Please use this identifier to cite or link to this item: https://repositorio.usj.es/handle/123456789/267

Title: Agreement between the spatiotemporal gait parameters from two different wearable devices and high-speed video analysis
Authors: García-Pinillos, Felipe ORCID RESEARCHERID SCOPUSID
Latorre-Román, Pedro Á. ORCID SCOPUSID
Soto-Hermoso, Víctor M. ORCID RESEARCHERID SCOPUSID
Párraga-Montilla, Juan A ORCID RESEARCHERID SCOPUSID
Ramírez-Campillo, Rodrigo ORCID RESEARCHERID SCOPUSID
Roche-Seruendo, Luis Enrique ORCID RESEARCHERID
Keywords: RunScribe™; Stryd™; Spatiotemporal parameters; Running at comfortable velocity
Issue Date: 24-Sep-2019
Publisher: Daniel Boullosa, University of Brasilia, BRAZIL
Citation: García-Pinillos F, Latorre-Román PÁ, Soto-Hermoso VM, Párraga-Montilla JA, Pantoja-Vallejo A, Ramírez-Campillo R, et al. (2019) Agreement between the spatiotemporal gait parameters from two different wearable devices and high-speed video analysis. PLoS ONE 14(9): e0222872. https://doi.org/10.1371/journal.pone.0222872
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 < 0.001) and overestimated FT (15.1%, p < 0.001) compared to the VA; whereas the RunScribe™ system underestimated CT (2.3%, p = 0.009). No significant differences were observed in SF and SL between the wearable devices and VA. The intra class correlation coefficient (ICC) revealed an almost perfect association between both systems and high-speed VA (ICC > 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 < 0.1) was revealed in the rest of parameters. In conclusion, the results obtained suggest that both foot pods are valid tools for measuring spatiotemporal parameters during running on a treadmill at comfortable velocity. If the limits of agreement of both systems are considered in respect to high-speed VA, the RunScribe™ seems to be a more accurate system for measuring temporal parameters and SL than the Stryd™ system.
URI: https://repositorio.usj.es/handle/123456789/267
ISSN: 1932-6203
Appears in Collections:Artículos de revistas

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