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KMID : 1039220230330040447
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Journal of Korean Society of Occupational and Environmental Hygiene
2023 Volume.33 No. 4 p.447 ~ p.454
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The Impact of Changes in Working Conditions at a Car Parts Manufacturing Plant on Job-related Stress and Musculoskeletal Disorders?2004 to 2022
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Kim Byoung-Hoon
Park Ji-Young
Ha Kwon-Chul
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Abstract
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Objective: This study aims to investigate the impact of changes in working conditions on job-related stress and musculoskeletal disorders using the results of seven surveys conducted at a single workplace from 2004 to 2022 regarding factors hazardous to the musculoskeletal system. Additionally, the study aims to propose alternative methods of investigating factors hazardous to the musculoskeletal system.
Methods: A car parts manufacturing plant where the same survey was taken seven times from 2004 to 2022 was selected and the survey data was analyzed. The main contents of the survey were weekly working hours, Borg’s scale, work intensity, job-related stress, and the prevalence of musculoskeletal symptoms. The statistical analysis was performed using SAS (version 9.4).
Results: The results of this study are as follows. Firstly, changes in working conditions have an impact on job-related stress. Secondly, changes in working conditions have an impact on work intensity indicators. Thirdly, changes in working conditions have an impact on the prevalence of musculoskeletal symptoms. Fourthly, even with an increase in age and length of service, job-related stress and musculoskeletal symptoms were alleviated when working conditions were improved.
Conclusions: In order for measures to reduce musculoskeletal disorders to be successful, working conditions must not deteriorate, and it is necessary to demand revisions to regulations, etc. to reflect these points in the investigation of hazardous factors to the musculoskeletal system.
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KEYWORD
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working conditions, work intensity, musculoskeletal disorder, job stress
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