The Relative Age Effect in under-18 basketball: Effects on performance according to playing position

The Relative Age Effect (RAE) in sport is defined as the age difference in the same sport group. This chronological difference implies a different level of sport experience and performance due to developmental and maturational processes. The aim of the present study was to analyze the relative age e...

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Published in:	PloS one Vol. 13; no. 7; p. e0200408
Main Authors:	Ibáñez, Sergio J., Mazo, Aitor, Nascimento, Juarez, García-Rubio, Javier
Format:	Journal Article
Language:	English
Published:	United States Public Library of Science 09.07.2018 Public Library of Science (PLoS)
Subjects:	Age Age differences Age differences (Psychology) Age effects Analysis Anthropometry Athletic ability Basketball Basketball players Biology and Life Sciences Birth Body measurements Business metrics Childbirth & labor Clubs Discriminant analysis Indicators Medicine Medicine and Health Sciences Performance indicators Physical Sciences Physiology Position indicators Professional hockey Recruitment Regression analysis Research and Analysis Methods Soccer Social Sciences Sociology Sports Sports medicine Studies Success Tournaments & championships Variance analysis Chile Spain
ISSN:	1932-6203, 1932-6203
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Abstract	The Relative Age Effect (RAE) in sport is defined as the age difference in the same sport group. This chronological difference implies a different level of sport experience and performance due to developmental and maturational processes. The aim of the present study was to analyze the relative age effect in elite u-18 basketball according to playing positions. The variables analyzed were: date of birth, playing position and technical-tactical performance indicators in basketball (TTPI). A descriptive analysis was carried out to characterize the sample, a lineal regression was used to analyze the influence of the date of birth on basketball performance and finally an ANOVA and discriminant analysis were performed to identify the differences among different playing positions. The results show the existence of the RAE in the top European Under-18 basketball competition (S1 = 67%; S2 = 33%). Performance indicators which are predictors of the birth quarter (p< .05) were only found in the small forwards (defensive rebounds (β: -.463) and fouls received (β: -.140)) and in the centers (three point throws scored (β: -.321) and tried (β: .342)). These results may be of use for coaches and clubs when recruiting players for each playing position. Older forwards and centers are capable of performing at a higher level. Therefore, clubs have to sign up those players born at the beginning of the year.
AbstractList	The Relative Age Effect (RAE) in sport is defined as the age difference in the same sport group. This chronological difference implies a different level of sport experience and performance due to developmental and maturational processes. The aim of the present study was to analyze the relative age effect in elite u-18 basketball according to playing positions. The variables analyzed were: date of birth, playing position and technical-tactical performance indicators in basketball (TTPI). A descriptive analysis was carried out to characterize the sample, a lineal regression was used to analyze the influence of the date of birth on basketball performance and finally an ANOVA and discriminant analysis were performed to identify the differences among different playing positions. The results show the existence of the RAE in the top European Under-18 basketball competition (S1 = 67%; S2 = 33%). Performance indicators which are predictors of the birth quarter (p< .05) were only found in the small forwards (defensive rebounds (β: -.463) and fouls received (β: -.140)) and in the centers (three point throws scored (β: -.321) and tried (β: .342)). These results may be of use for coaches and clubs when recruiting players for each playing position. Older forwards and centers are capable of performing at a higher level. Therefore, clubs have to sign up those players born at the beginning of the year. The Relative Age Effect (RAE) in sport is defined as the age difference in the same sport group. This chronological difference implies a different level of sport experience and performance due to developmental and maturational processes. The aim of the present study was to analyze the relative age effect in elite u-18 basketball according to playing positions. The variables analyzed were: date of birth, playing position and technical-tactical performance indicators in basketball (TTPI). A descriptive analysis was carried out to characterize the sample, a lineal regression was used to analyze the influence of the date of birth on basketball performance and finally an ANOVA and discriminant analysis were performed to identify the differences among different playing positions. The results show the existence of the RAE in the top European Under-18 basketball competition (S1 = 67%; S2 = 33%). Performance indicators which are predictors of the birth quarter (p< .05) were