Grip force and force sharing in two different manipulation tasks with bottles
Grip force and force sharing in two different manipulation tasks with bottles
复制标题
DOI：
10.1080/00140139.2016.1235233
复制
发表时间：
2017-01-01
期刊：
影响因子：
2.4
通讯作者：
Sancho-Bru, Joaquin L.
中科院分区：
文献类型：
--
作者：
Cepria-Bernal, Javier;Perez-Gonzalez, Antonio;Sancho-Bru, Joaquin L.
对10名右利手受试者在两种日常生活活动中的握力和分力进行了实验分析。四个不同的瓶子，装满了两个不同的高度，被操纵完成两项任务：运输和浇注。每个受试者的手都安装了8个薄的可穿戴力感应器。每个瓶子模型的握力和力分担都有显着差异。增加填充量会增加抓地力，但较轻的载荷时抓地力与负载力的比率较高。任务对力量分配有影响，但对平均握力没有影响。在倒酒任务中，拇指和无名指的贡献较高，而在运输任务中，手掌和食指的贡献较高。食指平均分力为30%，中指平均分力为29%，环指平均分力为22%，小指平均分力为19%。目的是了解瓶子的特征、灌装程度和任务对手不同区域对握力的贡献的影响。力量分享对于每个任务是不同的，瓶子的特征对握力和力量分享都有影响。
Grip force and force sharing during two activities of daily living were analysed experimentally in 10 right-handed subjects. Four different bottles, filled to two different levels, were manipulated for two tasks: transporting and pouring. Each test subject's hand was instrumented with eight thin wearable force sensors. The grip force and force sharing were significantly different for each bottle model. Increasing the filling level resulted in an increase in grip force, but the ratio of grip force to load force was higher for lighter loads. The task influenced the force sharing but not the mean grip force. The contributions of the thumb and ring finger were higher in the pouring task, whereas the contributions of the palm and the index finger were higher in the transport task. Mean force sharing among fingers was 30% for index, 29% for middle, 22% for ring and 19% for little finger.Practitioner Summary: We analysed grip force and force sharing in two manipulation tasks with bottles: transporting and pouring. The objective was to understand the effects of the bottle features, filling level and task on the contribution of different areas of the hand to the grip force. Force sharing was different for each task and the bottles features affected to both grip force and force sharing.