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    Validation of a smartphone gait analysis system

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    Authors
    Hammoud, Ali
    Duchêne, Jacques
    Abou-Ghaida, Hussein
    Mottet, Serge
    Goujon, Jean-Marc
    Hewson, David
    Affiliation
    University of Technology of Troyes
    Issue Date
    2015-12-31
    Subjects
    frailty
    complexity
    smartphone
    accelerometers
    
    Metadata
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    Other Titles
    IFMBE Proceedings
    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.
    Citation
    Hammoud A, Duchene J, Abou-Ghaida H, Mottet S, Goujon JM, Hewson DJ (2015) 'Validation of a smartphone gait analysis system', 6th European Conference of the International Federation for Medical and Biological Engineering - , Springer.
    Publisher
    Springer
    Journal
    5TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING, PTS 1 AND 2
    URI
    http://hdl.handle.net/10547/623444
    DOI
    10.1007/978-3-319-11128-5_226
    Additional Links
    https://link.springer.com/chapter/10.1007/978-3-319-11128-5_226
    Type
    Conference papers, meetings and proceedings
    Language
    en
    ISSN
    1680-0737
    ae974a485f413a2113503eed53cd6c53
    10.1007/978-3-319-11128-5_226
    Scopus Count
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    Health

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