Validity and reliability of a standalone low-end 50-Hz GNSS receiver during running

Johnny Padulo, Enzo Iuliano, Gabriel Brisola, Antonio Dello Iacono, Alessandro M. Zagatto, Corrado Lupo, Thomas Fuglsang, Luca P. Ardigò, Dražen Čular

Research output: Contribution to journalArticle

Abstract

The aim of the investigation was to verify the validity and reliability of a low-end 50-Hz Global Navigation Satellite System receiver (GNSSr) for different soccer-specific run distances and average speed assessments. Six soccer players were assessed on two different days while performing eight different running paths with changes of direction for a final total of 44 runs. During the runs, each participant was equipped with the GNSSr, while the time for each single run was recorded using a photocell gate. Reference vs. receiver assessment correspondences for distance and average speed were evaluated by calculating the standard error of the estimate (SEE), coefficient of variation (CV), and mean bias. Residual vs. predicted value comparison was performed by means of Bland-Altman plots. Finally, calculating the intra-class correlations coefficient (ICC) assessed the test-retest reliability of the measurement. Receiver distance assessment showed an SEE of 0.52 m (0.73%), and mean bias of 0.06 m. Receiver average speed assessment showed an SEE of 0.02 m·s-1 (0.74%) and mean bias of 0.001 m·s-1. The Bland-Altman plot showed a small difference between the two assessments with the 95% limits of agreement=±1.08 m/0.046 m·s-1. Receiver distance/speed assessment was found to be reliable, with ICC=0.999. In spite of its low cost, the new low-end GNSSr provides valid and reliable assessments of distance and average speed for young adults performing several standardized running actions of differing lengths within delimited setup spaces.
Original languageEnglish
Pages (from-to)75-80
Number of pages6
JournalBiology of Sport
Volume36
Issue number1
Early online date12 Dec 2018
DOIs
Publication statusE-pub ahead of print - 12 Dec 2018
Externally publishedYes

Fingerprint

Soccer
Reproducibility of Results
Running
Young Adult
Costs and Cost Analysis
Direction compound

Keywords

  • assessment
  • team sport
  • running performance
  • sport technology
  • wearable device

Cite this

Padulo, Johnny ; Iuliano, Enzo ; Brisola, Gabriel ; Dello Iacono, Antonio ; Zagatto, Alessandro M. ; Lupo, Corrado ; Fuglsang, Thomas ; Ardigò, Luca P. ; Čular, Dražen. / Validity and reliability of a standalone low-end 50-Hz GNSS receiver during running. In: Biology of Sport. 2018 ; Vol. 36, No. 1. pp. 75-80.
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Padulo, J, Iuliano, E, Brisola, G, Dello Iacono, A, Zagatto, AM, Lupo, C, Fuglsang, T, Ardigò, LP & Čular, D 2018, 'Validity and reliability of a standalone low-end 50-Hz GNSS receiver during running' Biology of Sport, vol. 36, no. 1, pp. 75-80. https://doi.org/10.5114/biolsport.2019.79974

Validity and reliability of a standalone low-end 50-Hz GNSS receiver during running. / Padulo, Johnny; Iuliano, Enzo; Brisola, Gabriel; Dello Iacono, Antonio; Zagatto, Alessandro M.; Lupo, Corrado; Fuglsang, Thomas ; Ardigò, Luca P.; Čular, Dražen.

In: Biology of Sport, Vol. 36, No. 1, 12.12.2018, p. 75-80.

Research output: Contribution to journalArticle

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AU - Padulo, Johnny

AU - Iuliano, Enzo

AU - Brisola, Gabriel

AU - Dello Iacono, Antonio

AU - Zagatto, Alessandro M.

AU - Lupo, Corrado

AU - Fuglsang, Thomas

AU - Ardigò, Luca P.

AU - Čular, Dražen

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KW - team sport

KW - running performance

KW - sport technology

KW - wearable device

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