PDF(Pubmed)
Abstract：
The aim of this review article is to appraise the design and functionality of above-knee prosthetic legs. So far, various transfemoral prosthetic legs are found to offer a stable gait to amputees but are limited to laboratories. The commercially available prosthetic legs are not reliable and comfortable enough to satisfy amputees. There is a dire need for creating a powered prosthetic knee joint that could address amputees\' requirements. To pinpoint the gap in transfemoral prosthetic legs, prosthetic knee unit model designs, control frameworks, kinematics, and gait evaluations are concentrated. Ambulation exercises, ground-level walking, running, and slope walking are considered to help identify research gaps and areas where existing prostheses can be ameliorated. The results show that above-knee amputees can more effectively manage their issues with the aid of an active prosthesis, capable of reliable gait. To accomplish the necessary control, closed loop controllers and volitional control are integral parts. Future studies should consider designing a transfemoral electromechanical prosthesis based on electromyographic (EMG) signals to better predict the amputee\'s intent and control in accordance with that intent.
摘要：
这篇评论文章的目的是评估膝上假肢的设计和功能。到目前为止,发现各种经股假肢为截肢者提供稳定的步态，但仅限于实验室。市售的假肢腿不够可靠和舒适以满足截肢者的需求。迫切需要创造一种可以满足截肢者要求的动力假肢膝关节。为了确定经股假肢的间隙,假肢膝关节单元模型设计，控制框架，运动学,步态评估集中。步行练习，地面行走，跑步,和斜坡行走被认为有助于确定研究差距和现有的假体可以改善的领域。结果表明，膝上截肢者可以在主动假体的帮助下更有效地解决他们的问题，能够可靠的步态。为了完成必要的控制，闭环控制器和卷积控制是不可缺少的部分。未来的研究应考虑设计基于肌电图（EMG）信号的经股机电假体，以更好地预测截肢者的意图并根据该意图进行控制。
