The Effects of Gender and Lifting Belt on the Maximum Lifting Capabilities of One-Lift at Different Shifts and Orientations

性別與腰背帶在不同高度與非對稱性搬運下對一次最大抬舉能力之影響

10.29977/JCIIE.200603.0007

石裕川(Yuh-Chuan Shih)；張志宏(Chih-Hung Chang)；王茂駿(Mao-Jiun J. Wang)

性別 ； 腰背帶 ； 不對稱 ； 高度 ； 人工物料搬運 ； gender ； lifting belt ； asymmetry ； shift ； manual material handling

工業工程學刊

23卷2期（2006 / 03 / 01）

166 - 173

英文

本研究共招募男女受試者各10名，以探討穿戴腰背帶之後的一次最大抬舉能力是否會因不同性別、對稱與否（0°與右轉45°）以及不同搬運高度（地面至75cm(F-75)，75cm-125cm(75-125)）而有所不同。研究結果顯示腰背帶對一次最大抬舉能力的影響因性別而有所差異，而且此差異也會因不同高度或對稱與否而有所不同。在F-75高度下，穿戴腰背帶會顯著增加一次最大抬舉能力；在75-125高度下結果則相反，此現象男女皆然。另一方面，在對稱情況下，穿戴腰背帶不會對男女性之一次最大抬舉能力造成顯著影響；但於非對稱性情況下，穿戴腰背帶仍然不會對女性之一次最大抬舉能力造成顯著影響，但卻會顯著提升男性之一次最大抬舉能力。此外，不論任何實驗組合，男性之一次最大抬舉能力皆高於女性。遺憾的是，腰背帶的穿戴效果至今莫衷一是，是故日後仍需相關的研究投入以提供更多之資訊。

This paper aims to examine whether the effect of a lifting belt on the maximum lifting capability of one-lift (MLC-1) depends on gender at different orientations (0° and right 45°) and shifts (Floor to 75cm (F-75) and 75cm-125cm (75-125)). Ten male and ten female subjects participated in this study, and a balanced factorial design was employed. The results indicated that the influence of wearing an elastic lifting belt depended on gender; furthermore, this gender*belt interaction varied with orientation and shift. It was found that, for both genders, wearing belts can improve the MLC-1 at F-75 shift, but it is inverse at 75-125 shift. On the other hand, in symmetric lifting, the effect of belts is not significant on MLC-1 for both genders. In asymmetric lifting, it remains insignificant for females, but wearing belts can improve the male MLC-1. As expected, male MLC-1 is greater than that of female regardless of conditions. Unfortunately, the effectiveness of using belts is still controversial. Therefore, the provision of more information about the evaluation of lifting belts is still necessary in the future.

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