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Rapid Directional Change Degrades GPS Distance Measurement Validity during Intermittent Intensity Running

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  • Jonathan C Rawstorn
  • Ralph Maddison
  • Ajmol Ali
  • Andrew Foskett
  • Nicholas Gant

Abstract

Use of the Global Positioning System (GPS) for quantifying athletic performance is common in many team sports. The effect of running velocity on measurement validity is well established, but the influence of rapid directional change is not well understood in team sport applications. This effect was systematically evaluated using multidirectional and curvilinear adaptations of a validated soccer simulation protocol that maintained identical velocity profiles. Team sport athletes completed 90 min trials of the Loughborough Intermittent Shuttle-running Test movement pattern on curvilinear, and multidirectional shuttle running tracks while wearing a 5 Hz (with interpolated 15 Hz output) GPS device. Reference total distance (13 200 m) was systematically over- and underestimated during curvilinear (2.61±0.80%) and shuttle (−3.17±2.46%) trials, respectively. Within-epoch measurement uncertainty dispersion was widest during the shuttle trial, particularly during the jog and run phases. Relative measurement reliability was excellent during both trials (Curvilinear r = 1.00, slope = 1.03, ICC = 1.00; Shuttle r = 0.99, slope = 0.97, ICC = 0.99). Absolute measurement reliability was superior during the curvilinear trial (Curvilinear SEM = 0 m, CV = 2.16%, LOA ± 223 m; Shuttle SEM = 119 m, CV = 2.44%, LOA ± 453 m). Rapid directional change degrades the accuracy and absolute reliability of GPS distance measurement, and caution is recommended when using GPS to quantify rapid multidirectional movement patterns.

Suggested Citation

  • Jonathan C Rawstorn & Ralph Maddison & Ajmol Ali & Andrew Foskett & Nicholas Gant, 2014. "Rapid Directional Change Degrades GPS Distance Measurement Validity during Intermittent Intensity Running," PLOS ONE, Public Library of Science, vol. 9(4), pages 1-6, April.
    • Handle: RePEc:plo:pone00:0093693
    DOI: 10.1371/journal.pone.0093693
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    References listed on IDEAS

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    1. Daniel Hiscock & Brian Dawson & Jarryd Heasman & Peter Peeling, 2012. "Game movements and player performance in the Australian Football League," International Journal of Performance Analysis in Sport, Taylor & Francis Journals, vol. 12(3), pages 531-545, December.
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    Cited by:

    1. Jonas Lutz & Daniel Memmert & Dominik Raabe & Rolf Dornberger & Lars Donath, 2019. "Wearables for Integrative Performance and Tactic Analyses: Opportunities, Challenges, and Future Directions," IJERPH, MDPI, vol. 17(1), pages 1-26, December.
    2. Daniel Linke & Daniel Link & Martin Lames, 2018. "Validation of electronic performance and tracking systems EPTS under field conditions," PLOS ONE, Public Library of Science, vol. 13(7), pages 1-19, July.
    3. Eduard Pons & Tomás García-Calvo & Ricardo Resta & Hugo Blanco & Roberto López del Campo & Jesús Díaz García & Juan José Pulido, 2019. "A comparison of a GPS device and a multi-camera video technology during official soccer matches: Agreement between systems," PLOS ONE, Public Library of Science, vol. 14(8), pages 1-12, August.

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