假肢足部的比较翻滚分析

Comparative roll-over analysis of prosthetic feet.

作者信息

Curtze Carolin, Hof At L, van Keeken Helco G, Halbertsma Jan P K, Postema Klaas, Otten Bert

机构信息

Center for Rehabilitation, University Medical Center Groningen, Groningen, The Netherlands.

出版信息

J Biomech. 2009 Aug 7;42(11):1746-53. doi: 10.1016/j.jbiomech.2009.04.009. Epub 2009 May 15.

DOI:10.1016/j.jbiomech.2009.04.009

PMID:19446814

Abstract

A prosthetic foot is a key element of a prosthetic leg, literally forming the basis for a stable and efficient amputee gait. We determined the roll-over characteristics of a broad range of prosthetic feet and examined the effect of a variety of shoes on these characteristics. The body weight of a person acting on a prosthetic foot during roll-over was emulated by means of an inverted pendulum-like apparatus. Parameters measured were the effective radius of curvature, the forward travel of the center of pressure, and the instantaneous radius of curvature of the prosthetic feet. Finally, we discuss how these parameters relate to amputee gait.

摘要

假脚是假肢腿部的关键部件，实际上它构成了截肢者稳定且高效步态的基础。我们确定了多种假脚的翻转特性，并研究了各种鞋子对这些特性的影响。在翻转过程中作用于假脚的人体重量通过一个类似倒立摆的装置来模拟。测量的参数包括有效曲率半径、压力中心的向前移动距离以及假脚的瞬时曲率半径。最后，我们讨论这些参数与截肢者步态的关系。