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논문 기본 정보

자료유형
학술저널
저자정보
김홍기 (경기대학교)
저널정보
대한인간공학회 대한인간공학회지 대한인간공학회지 제29권 제1호
발행연도
2010.2
수록면
145 - 153 (9page)

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초록· 키워드

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Activity of lifting has been a major issue in many research area related in manual materials handling tasks. However, the opposite activity of lifting, lowering, has received much less attention. It is known that 52% of all box-handling tasks were lowering in nature. The difference in stress between lifting and lowering activity is not well understood. A simple assumption that these two activities are very similar has been established and widely used. However, this simple assumption may be questionable. The objective of this study was to compare a lifting activity and a lowering activity based on the three different ergonomic approaches; (1) biomechanical, (2) physiological, (3) psychophysical approach. It was found that the stress of lowering activity was from 65% to 93%, from 87% to 97%, and from 87% to 96% according to the biomechanical, physiological, and psychophysical point of view, respectively. It is concluded from the result of this study that the stress of lowering activity is lower than that of the lifting activity. The maximum compressive force on the lumbro-sacral joint (L5/S1) was 158% and 108% respectively, for lifting and lowering activity of which the work load is the 58% of Action Limit. It is suggested that the NIOSH AL and RWL and biomechanical cliteria should be reconsidered especially for the low frequency of lifting activities.

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ABSTRACT
1. 서론
2. 실험 계획 및 실험 방법
3. 실험 결과 분석
4. 토의
5. 결론 및 추후 연구 방향
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UCI(KEPA) : I410-ECN-0101-2010-530-002218446