Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer

Abstract The aim of this study was to analyze the degree of agreement comparing number and distance covered in different acceleration and deceleration sections registered by a video tracking system (MEDIACOACH) and a GPS device (WIMU PRO) during official competition. Data from a Spanish professional...

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Autores principales:	Eduard Pons, Tomás García-Calvo, Francesc Cos, Ricardo Resta, Hugo Blanco, Roberto López del Campo, Jesús Díaz-García, Juan José Pulido-González
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3a0cd23f817b4e4187187e0771029c41
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spelling	oai:doaj.org-article:3a0cd23f817b4e4187187e0771029c412021-12-02T17:25:33ZIntegrating video tracking and GPS to quantify accelerations and decelerations in elite soccer10.1038/s41598-021-97903-22045-2322https://doaj.org/article/3a0cd23f817b4e4187187e0771029c412021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97903-2https://doaj.org/toc/2045-2322Abstract The aim of this study was to analyze the degree of agreement comparing number and distance covered in different acceleration and deceleration sections registered by a video tracking system (MEDIACOACH) and a GPS device (WIMU PRO) during official competition. Data from a Spanish professional club were registered over the course of a season. First, the descriptive statistics presented more bursts of accelerations and decelerations in WIMU PRO than in MEDIACOACH, whereas the distances covered recorded by both systems were similar. Second, negative relationships were found (i.e., negative bias) comparing WIMU PRO to MEDIACOACH in the number of accelerations and decelerations between 0/1 m/s2 and ½ m/s2 (p < 0.05), and in the distances covered in accelerations and decelerations (p < 0.05) between 0/1 m/s2 and in accelerations and decelerations registered between 2/3 m/s2 and more than 3 m/s2. Moreover, the differences in means (i.e., standardized mean bias) across the two devices were trivial (> 0.19) and small (0.2–0.59) for most variables. The standardized typical errors in the estimate (TEE) were moderate (0.3–0.59) and small to moderate (0.1–0.29 to 0.3–0.59), respectively. Also, the Intra class Correlation Coefficients (ICCs) for agreement and consistency between systems showed good and excellent values (> 0.90). The magnitude of change in means (%) between systems, defined as the percentage change between the numbers or values, was below 14% and 7% for number and distances covered, respectively. All scores in the smallest worthwhile change were lower than 9% and in the coefficients of variation were lower than 95% and 15%, respectively. Thus, both systems demonstrated an acceptable degree of agreement and could be useful in analyzing players’ acceleration demands in professional soccer. However, caution is required when interpreting the results and a comparison with a gold standard is required in order to validate both systems.Eduard PonsTomás García-CalvoFrancesc CosRicardo RestaHugo BlancoRoberto López del CampoJesús Díaz-GarcíaJuan José Pulido-GonzálezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Eduard Pons Tomás García-Calvo Francesc Cos Ricardo Resta Hugo Blanco Roberto López del Campo Jesús Díaz-García Juan José Pulido-González Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer
description	Abstract The aim of this study was to analyze the degree of agreement comparing number and distance covered in different acceleration and deceleration sections registered by a video tracking system (MEDIACOACH) and a GPS device (WIMU PRO) during official competition. Data from a Spanish professional club were registered over the course of a season. First, the descriptive statistics presented more bursts of accelerations and decelerations in WIMU PRO than in MEDIACOACH, whereas the distances covered recorded by both systems were similar. Second, negative relationships were found (i.e., negative bias) comparing WIMU PRO to MEDIACOACH in the number of accelerations and decelerations between 0/1 m/s2 and ½ m/s2 (p < 0.05), and in the distances covered in accelerations and decelerations (p < 0.05) between 0/1 m/s2 and in accelerations and decelerations registered between 2/3 m/s2 and more than 3 m/s2. Moreover, the differences in means (i.e., standardized mean bias) across the two devices were trivial (> 0.19) and small (0.2–0.59) for most variables. The standardized typical errors in the estimate (TEE) were moderate (0.3–0.59) and small to moderate (0.1–0.29 to 0.3–0.59), respectively. Also, the Intra class Correlation Coefficients (ICCs) for agreement and consistency between systems showed good and excellent values (> 0.90). The magnitude of change in means (%) between systems, defined as the percentage change between the numbers or values, was below 14% and 7% for number and distances covered, respectively. All scores in the smallest worthwhile change were lower than 9% and in the coefficients of variation were lower than 95% and 15%, respectively. Thus, both systems demonstrated an acceptable degree of agreement and could be useful in analyzing players’ acceleration demands in professional soccer. However, caution is required when interpreting the results and a comparison with a gold standard is required in order to validate both systems.
format	article
author	Eduard Pons Tomás García-Calvo Francesc Cos Ricardo Resta Hugo Blanco Roberto López del Campo Jesús Díaz-García Juan José Pulido-González
author_facet	Eduard Pons Tomás García-Calvo Francesc Cos Ricardo Resta Hugo Blanco Roberto López del Campo Jesús Díaz-García Juan José Pulido-González
author_sort	Eduard Pons
title	Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer
title_short	Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer
title_full	Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer
title_fullStr	Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer
title_full_unstemmed	Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer
title_sort	integrating video tracking and gps to quantify accelerations and decelerations in elite soccer
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3a0cd23f817b4e4187187e0771029c41
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Integrating video tracking and GPS to quantify accelerations and decelerations in elite soccer

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