Characterisation of forces exerted by the entire hand during the power grip: effect of the handle diameter
Characterisation of forces exerted by the entire hand during the power grip: effect of the handle diameter
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DOI：
10.1080/00140139.2011.652195
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发表时间：
2012-01-01
期刊：
影响因子：
2.4
通讯作者：
Vigouroux, Laurent
中科院分区：
文献类型：
--
作者：
Rossi, Jeremy;Berton, Eric;Vigouroux, Laurent
本研究的目的是分析手柄直径对最大功率抓握任务期间手施加的抓握力的影响。使用手柄测力计，结合6个仪器梁和压力图，确定由手的手掌侧施加的力，重新分组来自10个解剖部位（指尖、指骨、拇指、手掌......）的数据。该方法提供的结果为手柄直径对手施加的力的影响提供了新的见解。首先，手长/手柄直径比和最大抓握力之间的关系似乎符合U型倒曲线，手柄直径为手长的17.9%时观察到最大值。其次，研究表明，手柄直径会影响施加在手部解剖部位上的力。最后，它表明，手柄直径的影响，特别是对食指和小指的手指的力量共享。从业者总结：这项研究分析了手柄直径的影响，在最大功率的握力的手施加的握力。这项研究表明，需要测量施加在手/手柄界面上的全部力，以更好地了解手柄工具的人体工程学。我们的研究结果可以重复使用的设计师和临床医生，以开发处理工具，防止手部病变。
The objective of this study was to analyse the effect of the handle diameter on the grip forces exerted by the hand during a maximal power grip task. A handle ergometer, combining six instrumented beams and a pressure map, was used to determine the forces exerted by the palm side of the hand regrouping data from 10 anatomical sites (fingertips, phalanges, thumb, palm...). This methodology provided results giving new insight into the effect of the handle diameter on the forces exerted by the hand. First, it appeared that the relationship between the hand length/handle diameter ratio and the maximal grip force fit a U-inverted curve with maximal values observed for a handle diameter measuring 17.9% of the hand length. Second, it was showed that the handle diameter influenced the forces exerted on the anatomical sites of the hand. Finally, it was showed that the handle diameter influenced the finger force sharing particularly for the index and the little fingers.Practitioner Summary: This study analysed the effect of the handle diameter on the grip forces exerted by the hand during a maximal power grip force. This study showed that measurement of the totality of the forces exerted at the hand/handle interface is needed to better understand the ergonomics of handle tools. Our results could be re-used by designers and clinicians in order to develop handle tools which prevent hand pathologies.