A method for measuring endpoint stiffness during multi-joint arm movements

E. Burdet*, R. Osu, D. W. Franklin, T. Yoshioka, T. E. Milner, M. Kawato

*この研究の対応する著者

研究成果: Article査読

125 被引用数 (Scopus)

抄録

Current methods for measuring stiffness during human arm movements are either limited to one-joint motions, or lead to systematic errors. The technique presented here enables a simple, accurate and unbiased measurement of endpoint stiffness during multi-joint movements. Using a computer-controlled mechanical interface, the hand is displaced relative to a prediction of the undisturbed trajectory. Stiffness is then computed as the ratio of restoring force to displacement amplitude. Because of the accuracy of the prediction (< 1 cm error after 200 ms) and the quality of the implementation, the movement is not disrupted by the perturbation. This technique requires only 13 as many trials to identify stiffness as the method of Gomi and Kawato (1997, Biological Cybernetics 76, 163-171) and may, therefore, be used to investigate the evolution of stiffness during motor adaptation. Copyright (C) 2000 Elsevier Science B.V.

本文言語English
ページ(範囲)1705-1709
ページ数5
ジャーナルJournal of Biomechanics
33
12
DOI
出版ステータスPublished - 2000 12月
外部発表はい

ASJC Scopus subject areas

  • 生物理学
  • 生体医工学
  • 整形外科およびスポーツ医学
  • リハビリテーション

フィンガープリント

「A method for measuring endpoint stiffness during multi-joint arm movements」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル