Gait Recovery in Healthy Subjects: Perturbations to the Knee Motion with a Smart Knee Brace.

Gait Recovery in Healthy Subjects: Perturbations to the Knee Motion with a Smart Knee Brace.
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健康受试者的步态恢复:智能护膝对膝关节运动的干扰。

DOI:
10.1109/aim.2010.5695918
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发表时间:
2010
期刊:
IEEE/ASME International Conference on Advanced Intelligent Mechatronics : [proceedings]. IEEE/ASME International Conference on Advanced Intelligent Mechatronics
影响因子:
--
通讯作者:
Agrawal,SunilK
Agrawal,SunilK
中科院分区:
--
文献类型:
--
作者:
Temel,Mehmet;Rudolph,KatherineS;Agrawal,SunilK

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智能膝关节支架(SKB)旨在为行走过程中的人类膝关节提供受控扰动。然后使用人类行走的动态模型来评估人类施加的关节扭矩,以假设人类神经肌肉系统如何调节关节扭矩作为对步态上引起的扰动的响应。我们的研究结果表明,神经肌肉对扰动的反应可以合理地很好地表征模型中包括以下特征:(i)正常步态在没有扰动的情况下,(ii)纠正扭矩在一个关节在该关节和其他关节的错误,(iii)响应的特征时移。我们认为,这些参数可以用来表征受试者谁是更容易跌倒的步态扰动。
Smart Knee Brace (SKB) is designed to provide controlled perturbations to the human knee during walking. A dynamic model of human walking is then used to evaluate the human applied joint torques to hypothesize how the human neuro-muscular system modulates the joint torques as a response to the perturbations caused on the gait. Our results show that the neuro-muscular response to perturbations can be reasonably well characterized by including the following features in the model: (i) normal gait in the absence of perturbation, (ii) corrective torque at a joint in response to the error at that joint and other joints, (iii) a characteristic time shift in the response. We believe that these parameters can be used to characterize subjects who are more prone to falling under gait perturbations.
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