Effect of External Load at Varying Hand Positions on Perceived Discomfort

• Autorzy: Kee D. , Na S. , Chung M. K.
• Języki publikacji: EN

Abstrakty

EN

The purpose of this study was to assess the effect of external load at varying hand positions on discomfort, and to provide a new classification of external load. An experiment was carried out in which 16 postures with an external load of 0, 1.5, 3 kg were tested. The postures were controlled by 2 independent variables of hand distance and hand height. The subjects were instructed to rate their perceived discomfort with magnitude estimation after holding a given posture for 1 min. Analysis of variance (ANOVA) exhibited that the main effects of the 3 independent variables were statistically significant for discomfort. Discomfort increased linearly with external load and hand distance. Hand height showed a quadratic relation with discomfort, which exhibited a slightly different trend from hand distance and external load. Based on the results, a new classification of external load was proposed with 3 classes grouped by perceived discomfort.

Słowa kluczowe

EN

perceived discomfort; postural stress; external load; hand position

PL

pozycja przy pracy; pozycja ręki; dyskomfort; obciążenie zewnętrzne

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 2013
• Tom: Vol. 19, No. 3
• Strony: 397--408
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wykr.

Twórcy

autor

Kee D.

• Department of Industrial and Management Engineering, Keimyung University, Daegu, Korea

autor

Na S.

• Division of Mechanical and Industrial Engineering, Pohang University of Science and Technology, Pohang, Korea

autor

Chung M. K.

• Division of Mechanical and Industrial Engineering, Pohang University of Science and Technology, Pohang, Korea

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