Analysis of the effect of fatigue on walking gait using acceleration sensor placed on the waist

Muhammad Arif, Yasuaki Ohtaki, Ryoichi Nagatomi, Hikaru Inooka

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In this paper, we have studied the effect of fatigue on walking gait during normal walking. Acceleration of COG in lateral, vertical and anterior/posterior directions were recorded and analyzed to study the effect of the fatigue. Increase in cadence and shortening of step length were observed after the fatigue. The results also showed an increase in the RMS value of acceleration in lateral direction affecting the lateral stability during walking. The variability analysis showed that the amplitude variability is increased in lateral, vertical and anterior/posterior directions after fatigue which can be related to the weakness of the lower extremity muscles. Frequency analysis revealed that higher frequency components in the acceleration increased due to the fatigue. An increase in the wavelet entropy after fatigue showed the increase in the disorder in the vertical and anterior/posterior accelerations.

Original languageEnglish
Pages (from-to)85-95
Number of pages11
JournalEngineering Intelligent Systems
Volume18
Issue number2
Publication statusPublished - 2010 Jun
Externally publishedYes

Keywords

  • Acceleration
  • Exercise
  • Fatigue
  • Walking gait
  • Wavelet

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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