Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level

The aim of this investigation was to analyze significant differences in performance depending on the level of play (elite vs. amateur) in youth soccer players (under 17 years. old (U17) and U19). A cross-sectional study was conducted, and 45 elite and amateur male youth soccer players (16.56 ± 0.9 y...

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Autores principales:	Michael Keiner, Andreas Kapsecker, Tobias Stefer, Björn Kadlubowski, Klaus Wirth
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	talent identification speed football performance diagnosis Sports GV557-1198.995
Acceso en línea:	https://doaj.org/article/074ddd144bf8457c94cb9a72e0b4cbc1
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id	oai:doaj.org-article:074ddd144bf8457c94cb9a72e0b4cbc1
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spelling	oai:doaj.org-article:074ddd144bf8457c94cb9a72e0b4cbc12021-11-25T19:00:04ZDifferences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level10.3390/sports91101492075-4663https://doaj.org/article/074ddd144bf8457c94cb9a72e0b4cbc12021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4663/9/11/149https://doaj.org/toc/2075-4663The aim of this investigation was to analyze significant differences in performance depending on the level of play (elite vs. amateur) in youth soccer players (under 17 years. old (U17) and U19). A cross-sectional study was conducted, and 45 elite and amateur male youth soccer players (16.56 ± 0.9 years old) were evaluated in their performances in squat jump (SJ), 10 m linear sprint (LS), 20 m LS, 505 agility test (505) and Illinois agility test (IAT). Differences in performances were analyzed with a 2 × 2 MANOVA, post-hoc ANOVAs, and Hedges’ g (g) for pairwise comparisons of subgroups (level of play and age group). This investigation showed that the elite player performance was significantly (<i>p</i> < 0.05) better in all performance tests than amateur players in both age groups. Interestingly, this investigation showed that the more complex the target exercise, the larger the effect sizes for group differences (SJ: g = 0.64–1.18, LS: g = 0.05–2.23, change-of-direction (COD): g = 3.01–6.84). The SJ, LS, 505, and IAT may prove useful in talent selection test batteries to separate between competitive levels in youth soccer players.Michael KeinerAndreas KapseckerTobias SteferBjörn KadlubowskiKlaus WirthMDPI AGarticletalent identificationspeedfootballperformance diagnosisSportsGV557-1198.995ENSports, Vol 9, Iss 149, p 149 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	talent identification speed football performance diagnosis Sports GV557-1198.995
spellingShingle	talent identification speed football performance diagnosis Sports GV557-1198.995 Michael Keiner Andreas Kapsecker Tobias Stefer Björn Kadlubowski Klaus Wirth Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level
description	The aim of this investigation was to analyze significant differences in performance depending on the level of play (elite vs. amateur) in youth soccer players (under 17 years. old (U17) and U19). A cross-sectional study was conducted, and 45 elite and amateur male youth soccer players (16.56 ± 0.9 years old) were evaluated in their performances in squat jump (SJ), 10 m linear sprint (LS), 20 m LS, 505 agility test (505) and Illinois agility test (IAT). Differences in performances were analyzed with a 2 × 2 MANOVA, post-hoc ANOVAs, and Hedges’ g (g) for pairwise comparisons of subgroups (level of play and age group). This investigation showed that the elite player performance was significantly (<i>p</i> < 0.05) better in all performance tests than amateur players in both age groups. Interestingly, this investigation showed that the more complex the target exercise, the larger the effect sizes for group differences (SJ: g = 0.64–1.18, LS: g = 0.05–2.23, change-of-direction (COD): g = 3.01–6.84). The SJ, LS, 505, and IAT may prove useful in talent selection test batteries to separate between competitive levels in youth soccer players.
format	article
author	Michael Keiner Andreas Kapsecker Tobias Stefer Björn Kadlubowski Klaus Wirth
author_facet	Michael Keiner Andreas Kapsecker Tobias Stefer Björn Kadlubowski Klaus Wirth
author_sort	Michael Keiner
title	Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level
title_short	Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level
title_full	Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level
title_fullStr	Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level
title_full_unstemmed	Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level
title_sort	differences in squat jump, linear sprint, and change-of-direction performance among youth soccer players according to competitive level
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/074ddd144bf8457c94cb9a72e0b4cbc1
work_keys_str_mv	AT michaelkeiner differencesinsquatjumplinearsprintandchangeofdirectionperformanceamongyouthsoccerplayersaccordingtocompetitivelevel AT andreaskapsecker differencesinsquatjumplinearsprintandchangeofdirectionperformanceamongyouthsoccerplayersaccordingtocompetitivelevel AT tobiasstefer differencesinsquatjumplinearsprintandchangeofdirectionperformanceamongyouthsoccerplayersaccordingtocompetitivelevel AT bjornkadlubowski differencesinsquatjumplinearsprintandchangeofdirectionperformanceamongyouthsoccerplayersaccordingtocompetitivelevel AT klauswirth differencesinsquatjumplinearsprintandchangeofdirectionperformanceamongyouthsoccerplayersaccordingtocompetitivelevel
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Differences in Squat Jump, Linear Sprint, and Change-of-Direction Performance among Youth Soccer Players According to Competitive Level

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