Stabilization of FES-induced Upright Posture in Paraplegics by Trunk Feedback Control

Kinya Fujita, Nozomu Hoshimiya, Yasunobu Handa, Masayoshi Ichie

Research output: Contribution to journalArticlepeer-review


A feedback sway control system of trunk inclination angles was designed to improve the postural stability of paraplegic standing by functional electrical stimulation (FES). The system was constructed of two proportional-and-derivative (PD) controllers and four co-activation stimulation maps. The performance in postural stability was clinically evaluated by applying a step disturbance while a paraplegic subject with spinal cord injury in thoracic 8th level is quietly standing between parallel bars using knee-ankle-foot-orthosis. The decrease of the backward sway magnitude by using the proposed system was statistically significant, when the 10 N backward disturbance was applied.

Original languageEnglish
Pages (from-to)56-57
Number of pages2
Journaljapanese journal of medical electronics and biological engineering
Issue number4
Publication statusPublished - 1996

ASJC Scopus subject areas

  • Biomedical Engineering


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