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A study on determination of working posture to be analyzed during MSDs evaluation

근골격계질환 위험도 평가 관련 문제 작업 자세 결정에 관한 연구

  • Noh, An-Na (Dept. of Industrial Engineering, Inha University) ;
  • Choi, Seo-Yeon (Dept. of Social & Preventive Medicine, Inha University) ;
  • Park, Dong-Hyun (Dept. of Industrial Engineering, Inha University)
  • Received : 2015.07.20
  • Accepted : 2015.09.20
  • Published : 2015.09.30

Abstract

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.

Keywords

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Cited by

  1. 치과위생사의 치석제거 작업자세와 근골격계질환 자각증상의 융복합적 관련성 vol.9, pp.11, 2015, https://doi.org/10.15207/jkcs.2018.9.11.117
  2. 근골격계질환 유해요인 정밀조사를 위한 OWAS, RULA, REBA의 평가 정확도 및 신뢰도 분석 vol.22, pp.2, 2020, https://doi.org/10.12812/ksms.2020.22.2.031