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    Running quietly reduces ground reaction force and vertical loading rate and alters foot strike technique

    242342.pdf (670.9Kb)
    Access Status
    Open access
    Authors
    Phan, X.
    Grisbrook, Tiffany
    Wernli, K.
    Stearne, S.
    Davey, Paul
    Ng, Leo
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Phan, X. and Grisbrook, T. and Wernli, K. and Stearne, S. and Davey, P. and Ng, L. 2016. Running quietly reduces ground reaction force and vertical loading rate and alters foot strike technique. Journal of Sports Sciences. 35 (16): pp. 1636-1642.
    Source Title
    Journal of Sports Sciences
    DOI
    10.1080/02640414.2016.1227466
    ISSN
    1466-447X
    School
    School of Physiotherapy and Exercise Science
    Remarks

    This is an Author's Original Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 03/09/2016 available online at http://www.tandfonline.com/10.1080/02640414.2016.1227466

    URI
    http://hdl.handle.net/20.500.11937/11003
    Collection
    • Curtin Research Publications
    Abstract

    This study aimed to determine if a quantifiable relationship exists between the peak sound amplitude and peak vertical ground reaction force (vGRF) and vertical loading rate during running. It also investigated whether differences in peak sound amplitude, contact time, lower limb kinematics, kinetics and foot strike technique existed when participants were verbally instructed to run quietly compared to their normal running. A total of 26 males completed running trials for two sound conditions: normal running and quiet running. Simple linear regressions revealed no significant relationships between impact sound and peak vGRF in the normal and quiet conditions and vertical loading rate in the normal condition. t-Tests revealed significant within-subject decreases in peak sound, peak vGRF and vertical loading rate during the quiet compared to the normal running condition. During the normal running condition, 15.4% of participants utilised a non-rearfoot strike technique compared to 76.9% in the quiet condition, which was corroborated by an increased ankle plantarflexion angle at initial contact. This study demonstrated that quieter impact sound is not directly associated with a lower peak vGRF or vertical loading rate. However, given the instructions to run quietly, participants effectively reduced peak impact sound, peak vGRF and vertical loading rate.

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