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Isometric push and pull strengths of young Taiwanese males
Yi-Lang Chen1, Yu-Chi Lee, Tin-Chi Hsu
1Department of Industrial Engineering and Management, Mingchi University of Technology, New Taipei City, Taiwan. ylchen@mail.mcut.edu.tw
Abstract:
This study recruited 30 young Taiwanese males to determine the horizontally maximum isometric pushing and pulling strengths under 16 exertion heights and four handle-foot horizontal distances. This study shows that isometric push and pull strengths as measured on a simulated frictional floor condition in Taiwanese hypermarkets were markedly lower than previous tests using high-traction flooring or anchoring participant's feet. Pushing strengths were always higher than pulling in all 64 task combinations, whereas no significant differences were present at heights of 30-60 cm. When considering maximum push and pull force demands, the optimal heights for such activities would be 50-90 cm (approximately ranged from the knee to hip position). The push and pull strength profiles identified in this study must be used appropriately, considering the real task situations.
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