Design and Evaluation of a Wearable Powered Foot Orthosis with Metatarsophalangeal Joint.
Design and Evaluation of a Wearable Powered Foot Orthosis with Metatarsophalangeal Joint.
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DOI：
10.1155/2018/9289505
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发表时间：
2018
影响因子：
2.2
通讯作者：
Wu M
中科院分区：
文献类型：
--
作者：
Liu Y;Zang X;Zhang N;Wu M
跖趾关节（MTP）在人体运动中起着重要作用。与正常行走相比，MTP关节功能受限或丧失会导致行走速度降低，行走平衡差，代谢能量消耗增加。然而，现有的足部矫形器侧重于维持踝关节的活动，而没有辅助MTP关节。为了提高下肢障碍患者的行走性能，设计并制作了一种可穿戴式动力足矫形器（WPFO），该矫形器采用驱动式MTP关节。在三名非残疾受试者身上进行的初步实验证明了WPFO在行走过程中为MTP关节提供正确时间的背屈和足底屈辅助的功能和能力。这些结果也表明WPFO在某些康复应用和临床治疗中具有广阔的应用前景。
The metatarsophalangeal (MTP) joints play critical roles in human locomotion. Functional restriction or loss of MTP joints will lead to lower walking speed, poorer walking balance, and more consumed metabolic energy cost compared with normal walking. However, existing foot orthoses are focused on maintaining the movement of the ankle joint, without assisting the MTP joints. In this paper, in order to improve the walking performance of people with lower limb impairments, a wearable powered foot orthosis (WPFO) which has actuated MTP joint is designed and constructed. Preliminary experiments on three nondisabled subjects demonstrated functionality and capabilities of the WPFO to provide correctly timed dorsiflexion and plantar flexion assistance at the MTP joint during walking. These results also suggest that the WPFO could offer promise in certain rehabilitation applications and clinical treatment.
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