Relative age effect in elite sports: Methodological bias or real discrimination?

Delorme, Nicolas; Boiché, Julie; Raspaud, Michel

doi:10.1080/17461390903271584

Cited by 112 publications

(118 citation statements)

References 19 publications

(44 reference statements)

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“…Os resultados obtidos pelo presente estudo corroboram os dados encontrados na literatura, particularmente com aqueles relacionados ao Futebol (HELSEN et al, 2005;FOLGADO et al, 2006;JIMÉNEZ et al, 2008;COSTA et al, 2009DELORME et al, 2010), indicando que o efeito da idade relativa também está presente no futsal, podendo influenciar a seleção de atletas nas equipes de elite do futsal brasileiro.…”

Section: Discussionunclassified

Efeito relativo da idade em atletas brasileiros de futsal de alto nível

Penna

Moraes

2010

Motriz. Rev. Ed. Fis. UNESP

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IntroduçãoO futsal é um esporte muito praticado no Brasil, e em diversos países do mundo. Estima-se que mais de dez milhões de pessoas praticam esta modalidade ao redor do globo (DACOSTA, 2005). Dentro do contexto escolar, o futsal é ainda mais forte, sendo um dos esportes mais praticados por meninos e meninas (GENEROSI et al., 2008;QUEIROGA et al. 2005). Araújo et al. (1996) descreve que em um jogo de futsal, os esforços são provenientes predominantemente da velocidade agilidade e potência muscular, sendo assim, o jogo é caracterizado pela realização de esforços intensos e de curta duração. Logo, as características antropométricas, bem como a habilidade técnica e tática e o desempenho físico individual são fatores primordiais para o sucesso das equipes (QUEIROGA et al. 2005 Motriz, Rio Claro, v.16 n.3 p.658-663, jul./set. 2010 Artigo Original Efeito relativo da idade em atletas brasileiros de futsal de alto nível The relative age effect in brazilian elite futsal playersAbstract: The Relative Age Effect, which is the advantage gained by those born early in the selection year, is shown to be a factor which influences the development of a talent in several sports, which in its structure has the division of categories into age groups. The aim of the present study is to assess and identify the quartiles in professional players who played the Brazilian Futsal League in 2009. Data of 370 players were collected and analyzed using the chi-square test. Differences were found in the quartile distribution, with the predominance of first and second quartiles, and an under representation of third and fourth quartiles. It was therefore concluded that the relative age effect is a factor that could have an influence in player selection to futsal.

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Section: Discussionunclassified

Efeito relativo da idade em atletas brasileiros de futsal de alto nível

Penna

Moraes

2010

Motriz. Rev. Ed. Fis. UNESP

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“…Direct effects come about due to dissimilarities in maturation, including differences in size, fitness, muscle mass, strength and cognitive development, providing potential performance advantages to those children who are more mature (Beunen, Ostyn, Simons, Renson, & Van Gerven, 1981;Katzmarzyk, Malina, & Beunen, 1997). This can lead to an over-representation of relatively older children even at the grass roots level of sport participation (Delorme, Boiché, & Raspaud, 2010). But the indirect benefits of earlier maturation can be profound, largely due to the evaluations and reactions of others.…”

Section: Introductionmentioning

confidence: 97%

Age-ordered shirt numbering reduces the selection bias associated with the relative age effect

Ginneken

2016

Journal of Sports Sciences

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When placed into age groups for junior sporting competition, the relative differences in age between children leads to a bias in who is evaluated as being talented. While the impact of this relative age effect (RAE) is clear, until now there has been no evidence to show how to reduce it. The aim of this study was to determine whether the selection bias associated with the RAE could be reduced. Talent scouts from an elite football club watched junior games and ranked players on the basis of their potential. Scouts were allocated to one of three groups provided with contrasting information about the age of the players: (1) no age information, (2) players' birthdates or (3) knowledge that the numbers on the playing shirts corresponded to the relative age of the players. Results revealed a significant selection bias for the scouts in the no-age information group, and that bias remained when scouts knew the players' dates-of-birth. Strikingly though, the selection bias was eliminated when scouts watched the games knowing the shirt numbers corresponded to the relative ages of the players. The selection bias associated with the RAE can be reduced if information about age is presented appropriately.

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“…Este hecho contrasta con lo establecido por Armstrong (1966) sobre la disminución progresiva del efecto a medida que se suceden las etapas madurativas. En su revisión, Mush y Grondin (2001) no dudaron en calificar al RAE como "efecto discriminatorio" puesto que la identificación de la denominada "promesa" deportiva podría estar condicionada por este factor, perjudicando a los atletas cuyo nacimiento se produce en fechas más tardías del año (Delorme et al, 2010b).…”

Section: Introductionunclassified