手套对手部运动的影响:降低抓握动作的准确性

The Effect of Gloves on Hand Movement:Reducing the Accuracy of Grasp

目的通过比较被试在裸手、戴薄手套、厚手套3种情况下完成抓握、指点动作的运动指标,分析不同厚度手套对速度-准确性权衡的影响,为航天手套的设计提供建议和参考意义。方法研究招募了40名大学生,让被试分别用左手、右手在3种不同实验处理下完成抓握和指点任务,分析不同厚度手套对被试动作的反应时、最大抓握孔径、峰值速度和运动时的影响。结果手套厚度在抓握任务中的最大抓握孔径和指点任务中的运动时间上具有统计学意义(P<0.05)。结论手套厚度会影响被试抓握动作的准确性,但是不影响动作的敏捷性/速度;同时手套厚度会影响指点动作的运动时间。

Objective Experiments were designed to analyze the effect of different thickness gloves on speed-accuracy tradeoff by evaluating the movement indexes of grasping and pointing in three situations of bare hands,wearing thin gloves and thick gloves,which provided suggestions and reference for the design of aerospace gloves.Methods In this study,40 students were recruited to complete grasping and pointing tasks with their left and right hands under three different experimental situations,and compared the effect of reaction time,peak grip aperture,speed of participants'movement and movement time.Results The thickness of gloves had statistical significance on peak grip aperture and movement time in pointing task(P<0.05).Conclusion The thickness of gloves affected the accuracy of grasping action,but did not affect the agility/speed of movement;meanwhile,the thickness of gloves affected the movement time of pointing.