McGorry R W, Lin J-H
Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA.
Ergonomics. 2007 Sep;50(9):1392-403. doi: 10.1080/00140130701340115.
Thirty male volunteers participated in a study evaluating the effect of workspace envelope (work height and reach distance) and handle orientation on grip force capacity. Maximum voluntary power grip exertions were recorded using instrumented tool handles under three conditions: a pistol grip tool handle oriented horizontally and vertically and a right angle tool handle oriented horizontally. Significant main effects of handle height and reach location on normalized grip force capacity were observed with the horizontally oriented pistol grip and right angle handles, whereas only an interaction effect was observed with the vertically oriented pistol grip handle. Comparison of results to scores produced with a job assessment tool (RULA) is included as an appendix. The proposed methodology can provide information useful to job, workstation or tool design directed toward best accommodating the physical capacities of workers performing hand tool tasks.
30名男性志愿者参与了一项研究，该研究评估工作空间范围（工作高度和伸展距离）以及手柄方向对握力的影响。在三种条件下，使用装有仪器的工具手柄记录最大自主力量握力：水平和垂直方向的手枪式握把工具手柄以及水平方向的直角工具手柄。对于水平方向的手枪式握把和直角手柄，观察到手柄高度和伸展位置对标准化握力有显著的主效应，而对于垂直方向的手枪式握把手柄，仅观察到交互效应。结果与使用工作评估工具（RULA）得出的分数的比较作为附录包含在内。所提出的方法可以为工作、工作站或工具设计提供有用信息，以最好地适应执行手动工具任务的工人的身体能力。
