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A study on determination of working posture to be analyzed during MSDs evaluation
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근골격계질환 위험도 평가 관련 문제 작업 자세 결정에 관한 연구

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Type
Academic journal
Author
Noh, An-Na (인하대학교 산업공학과) Choi, Seo-Yeon (인하대학교 대학원 의학과) Park, Dong-Hyun (인하대학교 산업공학과)
Journal
대한안전경영과학회 대한안전경영과학회지 대한안전경영과학회지 제17권 제3호 KCI Accredited Journals
Published
2015.1
Pages
133 - 141 (9page)

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A study on determination of working posture to be analyzed during MSDs evaluation
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This study tried to identify the problems associated with the posture to be analyzed and tried to suggest guidelines for MSDs(Musculoskeletal Disorders) evaluation based on working posture. A total of 50 jobs from 3 different types of industries(electronics, hospitals, automobiles) were used for MSDs evaluation study which was done by 6 observers. Two indexes were applied to identify the problem in this study which were percentage of agreement and counter-time-error rate. Specifically, 'counter-time-error rate' represented a degree of consistency in terms of selecting the posture to be analyzed time after time. Main results of the study were as follows; 1) The average percentage of agreement for representative posture for whole body was relatively higher than that for representative postures for individual body parts, 2) The counter-time-error rate(%) has been reduced as the evaluation process has repeated for the same job. 3) The counter-time-error rate(%) for electronics, hospitals, and automobiles were 63.4%, 61.2%, and 67.3% respectively. 4) The counter-time-error rate(%) for the job with the work cycle of 0.5 to 2 minutes were lower than that of the jobs with the work cycles less than 0.5 minute or greater than 2 minute. 5) The work cycles and the number of trials had significant effects on counter-time-error rate while the types of industries did not have significant effects on counter-time-error rate. Some guidelines could be prepared from the results of the study. Probably, there should have an extension in terms of form and matter for this study in order to have more practical output.

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