The relative age effect in soccer: a case study of the São Paulo Football Club
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2014v16n4p399 |
Resumo: | The aim of this study was to compare the birth-date distribution of youth athletes of a high-level Brazilian soccer club with the general population of the same age group. In a cross-sectional study, the birth date of 341 youth athletes (under 10-20) was compared with a reference population (live births that occurred in São Paulo state in the same age group; n = 5,480,868). The subjects were divided into quarters of birth: 1st = January-March; 2nd = April-June; 3rd = July-September; 4th = October-December. The chisquare test (χ2) was used to compare the expected (reference population) and observed (athletes) distributions. It was detected a significant difference between the expected distribution and observed distribution (χ2= 29.53; p<0.0001), with a higher percentage of athletes born in the 1st quarter (47.5%) and a lower percentage in the 4th quarter (8.8%). The present results confirm the occurrence of the relative age effect (RAE) during the player selection process in a top-level Brazilian soccer club. The occurrence of this phenomenon during the selection and development of young athletes needs to be taken into account and should be analyzed carefully in order to minimize the loss of potential youth soccer talent. Further studies are required to identify the determinants of RAE and to establish preventive strategies that ensure a more efficient selection process of young soccer players. |
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Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
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The relative age effect in soccer: a case study of the São Paulo Football ClubEfeito da idade relativa no Futebol: o estudo de caso do São Paulo Futebol ClubeThe aim of this study was to compare the birth-date distribution of youth athletes of a high-level Brazilian soccer club with the general population of the same age group. In a cross-sectional study, the birth date of 341 youth athletes (under 10-20) was compared with a reference population (live births that occurred in São Paulo state in the same age group; n = 5,480,868). The subjects were divided into quarters of birth: 1st = January-March; 2nd = April-June; 3rd = July-September; 4th = October-December. The chisquare test (χ2) was used to compare the expected (reference population) and observed (athletes) distributions. It was detected a significant difference between the expected distribution and observed distribution (χ2= 29.53; p<0.0001), with a higher percentage of athletes born in the 1st quarter (47.5%) and a lower percentage in the 4th quarter (8.8%). The present results confirm the occurrence of the relative age effect (RAE) during the player selection process in a top-level Brazilian soccer club. The occurrence of this phenomenon during the selection and development of young athletes needs to be taken into account and should be analyzed carefully in order to minimize the loss of potential youth soccer talent. Further studies are required to identify the determinants of RAE and to establish preventive strategies that ensure a more efficient selection process of young soccer players.O objetivo do presente estudo foi comparar a distribuição das datas de nascimento dos atletas das categorias de base de um clube da elite do futebol brasileiro com a população do estado de São Paulo da mesma faixa etária. Por meio de estudo transversal, as datas de nascimento de 341 atletas das categorias de base de um clube de São Paulo (sub 10-20) foram comparadas com uma população de referência (nascidos vivos do Estado de São Paulo da mesma faixa etária; n = 5.480.868). Os indivíduos foram distribuídos por trimestre de nascimento: 1° = Janeiro a Março; 2° = Abril a Junho; 3° = Julho a Setembro; 4° = Outubro a Dezembro. Para análise comparativa entre a distribuição esperada (população de referência) e a distribuição observada (atletas), foi utilizado o teste qui-quadrado (χ2). Foi detectada diferença significante entre a distribuição esperada e a distribuição observada (χ2= 29,53; p<0,0001), com maior concentração de atletas nascidos no 1° trimestre (47,5%) e menor no 4° trimestre (8,8%). Os resultados do presente estudo confirmam a existência do “efeito da idade relativa” (EIR) no processo de seleção de atletas em um clube de elite do futebol brasileiro. A ocorrência deste fenômeno durante o processo de seleção e formação de jovens atletas precisa ser considerada e analisada cuidadosamente, a fim de minimizar a exclusão de jovens atletas de futebol potencialmente talentosos. Estudos adicionais são necessários para identificar os fatores determinantes do EIR e promover estratégias preventivas que tornem o processo de seleção e formação de jovens futebolistas mais eficiente.Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil2014-05-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Avaliado por Pares",Cross-sectional studyAvaliado por ParesSurveyapplication/pdfhttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2014v16n4p39910.1590/1980-0037.2014v16n4p399Brazilian Journal of Kinanthropometry and Human Performance; Vol. 16 No. 4 (2014); 399-405Revista Brasileira de Cineantropometria e Desempenho Humano; v. 16 n. 4 (2014); 399-4051980-00371415-8426reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2014v16n4p399/26769Massa, MarceloCosta, Eduardo CaldasMoreira, AlexandreThiengo, Carlos RogérioLima, MarceloQuispe, WalterAoki, Marcelo Saldanhainfo:eu-repo/semantics/openAccess2018-12-05T08:17:30Zoai:periodicos.ufsc.br:article/30481Revistahttps://periodicos.ufsc.br/index.php/rbcdh/PUBhttps://periodicos.ufsc.br/index.php/rbcdh/oairbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br1980-00371415-8426opendoar:2018-12-05T08:17:30Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
The relative age effect in soccer: a case study of the São Paulo Football Club Efeito da idade relativa no Futebol: o estudo de caso do São Paulo Futebol Clube |
title |
The relative age effect in soccer: a case study of the São Paulo Football Club |
spellingShingle |
The relative age effect in soccer: a case study of the São Paulo Football Club Massa, Marcelo |
title_short |
The relative age effect in soccer: a case study of the São Paulo Football Club |
title_full |
The relative age effect in soccer: a case study of the São Paulo Football Club |
title_fullStr |
The relative age effect in soccer: a case study of the São Paulo Football Club |
title_full_unstemmed |
The relative age effect in soccer: a case study of the São Paulo Football Club |
title_sort |
The relative age effect in soccer: a case study of the São Paulo Football Club |
author |
Massa, Marcelo |
author_facet |
Massa, Marcelo Costa, Eduardo Caldas Moreira, Alexandre Thiengo, Carlos Rogério Lima, Marcelo Quispe, Walter Aoki, Marcelo Saldanha |
author_role |
author |
author2 |
Costa, Eduardo Caldas Moreira, Alexandre Thiengo, Carlos Rogério Lima, Marcelo Quispe, Walter Aoki, Marcelo Saldanha |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Massa, Marcelo Costa, Eduardo Caldas Moreira, Alexandre Thiengo, Carlos Rogério Lima, Marcelo Quispe, Walter Aoki, Marcelo Saldanha |
description |
The aim of this study was to compare the birth-date distribution of youth athletes of a high-level Brazilian soccer club with the general population of the same age group. In a cross-sectional study, the birth date of 341 youth athletes (under 10-20) was compared with a reference population (live births that occurred in São Paulo state in the same age group; n = 5,480,868). The subjects were divided into quarters of birth: 1st = January-March; 2nd = April-June; 3rd = July-September; 4th = October-December. The chisquare test (χ2) was used to compare the expected (reference population) and observed (athletes) distributions. It was detected a significant difference between the expected distribution and observed distribution (χ2= 29.53; p<0.0001), with a higher percentage of athletes born in the 1st quarter (47.5%) and a lower percentage in the 4th quarter (8.8%). The present results confirm the occurrence of the relative age effect (RAE) during the player selection process in a top-level Brazilian soccer club. The occurrence of this phenomenon during the selection and development of young athletes needs to be taken into account and should be analyzed carefully in order to minimize the loss of potential youth soccer talent. Further studies are required to identify the determinants of RAE and to establish preventive strategies that ensure a more efficient selection process of young soccer players. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05-27 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Avaliado por Pares", Cross-sectional study Avaliado por Pares Survey |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2014v16n4p399 10.1590/1980-0037.2014v16n4p399 |
url |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2014v16n4p399 |
identifier_str_mv |
10.1590/1980-0037.2014v16n4p399 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/rbcdh/article/view/1980-0037.2014v16n4p399/26769 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina. Florianópolis, SC. Brasil |
dc.source.none.fl_str_mv |
Brazilian Journal of Kinanthropometry and Human Performance; Vol. 16 No. 4 (2014); 399-405 Revista Brasileira de Cineantropometria e Desempenho Humano; v. 16 n. 4 (2014); 399-405 1980-0037 1415-8426 reponame:Revista Brasileira de Cineantropometria & Desempenho Humano (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
collection |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Cineantropometria & Desempenho Humano (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
rbcdh@contato.ufsc.br || portaldeperiodicos.bu@contato.ufsc.br |
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1789435123541737472 |