Estimation and evaluation of upper limb endpoint stiffness and joint torques for post-stroke rehabilitation

P. R. Wang, Y. H. Chiu, M. S. Tsai, K. C. Chung

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

This research was aimed to investigate biomechanical properties via estimation of upper limb endpoint stiffness and joint torques during force targeting tasks. Sixteen able-bodied subjects were recruited in the study. A 10-N force task was conducted at right and left force directions for three upper limb postures. Hand endpoint trajectories and the response forces were recorded simultaneously for each trial. The 2x2 endpoint stiffness matrix and corresponding stiffness ellipse were determined by least squares error method. Resultant shoulder and elbow torques were also calculated by inverse kinetics. Mann-Whitney U test and Kruskal-Wallis test was used to analyze the effect of movement directions and postures on endpoint stiffness and joint torques. The results indicated that the force directions and postures have significant effects on endpoint stiffness ellipse of upper limb, the shoulder and elbow joint torques during force production tasks (p<0.05). These results demonstrate the importance of the force directions and posture during performing force targeting tasks. The future work of clinical implementation suggests that upper-limb endpoint stiffness and viscosity can be measured and compared with able-bodied subjects and poststokes.

原文English
主出版物標題World Congress on Medical Physics and Biomedical Engineering
主出版物子標題Neuroengineering, Neural Systems, Rehabilitation and Prosthetics
發行者Springer Verlag
頁面44-47
頁數4
版本9
ISBN(列印)9783642038884
DOIs
出版狀態Published - 2009
事件World Congress on Medical Physics and Biomedical Engineering: Neuroengineering, Neural Systems, Rehabilitation and Prosthetics - Munich, Germany
持續時間: 2009 九月 72009 九月 12

出版系列

名字IFMBE Proceedings
號碼9
25
ISSN(列印)1680-0737

Other

OtherWorld Congress on Medical Physics and Biomedical Engineering: Neuroengineering, Neural Systems, Rehabilitation and Prosthetics
國家/地區Germany
城市Munich
期間09-09-0709-09-12

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 生物醫學工程

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