대한인간공학회지 (Journal of the Ergonomics Society of Korea)

  • 제25권4호
  • /
  • Pages.145-151
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  • 2006
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  • 1229-1684(pISSN)
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  • 2093-8462(eISSN)
대한인간공학회 (Ergonomics Society of Korea)
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어깨와 팔꿈치의 조합자세 및 외부부하가 지각불편도에 미치는 영향

The Effect of Shoulder and Elbow Postures with External Loads on the Perceived Discomfort

  • 김동진 (포항공과대학교 산업경영공학과) ;
  • 나석희 (포항공과대학교 산업경영공학과) ;
  • 박국무 (현대.기아자동차 연구개발총괄본부)
  • Kim, Dong-Jin (Department of Industrial and Management Engineering, POSTECH) ;
  • Na, Seok-Hee (Department of Industrial and Management Engineering, POSTECH) ;
  • Park, Guk-Mu (Hyundai & Kia Corporate Research & Development Division)
  • 발행 : 2006.11.30
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초록

The objective of this study is to investigate the perceived discomfort for postures combined with shoulder flexion/extension and elbow flexion, and external load. 12 healthy male undergraduate and graduate students participated in this experiment. Experimental variables were the shoulder flexion/extension angle(-20°, 0°, 45°, 90°, 135°), the elbow flexion angle (0°, 45°, 120°), and the external load(0, 1.5Kg, 3Kg) as independent variables and a whole body perceived discomfort using Borg's CR10 as a dependent variable. The subjects maintained the given posture for 60 seconds and then rated the perceived discomfort. The ANOVA results showed that all main factors and two-way interactions were statistically significant at α=0.05. As a result of regression analysis to examine the effect of external load on the perceived discomfort, the perceived discomfort linearly increased as the level of external load increased. Then, the effect of external load on the perceived discomfort was quantitatively classified into three levels based on the result of regression analysis.

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참고문헌

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