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Validation of a smartphone gait analysis system

  • David Hewson
    ,
  • Ali Hammoud
    ,
  • Jacques Duchêne
    ,
  • Hussein Abou-Ghaida
    ,
  • Serge Mottet
    ,
  • Jean-Marc Goujon
  • Université de technologie de Troyes
    ,
  • CNRS UMR 6082 FOTON, ENSSAT
Research Output: Chapter in Book/Report/Conference proceeding Conference contribution Peer-review

Abstract

This paper presents a validation study of a smartphone for detection of heel strike and foot flat during gait, in comparison with a validated in-shoe plantar pressure system. The aim of the study is to produce a smartphone gait analysis system that is able to estimate gait parameters in a non-controlled environment such as the home. The smartphone system using the built-in tri-axial accelerometer of the phone, and provides a reliable estimation of the number of steps and the stride-to-stride interval (ISI). Comparison with the results produced by an F-Scan mobile system showed an excellent relationship (R2=0.97). When Detrended Fluctuation Analysis was applied to the ISI calculated for each system, no significant differences were observed for a paired t-test. These findings open the way for other gait features such as gait velocity, walking distance and step length to be calculated using smartphones. Such a technique could be used to detect the loss of complexity in signals due to advanced age or disease in order to assess frailty and risk of falls in the elderly in ecological conditions.

Publication Information

Output type

Research Output: Chapter in Book/Report/Conference proceeding Conference contribution Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 910-913

Publication milestones

  • Published - 31/12/2015

Publication status

Published - 31/12/2015

Volume

45

Publisher

Springer, Japan, India, Australia, Germany, United States, United Arab Emirates, Austria, Switzerland, Italy, China, United Kingdom, Netherlands, Brazil, France, Singapore

External Publication IDs

  • handle.net: 10547/623444
  • Scopus: 84937789476

Host publication title

IFMBE Proceedings

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