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首页> 外文期刊>Gait & posture >Centre of pressure displacements in trans-femoral amputees during gait.
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Centre of pressure displacements in trans-femoral amputees during gait.

机译：跨步截肢者步态时压力位移的中心。

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摘要

The aim of this study was to describe and quantify centre of pressure (CoP) displacement during walking in 12 unilateral trans-femoral amputees who had worn a prosthesis for at least 10 years. All subjects wore the same type of prosthesis and seven healthy subjects acted as controls. The CoP was acquired by an F-scan system and the displacements along the longitudinal axis of the foot versus time were quantified. An asymmetry of both temporal and spatial parameters of CoP patterns occurred between the sound and the prosthetic foot. The double support time and the time during which the CoP remained in the heel and mid-foot region were longer for the prosthetic limb. Conversely, the stance phase was longer for the sound limb, as was the time spent by the CoP in the forefoot. There was a redistribution of the time during which the CoP remained within the different zones of the sound foot with respect to the normal feet of the control subjects. The asymmetry seen in trans-femoral amputee stance is due not only to an abnormal spatio-temporal distribution of the CoP under the prosthetic leg, but also to a modification of the spatio-temporal distribution of the CoP under the sound foot compared to the normal foot. We conclude that an adaptation occurs in the control of the stance phase on the sound side during amputee gait.
机译：这项研究的目的是描述和量化佩戴假体至少10年的12名单侧经股截肢者的行走过程中的压力中心（CoP）位移。所有受试者都穿着相同类型的假体，并且有七名健康受试者作为对照。通过F扫描系统获取CoP，并量化沿脚的纵轴的位移与时间的关系。 CoP模式的时间和空间参数的不对称发生在声音和假足之间。对于假肢，双支撑时间和CoP停留在脚后跟和脚中区域的时间更长。相反，对于健全的肢体来说，站立阶段要更长一些，就像CoP在前脚所花费的时间一样。重新分配了CoP相对于正常人的正常脚停留在健全脚的不同区域内的时间。经股截肢者的不对称性不仅是由于假肢下CoP的时空分布异常，而且是由于与正常脚相比CoP在声脚下的时空分布发生了变化脚丫子。我们得出结论，在截肢步态期间，在声音侧的姿态阶段控制中会发生适应。

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