The Force Synergy of Human Digits in Static and Dynamic Cylindrical Grasps

Li Chieh Kuo, Shih Wei Chen, Chien Ju Lin, Wei Jr Lin, Sheng Che Lin, Fong Chin Su

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

This study explores the force synergy of human digits in both static and dynamic cylindrical grasping conditions. The patterns of digit force distribution, error compensation, and the relationships among digit forces are examined to quantify the synergetic patterns and coordination of multi-finger movements. This study recruited 24 healthy participants to perform cylindrical grasps using a glass simulator under normal grasping and one-finger restricted conditions. Parameters such as the grasping force, patterns of digit force distribution, and the force coefficient of variation are determined. Correlation coefficients and principal component analysis (PCA) are used to estimate the synergy strength under the dynamic grasping condition. Specific distribution patterns of digit forces are identified for various conditions. The compensation of adjacent fingers for the force in the normal direction of an absent finger agrees with the principle of error compensation. For digit forces in anti-gravity directions, the distribution patterns vary significantly by participant. The forces exerted by the thumb are closely related to those exerted by other fingers under all conditions. The index-middle and middle-ring finger pairs demonstrate a significant relationship. The PCA results show that the normal forces of digits are highly coordinated. This study reveals that normal force synergy exists under both static and dynamic cylindrical grasping conditions.

原文English
文章編號e60509
期刊PloS one
8
發行號3
DOIs
出版狀態Published - 2013 3月 27

All Science Journal Classification (ASJC) codes

  • 多學科

指紋

深入研究「The Force Synergy of Human Digits in Static and Dynamic Cylindrical Grasps」主題。共同形成了獨特的指紋。

引用此