Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees

The aim of this study was to examine the acute effect of officiating a football (soccer) match on isometric knee flexion strength and passive hip flexion range-of-motion (ROM) in referees and assistant football referees. Twelve referees (25.3 ± 3.3 years) and twenty-three assistant referees (25.1 ±...

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Autores principales:	Vicente Fernández-Ruiz, Álvaro López-Samanes, Juan Del Coso, José Pino-Ortega, Javier Sánchez-Sánchez, Pablo Terrón-Manrique, Marco Beato, Víctor Moreno-Pérez
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	soccer fatigue match competition physical demands muscle injury Medicine R
Acceso en línea:	https://doaj.org/article/71280838dbd24ea8863900abcd8dc052
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spelling	oai:doaj.org-article:71280838dbd24ea8863900abcd8dc0522021-11-25T17:49:39ZInfluence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees10.3390/ijerph1822119411660-46011661-7827https://doaj.org/article/71280838dbd24ea8863900abcd8dc0522021-11-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/22/11941https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601The aim of this study was to examine the acute effect of officiating a football (soccer) match on isometric knee flexion strength and passive hip flexion range-of-motion (ROM) in referees and assistant football referees. Twelve referees (25.3 ± 3.3 years) and twenty-three assistant referees (25.1 ± 4.8 years) underwent measurements on isometric knee flexion strength and passive hip flexion ROM before and after officiating an official football match. Referees’ and assistant referees’ running patterns were monitored during the match using GPS technology. In comparison to pre-match values, referees reduced their isometric knee flexion strength (−12.36%, <i>p</i> = 0.046, Effect size [ES] = −0.36) in the non-dominant limb, while no significant differences were reported in the dominant limb (−0.75%, <i>p</i> = 0.833, ES = −0.02). No effect of the match was found in hip flexion ROM values in dominant (−4.78%, <i>p</i> = 0.102, ES = −0.15) and non-dominant limb (5.54%, <i>p</i> = 0.544, ES = 0.19). In assistant referees, the pre-to-post-match changes in isometric knee flexion strength (dominant limb −3.10%, <i>p</i> = 0.323, ES = −0.13; non-dominant limb −2.18%, <i>p</i> = 0.980, ES= 0.00) and hip flexion ROM (dominant limb 1.90% <i>p</i> = −0.816, ES = 0.13; non-dominant limb 3.22% <i>p</i> = 0.051, ES = 0.23) did not reach statistical significance. Officiating a match provoked a reduction in isometric knee flexion strength in the non-dominant limb of football referees, while no differences were reported in assistant referees.Vicente Fernández-RuizÁlvaro López-SamanesJuan Del CosoJosé Pino-OrtegaJavier Sánchez-SánchezPablo Terrón-ManriqueMarco BeatoVíctor Moreno-PérezMDPI AGarticlesoccerfatiguematch competitionphysical demandsmuscle injuryMedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 11941, p 11941 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	soccer fatigue match competition physical demands muscle injury Medicine R
spellingShingle	soccer fatigue match competition physical demands muscle injury Medicine R Vicente Fernández-Ruiz Álvaro López-Samanes Juan Del Coso José Pino-Ortega Javier Sánchez-Sánchez Pablo Terrón-Manrique Marco Beato Víctor Moreno-Pérez Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees
description	The aim of this study was to examine the acute effect of officiating a football (soccer) match on isometric knee flexion strength and passive hip flexion range-of-motion (ROM) in referees and assistant football referees. Twelve referees (25.3 ± 3.3 years) and twenty-three assistant referees (25.1 ± 4.8 years) underwent measurements on isometric knee flexion strength and passive hip flexion ROM before and after officiating an official football match. Referees’ and assistant referees’ running patterns were monitored during the match using GPS technology. In comparison to pre-match values, referees reduced their isometric knee flexion strength (−12.36%, <i>p</i> = 0.046, Effect size [ES] = −0.36) in the non-dominant limb, while no significant differences were reported in the dominant limb (−0.75%, <i>p</i> = 0.833, ES = −0.02). No effect of the match was found in hip flexion ROM values in dominant (−4.78%, <i>p</i> = 0.102, ES = −0.15) and non-dominant limb (5.54%, <i>p</i> = 0.544, ES = 0.19). In assistant referees, the pre-to-post-match changes in isometric knee flexion strength (dominant limb −3.10%, <i>p</i> = 0.323, ES = −0.13; non-dominant limb −2.18%, <i>p</i> = 0.980, ES= 0.00) and hip flexion ROM (dominant limb 1.90% <i>p</i> = −0.816, ES = 0.13; non-dominant limb 3.22% <i>p</i> = 0.051, ES = 0.23) did not reach statistical significance. Officiating a match provoked a reduction in isometric knee flexion strength in the non-dominant limb of football referees, while no differences were reported in assistant referees.
format	article
author	Vicente Fernández-Ruiz Álvaro López-Samanes Juan Del Coso José Pino-Ortega Javier Sánchez-Sánchez Pablo Terrón-Manrique Marco Beato Víctor Moreno-Pérez
author_facet	Vicente Fernández-Ruiz Álvaro López-Samanes Juan Del Coso José Pino-Ortega Javier Sánchez-Sánchez Pablo Terrón-Manrique Marco Beato Víctor Moreno-Pérez
author_sort	Vicente Fernández-Ruiz
title	Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees
title_short	Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees
title_full	Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees
title_fullStr	Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees
title_full_unstemmed	Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees
title_sort	influence of football match-play on isometric knee flexion strength and passive hip flexion range of motion in football referees and assistant referees
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/71280838dbd24ea8863900abcd8dc052
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Influence of Football Match-Play on Isometric Knee Flexion Strength and Passive Hip Flexion Range of Motion in Football Referees and Assistant Referees

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