Double-stopped ankle-foot orthosis in flaccid peroneal and tibial paralysis: Evaluation of function

J. F. Lehmann, M. J. Ko, B. J. DeLateur

Research output: Contribution to journalArticle

Abstract

This study was undertaken to evaluate how effectively an ankle-foot orthosis can substitute for paralyzed musculature, and to determine the forces it sustains in so doing. Timing of the events of gait, the ground reaction forces, their magnitude and location, and the brace moments were studied. Midstance phase was found lengthened at the expense of push-off phase. During push-off, vertical loading and posterior shear were markedly reduced by tibial block. Also, the dorsiflexion moment in the orthosis was correspondingly increased. The orthosis was found to substitute for muscle function in that it approximates the foot-ankle motion of heel-strike and allows a push-off substitute.

Original languageEnglish (US)
Pages (from-to)536-541
Number of pages6
JournalArchives of physical medicine and rehabilitation
Volume61
Issue number11
StatePublished - Jan 1 1980
Externally publishedYes

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

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