-Guk Kwon
    • Journal of the Korea Safety Management & Science
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    • v.25 no.1
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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.

Risk Factor Analysis of Printing Business Workers (인쇄업종 근로자들의 작업위험성 평가)

  • Choi Ho Dal;Kim Hyun Ho;Jeong Byung Yong;Yang Hong Seok
    • Journal of the Korea Safety Management & Science
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    • v.7 no.3
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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.

Risk Assessment and Symptoms of Musculoskeletal Disorders in Melon Farm Workers (시설참외 재배작업의 근골격계 위험도 및 자각증상 호소율)

  • Kim, Kyung-Su;Kim, Kyung-Ran;Kim, Hyo-Cher;Lee, Kyung-Suk
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.16 no.4
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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.

Risk Assessment and Intervention of Ergonomic Risk Factor in Beekeeping (양봉 작업의 인간공학적 위험성평가 및 개선 사례)

  • Lee, Chanhwi;Kang, Taesun
    • Journal of agricultural medicine and community health
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    • v.44 no.3
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    • pp.138-143
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    • 2019
  • Objectives: The purpose of this study was to assess the ergonomic risk factors in beekeeping, and to evaluate the effectiveness of assistive device hive lift. Methods: This study included 30 subjects of beekeeper in Pocheon, Korea. We assessed the ergonomic risk of main task in beekeeping with NLE, OWAS and evaluate the effectiveness of hive lift. We also surveyed prevalence of musculoskeletal symptoms among the subjects based on the Korea Working Condition Survey. Results: Moving to different floral origin, internal inspection of beehives, feeding syrup is the most burdensome to musculoskeletal system (NLE LI value=2~3. OWAS action category=4). The prevalence of musculoskeletal symptoms (lower and upper extremities) among the subjects was over 80 %. The introduction of assistive devices in the three hazardous tasks has dramatically reduced the risk by removing manual lifting hives (OWAS action category<1). Conclusions: Beekeeping is a heavy workload on the musculoskeletal system because it has a lot of manual lifting task. As a result of applying the hive lift, the burden could be reduced.

Risk Factor Analysis and Ergonomics Improvements in a Shipbuilding Industry (조선업종의 유해요인조사 및 인간공학적 개선)

  • Oh, Soon-Yong;Jeong, Byung-Yong
    • Journal of the Ergonomics Society of Korea
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    • v.24 no.1
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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.

A Study on Job Training for Risk Factors Analysts of Work-related Musculoskeletal Disorders (근골격계질환 관련 유해요인조사자의 직무교육에 관한 연구)

  • Choi, In-Seok;Jeong, Byung-Yong
    • Journal of the Ergonomics Society of Korea
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    • v.27 no.4
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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.