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Comparison between Two Different Device Models 18 Hz GPS Used for Time–Motion Analyses in Ecological Testing of Football

Author

Listed:
  • Jesus Vicente Gimenez

    (School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón (Madrid), Spain)

  • Jorge Garcia-Unanue

    (IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, 45071 Toledo, Spain)

  • Archit Navandar

    (School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón (Madrid), Spain)

  • David Viejo-Romero

    (School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón (Madrid), Spain)

  • Javier Sanchez-Sanchez

    (School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón (Madrid), Spain)

  • Leonor Gallardo

    (IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, 45071 Toledo, Spain)

  • Antonio Hernandez-Martin

    (IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, 45071 Toledo, Spain)

  • Jose Luis Felipe

    (School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón (Madrid), Spain)

Abstract

Background: The aim of this study was to compare the validity of two different GPS device models used for time–motion analyses in ecological testing of football. Methods: Ten healthy male players from a Spanish university football team participated in this study. The team sport simulation circuit (TSCC) used was based on previous research examining the validity and interunit reliability of different GPS systems. Participants were required to complete eight laps of the TSSC, resulting in a total distance of 1320 m. The GPS units used for the current study were the 18 Hz StatsSport Apex Pro and 18 Hz RealTrack WIMU Pro. Participants were required to wear either of the two GPS units during the test. To establish the construct validity of GPS as a measure of V max , timing lights were used as a gold standard. Results: The results clearly suggest that it is not possible to use the same 18 Hz GPS model or interchange it. The measurement can be considered precise when the noise is at least equal to or lower than the smallest worthwhile change. In this case, all standard deviation in measurement error was higher than the smallest worthwhile change. This is due to an inconsistency in the data processing of each trademark. Conclusions: It is important to prevent a club using different GPS trademarks at the same time, since it is not possible to compare in any case any type of result obtained between different trademarks.

Suggested Citation

  • Jesus Vicente Gimenez & Jorge Garcia-Unanue & Archit Navandar & David Viejo-Romero & Javier Sanchez-Sanchez & Leonor Gallardo & Antonio Hernandez-Martin & Jose Luis Felipe, 2020. "Comparison between Two Different Device Models 18 Hz GPS Used for Time–Motion Analyses in Ecological Testing of Football," IJERPH, MDPI, vol. 17(6), pages 1-9, March.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:6:p:1912-:d:332846
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    Cited by:

    1. Lidia B. Alejo & Jaime Gil-Cabrera & Almudena Montalvo-Pérez & David Barranco-Gil & Jaime Hortal-Fondón & Archit Navandar, 2021. "Performance Parameters in Competitive Alpine Skiing Disciplines of Slalom, Giant Slalom and Super-Giant Slalom," IJERPH, MDPI, vol. 18(5), pages 1-11, March.

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