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Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation

The relationship between birth quarter distribution and physiological characteristics related to athletic skills, in adolescent sport academy students has not been fully investigated. In a cross-sectional study, we recruited 86 boys and 52 girls aged 12–14 years during their first term at a sport ac...

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Autores principales: Ek, Staffan, Wollmer, Per, Karlsson, Magnus K., Peterson, Tomas, Thorsson, Ola, Olsson, M. Charlotte, S. Malmborg, Julia, Dencker, Magnus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7022851/
https://www.ncbi.nlm.nih.gov/pubmed/31936102
http://dx.doi.org/10.3390/sports8010005
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author Ek, Staffan
Wollmer, Per
Karlsson, Magnus K.
Peterson, Tomas
Thorsson, Ola
Olsson, M. Charlotte
S. Malmborg, Julia
Dencker, Magnus
author_facet Ek, Staffan
Wollmer, Per
Karlsson, Magnus K.
Peterson, Tomas
Thorsson, Ola
Olsson, M. Charlotte
S. Malmborg, Julia
Dencker, Magnus
author_sort Ek, Staffan
collection PubMed
description The relationship between birth quarter distribution and physiological characteristics related to athletic skills, in adolescent sport academy students has not been fully investigated. In a cross-sectional study, we recruited 86 boys and 52 girls aged 12–14 years during their first term at a sport academy school. We measured body size, cardiac size, pulmonary function, body composition, lower body power, cardiorespiratory fitness parameters, and running endurance by standard methods and analyzed these estimates in relation to birth quarter by ANOVA. Birth quarter distribution in our cohort was compared with birth quarter distribution in the same ages in the whole of Sweden and analyzed by logistic regression. The academy had an overrepresentation of students born in the first quartile of the year compared to those born in the last quartile (odds ratio 2.3 (95% CI: 1.1–4.7)). When comparing the physiological characteristics between birth quarters, uniformity is prominent since out of 26 performed physiological and anthropometric tests only four showed statistically significant group differences. We thus believe that the selection process to the sport academy favours athletes with higher chronological age, i.e., a so-called relative age effect is present.
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spelling pubmed-70228512020-03-12 Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation Ek, Staffan Wollmer, Per Karlsson, Magnus K. Peterson, Tomas Thorsson, Ola Olsson, M. Charlotte S. Malmborg, Julia Dencker, Magnus Sports (Basel) Article The relationship between birth quarter distribution and physiological characteristics related to athletic skills, in adolescent sport academy students has not been fully investigated. In a cross-sectional study, we recruited 86 boys and 52 girls aged 12–14 years during their first term at a sport academy school. We measured body size, cardiac size, pulmonary function, body composition, lower body power, cardiorespiratory fitness parameters, and running endurance by standard methods and analyzed these estimates in relation to birth quarter by ANOVA. Birth quarter distribution in our cohort was compared with birth quarter distribution in the same ages in the whole of Sweden and analyzed by logistic regression. The academy had an overrepresentation of students born in the first quartile of the year compared to those born in the last quartile (odds ratio 2.3 (95% CI: 1.1–4.7)). When comparing the physiological characteristics between birth quarters, uniformity is prominent since out of 26 performed physiological and anthropometric tests only four showed statistically significant group differences. We thus believe that the selection process to the sport academy favours athletes with higher chronological age, i.e., a so-called relative age effect is present. MDPI 2020-01-07 /pmc/articles/PMC7022851/ /pubmed/31936102 http://dx.doi.org/10.3390/sports8010005 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ek, Staffan
Wollmer, Per
Karlsson, Magnus K.
Peterson, Tomas
Thorsson, Ola
Olsson, M. Charlotte
S. Malmborg, Julia
Dencker, Magnus
Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation
title Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation
title_full Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation
title_fullStr Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation
title_full_unstemmed Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation
title_short Relative Age Effect of Sport Academy Adolescents, a Physiological Evaluation
title_sort relative age effect of sport academy adolescents, a physiological evaluation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7022851/
https://www.ncbi.nlm.nih.gov/pubmed/31936102
http://dx.doi.org/10.3390/sports8010005
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