only found in the small forwards (defensive rebounds ([beta]: -.463) and fouls received ([beta]: -.140)) and in the centers (three point throws scored ([beta]: -.321) and tried ([beta]: .342)). These results may be of use for coaches and clubs when recruiting players for each playing position. Older forwards and centers are capable of performing at a higher level. Therefore, clubs have to sign up those players born at the beginning of the year. The Relative Age Effect (RAE) in sport is defined as the age difference in the same sport group. This chronological difference implies a different level of sport experience and performance due to developmental and maturational processes. The aim of the present study was to analyze the relative age effect in elite u-18 basketball according to playing positions. The variables analyzed were: date of birth, playing position and technical-tactical performance indicators in basketball (TTPI). A descriptive analysis was carried out to characterize the sample, a lineal regression was used to analyze the influence of the date of birth on basketball performance and finally an ANOVA and discriminant analysis were performed to identify the differences among different playing positions. The results show the existence of the RAE in the top European Under-18 basketball competition (S1 = 67%; S2 = 33%). Performance indicators which are predictors of the birth quarter (p< .05) were only found in the small forwards (defensive rebounds (β: -.463) and fouls received (β: -.140)) and in the centers (three point throws scored (β: -.321) and tried (β: .342)). These results may be of use for coaches and clubs when recruiting players for each playing position. Older forwards and centers are capable of performing at a higher level. Therefore, clubs have to sign up those players born at the beginning of the year.The Relative Age Effect (RAE) in sport is defined as the age difference in the same sport group. This chronological difference implies a different level of sport experience and performance due to developmental and maturational processes. The aim of the present study was to analyze the relative age effect in elite u-18 basketball according to playing positions. The variables analyzed were: date of birth, playing position and technical-tactical performance indicators in basketball (TTPI). A descriptive analysis was carried out to characterize the sample, a lineal regression was used to analyze the influence of the date of birth on basketball performance and finally an ANOVA and discriminant analysis were performed to identify the differences among different playing positions. The results show the existence of the RAE in the top European Under-18 basketball competition (S1 = 67%; S2 = 33%). Performance indicators which are predictors of the birth quarter (p< .05) were only found in the small forwards (defensive rebounds (β: -.463) and fouls received (β: -.140)) and in the centers (three point throws scored (β: -.321) and tried (β: .342)). These results may be of use for coaches and clubs when recruiting players for each playing position. Older forwards and centers are capable of performing at a higher level. Therefore, clubs have to sign up those players born at the beginning of the year.
Audience	Academic
Author	Nascimento, Juarez García-Rubio, Javier Ibáñez, Sergio J. Mazo, Aitor
AuthorAffiliation	2 Universidade Federal de Santa Catarina, Florianópolis, Brasil 3 Facultad de Educación, Universidad Autónoma de Chile, Santiago de Chile, Chile Leeds Beckett University, UNITED KINGDOM 1 Faculty of Sports Sciences, University of Extremadura, Cáceres, Spain
AuthorAffiliation_xml	– name: Leeds Beckett University, UNITED KINGDOM – name: 2 Universidade Federal de Santa Catarina, Florianópolis, Brasil – name: 3 Facultad de Educación, Universidad Autónoma de Chile, Santiago de Chile, Chile – name: 1 Faculty of Sports Sciences, University of Extremadura, Cáceres, Spain
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Copyright	COPYRIGHT 2018 Public Library of Science 2018 Ibáñez et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 2018 Ibáñez et al 2018 Ibáñez et al
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Snippet	The Relative Age Effect (RAE) in sport is defined as the age difference in the same sport group. This chronological difference implies a different level of...
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SubjectTerms	Age Age differences Age differences (Psychology) Age effects Analysis Anthropometry Athletic ability Basketball Basketball players Biology and Life Sciences Birth Body measurements Business metrics Childbirth & labor Clubs Discriminant analysis Indicators Medicine Medicine and Health Sciences Performance indicators Physical Sciences Physiology Position indicators Professional hockey Recruitment Regression analysis Research and Analysis Methods Soccer Social Sciences Sociology Sports Sports medicine Studies Success Tournaments & championships Variance analysis
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Title	The Relative Age Effect in under-18 basketball: Effects on performance according to playing position
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