Observed and predicted ages at peak height velocity in soccer players.

The purpose of the study was to evaluate predicted maturity offset (time before age at PHV) and age at PHV (chronological age [CA] minus maturity offset) in a longitudinal sample of 58 under-13 club level soccer players in central Portugal for whom ages at PHV were estimated with the SITAR model. Tw...

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Autores principales:	Robert M Malina, Manuel J Coelho-E-Silva, Diogo V Martinho, Paulo Sousa-E-Siva, Antonio J Figueiredo, Sean P Cumming, Miroslav Králík, Sławomir M Kozieł
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d43c189d6d9b441bbe32e6c07f9218fb
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spelling	oai:doaj.org-article:d43c189d6d9b441bbe32e6c07f9218fb2021-12-02T20:04:50ZObserved and predicted ages at peak height velocity in soccer players.1932-620310.1371/journal.pone.0254659https://doaj.org/article/d43c189d6d9b441bbe32e6c07f9218fb2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0254659https://doaj.org/toc/1932-6203The purpose of the study was to evaluate predicted maturity offset (time before age at PHV) and age at PHV (chronological age [CA] minus maturity offset) in a longitudinal sample of 58 under-13 club level soccer players in central Portugal for whom ages at PHV were estimated with the SITAR model. Two maturity offset prediction equations were applied: the original equation which requires CA sitting height, estimated leg length, height and weight, and a modified equation which requires CA and height. Predicted maturity offset increased, on average, with CA at prediction throughout the age range considered, while variation in predicted maturity offset and ages at PHV within CA groups was considerably reduced compared to variation in observed ages at offset and at PHV. Predicted maturity offset and ages at PHV were consistently later than observed maturity offset and age at PHV among early maturing players, and earlier than observed in late maturing players. Both predicted offset and ages at PHV with the two equations were, on average, later than observed among players maturing on time. Intra-individual variation in predicted ages at PHV with each equation was considerable. The results for soccer players were consistent with similar studies in the general population and two recent longitudinal studies of soccer players. The results question the utility of predicted maturity offset and age at PHV as valid indicators of maturity timing and status.Robert M MalinaManuel J Coelho-E-SilvaDiogo V MartinhoPaulo Sousa-E-SivaAntonio J FigueiredoSean P CummingMiroslav KrálíkSławomir M KoziełPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0254659 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Robert M Malina Manuel J Coelho-E-Silva Diogo V Martinho Paulo Sousa-E-Siva Antonio J Figueiredo Sean P Cumming Miroslav Králík Sławomir M Kozieł Observed and predicted ages at peak height velocity in soccer players.
description	The purpose of the study was to evaluate predicted maturity offset (time before age at PHV) and age at PHV (chronological age [CA] minus maturity offset) in a longitudinal sample of 58 under-13 club level soccer players in central Portugal for whom ages at PHV were estimated with the SITAR model. Two maturity offset prediction equations were applied: the original equation which requires CA sitting height, estimated leg length, height and weight, and a modified equation which requires CA and height. Predicted maturity offset increased, on average, with CA at prediction throughout the age range considered, while variation in predicted maturity offset and ages at PHV within CA groups was considerably reduced compared to variation in observed ages at offset and at PHV. Predicted maturity offset and ages at PHV were consistently later than observed maturity offset and age at PHV among early maturing players, and earlier than observed in late maturing players. Both predicted offset and ages at PHV with the two equations were, on average, later than observed among players maturing on time. Intra-individual variation in predicted ages at PHV with each equation was considerable. The results for soccer players were consistent with similar studies in the general population and two recent longitudinal studies of soccer players. The results question the utility of predicted maturity offset and age at PHV as valid indicators of maturity timing and status.
format	article
author	Robert M Malina Manuel J Coelho-E-Silva Diogo V Martinho Paulo Sousa-E-Siva Antonio J Figueiredo Sean P Cumming Miroslav Králík Sławomir M Kozieł
author_facet	Robert M Malina Manuel J Coelho-E-Silva Diogo V Martinho Paulo Sousa-E-Siva Antonio J Figueiredo Sean P Cumming Miroslav Králík Sławomir M Kozieł
author_sort	Robert M Malina
title	Observed and predicted ages at peak height velocity in soccer players.
title_short	Observed and predicted ages at peak height velocity in soccer players.
title_full	Observed and predicted ages at peak height velocity in soccer players.
title_fullStr	Observed and predicted ages at peak height velocity in soccer players.
title_full_unstemmed	Observed and predicted ages at peak height velocity in soccer players.
title_sort	observed and predicted ages at peak height velocity in soccer players.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/d43c189d6d9b441bbe32e6c07f9218fb
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Observed and predicted ages at peak height velocity in soccer players.

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