Agreement between the spatiotemporal gait parameters from two different wearable devices and high-speed video analysis

Felipe García-Pinillos, Pedro Á Latorre-Román, Víctor M Soto-Hermoso, Juan A Párraga-Montilla, Antonio Pantoja-Vallejo, Rodrigo Ramírez-Campillo and Luis E Roche-Seruendo

PLOS ONE, 2019, vol. 14, issue 9, 1-11

Abstract: This study aimed to evaluate the concurrent validity of two different inertial measurement units for measuring spatiotemporal parameters during running on a treadmill, by comparing data with a high-speed video analysis (VA) at 1,000 Hz. Forty-nine endurance runners performed a running protocol on a treadmill at comfortable velocity (i.e., 3.25 ± 0.36 m.s-1). Those wearable devices (i.e., Stryd™ and RunScribe™ systems) were compared to a high-speed VA, as a reference system for measuring spatiotemporal parameters (i.e. contact time [CT], flight time [FT], step frequency [SF] and step length [SL]) during running at comfortable velocity. The pairwise comparison revealed that the Stryd™ system underestimated CT (5.2%, p 0.81). The Bland-Altman plots revealed heteroscedasticity of error (r2 = 0.166) for the CT from the Stryd™ system, whereas no heteroscedasticity of error (r2

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0222872

DOI: 10.1371/journal.pone.0222872

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