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Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running

The present study aimed to investigate the inter-unit consistency and validity of multiple 10-Hz Catapult Global Navigation Satellite System (GNSS) units in measuring straight-line sprint distances and speeds. A total of 13 participants performed one 45.72-m linear sprint at maximum effort while wea...

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Autores principales: Chahal, Amandeep Kaur, Lim, Jolene Ziyuan, Pan, Jing-Wen, Kong, Pui Wah
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914642/
https://www.ncbi.nlm.nih.gov/pubmed/35271035
http://dx.doi.org/10.3390/s22051888
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author Chahal, Amandeep Kaur
Lim, Jolene Ziyuan
Pan, Jing-Wen
Kong, Pui Wah
author_facet Chahal, Amandeep Kaur
Lim, Jolene Ziyuan
Pan, Jing-Wen
Kong, Pui Wah
author_sort Chahal, Amandeep Kaur
collection PubMed
description The present study aimed to investigate the inter-unit consistency and validity of multiple 10-Hz Catapult Global Navigation Satellite System (GNSS) units in measuring straight-line sprint distances and speeds. A total of 13 participants performed one 45.72-m linear sprint at maximum effort while wearing all eight GNSS units at once. Total run distance and peak speed recorded using GNSS units during the sprint duration were extracted for analysis. Sprint time and peak speed were also obtained from video recordings as reference values. Inter-unit consistency was assessed using intraclass correlation coefficients (ICC) and standard errors of measurements (SEM). For a validity test, one-sample t-tests were performed to compare each GNSS unit’s distance with the known distance. Additionally, Wilcoxon signed-rank tests were performed to compare each unit’s peak speed with the reference peak speed measured using video analysis. Results showed poor inter-unit consistency for both distance (ICC = 0.131; SEM = 8.8 m) and speed (ICC = 0.323; SEM 1.3 m/s) measurements. For validity, most units recorded a total distance (44.50 m to 52.69 m) greater than the known distance of 45.72 m and a lower peak speed (7.25 (0.51) m/s) than the video-based reference values (7.78 (0.90) m/s). The present findings demonstrate that there exist variations in distance and speed measurements among different units of the same GNSS system during straight-line sprint running. Practitioners should be aware of the window of errors associated with GNSS measurements and interpret the results with caution. When making comparisons over a season, players should wear the same unit every time if logistically possible.
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spelling pubmed-89146422022-03-12 Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running Chahal, Amandeep Kaur Lim, Jolene Ziyuan Pan, Jing-Wen Kong, Pui Wah Sensors (Basel) Article The present study aimed to investigate the inter-unit consistency and validity of multiple 10-Hz Catapult Global Navigation Satellite System (GNSS) units in measuring straight-line sprint distances and speeds. A total of 13 participants performed one 45.72-m linear sprint at maximum effort while wearing all eight GNSS units at once. Total run distance and peak speed recorded using GNSS units during the sprint duration were extracted for analysis. Sprint time and peak speed were also obtained from video recordings as reference values. Inter-unit consistency was assessed using intraclass correlation coefficients (ICC) and standard errors of measurements (SEM). For a validity test, one-sample t-tests were performed to compare each GNSS unit’s distance with the known distance. Additionally, Wilcoxon signed-rank tests were performed to compare each unit’s peak speed with the reference peak speed measured using video analysis. Results showed poor inter-unit consistency for both distance (ICC = 0.131; SEM = 8.8 m) and speed (ICC = 0.323; SEM 1.3 m/s) measurements. For validity, most units recorded a total distance (44.50 m to 52.69 m) greater than the known distance of 45.72 m and a lower peak speed (7.25 (0.51) m/s) than the video-based reference values (7.78 (0.90) m/s). The present findings demonstrate that there exist variations in distance and speed measurements among different units of the same GNSS system during straight-line sprint running. Practitioners should be aware of the window of errors associated with GNSS measurements and interpret the results with caution. When making comparisons over a season, players should wear the same unit every time if logistically possible. MDPI 2022-02-28 /pmc/articles/PMC8914642/ /pubmed/35271035 http://dx.doi.org/10.3390/s22051888 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chahal, Amandeep Kaur
Lim, Jolene Ziyuan
Pan, Jing-Wen
Kong, Pui Wah
Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running
title Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running
title_full Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running
title_fullStr Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running
title_full_unstemmed Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running
title_short Inter-Unit Consistency and Validity of 10-Hz GNSS Units in Straight-Line Sprint Running
title_sort inter-unit consistency and validity of 10-hz gnss units in straight-line sprint running
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914642/
https://www.ncbi.nlm.nih.gov/pubmed/35271035
http://dx.doi.org/10.3390/s22051888
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