Gait identification using inertial sensors for control of adaptive knee orthosis device

Yaojung Shiao, Ting Yue Chang, Chien Hung Lai

Research output: Contribution to journalArticlepeer-review

Abstract

People with gait movement problems usually need the assistance of a knee orthosis device. A well-designed active or semiactive knee orthosis (SAKO) device can provide proper resistance torque to support an injured knee. Thus, gait phase or gait movement must be identified precisely for the control algorithm to determine the correct output torque command. In this research, we investigate the application of an inertial sensor for different locations on a shoe. Three inertial sensors are attached to the heel, side, and instep of one shoe for testing. Multiaxis acceleration signals from these three sensors are measured simultaneously for several gait cycles. The test results show that the shoe lateral sensor can provide proper signals of gait acceleration for the real-time gait control of the knee orthosis device.

Original languageEnglish
Pages (from-to)1657-1665
Number of pages9
JournalSensors and Materials
Volume29
Issue number11
DOIs
Publication statusPublished - Jan 1 2017

Keywords

  • Gait
  • Gait analysis
  • Gait control
  • Inertial sensor

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

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