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    Validity of an upper-body-mounted accelerometer to measure peak vertical and resultant force during running and change-of-direction tasks

    Access Status
    Fulltext not available
    Authors
    Wundersitz, D.
    Netto, Kevin
    Aisbett, B.
    Gastin, P.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Wundersitz, Daniel W.T. and Netto, Kevin J. and Aisbett, Brad and Gastin, Paul B. 2013. Validity of an upper-body-mounted accelerometer to measure peak vertical and resultant force during running and change-of-direction tasks. Sports Biomechanics. 12 (4): pp. 403-412.
    Source Title
    Sports Biomechanics
    DOI
    10.1080/14763141.2013.811284
    ISSN
    14763141
    URI
    http://hdl.handle.net/20.500.11937/15039
    Collection
    • Curtin Research Publications
    Abstract

    This study assessed the validity of a tri-axial accelerometer worn on the upper body to estimate peak forces during running and change-of-direction tasks. Seventeen participants completed four different running and change-of-direction tasks (0°, 45°, 90°, and 180°; five trials per condition). Peak crania-caudal and resultant acceleration was converted to force and compared against peak force plate ground reaction force (GRF) in two formats (raw and smoothed). The resultant smoothed (10 Hz) and crania-caudal raw (except 180°) accelerometer values were not significantly different to resultant and vertical GRF for all running and change-of-direction tasks, respectively. Resultant accelerometer measures showed no to strong significant correlations (r = 0.00–0.76) and moderate to large measurement errors (coefficient of variation [CV] = 11.7–23.9%). Crania-caudal accelerometer measures showed small to moderate correlations (r = − 0.26 to 0.39) and moderate to large measurement errors (CV = 15.0–20.6%). Accelerometers, within integrated micro-technology tracking devices and worn on the upper body, can provide a relative measure of peak impact force experienced during running and two change-of-direction tasks (45° and 90°) provided that resultant smoothed values are used.

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