W415 脳卒中片麻痺者における足関節痙性と短下肢装具の設計要件(装具)(シンポジウム : 福祉工学)

概要

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This article discusses several mechanical factors concerning with ankle foot orthosis(AFO) design from the viewpoint of ankle joint moment by spasticity. The plantar flexion is a typical feature at the spastic ankle joint in hemiplegic patients, and the spasticity-induced moment is a key for appropriate AFO characteristics. The spastic flexion moment of patient and the joint stiffness of typical AFOs are investigated, and their relationship is considered. The design factors expected for the AFO joint are discussed for each phase in level walking, and an AFO with switching stiffness is examined in this context in order to guarantee sufficient toe clearance in swing phase and to enable smooth transition in early stance phase.
一般社団法人日本機械学会の論文
2001-08-03