其他摘要：The Relative Age Effect (RAE) is "the difference in age and maturity, among people who have been grouped under thesame age, for a specific purpose or function" (Lorenzo and Calleja, 2010). The aim of this study is to analyse the presence of the effectin the Spanish National Basketball Teams from U-16 category to the senior teams (n = 110), who competed over summer 2013. Thestudy will address the possible relationship to gender and playing position. This analysis will show the variations in the percentage ofbirths throughout the year calendar. A descriptive study set whose variables include month of birth, gender (male or female), category(U16, U18, U19, U20, Senior) and playing position (inside or outside player). Significant differences in the distribution of births groupedby periods (p = .46 χ2 (4) = 9.6) were found. In men’s youth teams there is a significant difference in the number of players who areselected from the first and second semester depending on whether they are inside or outside players (χ2 (1) = 5.42; p = .20, V = .34).Likewise, in women’s youth teams there is also a significant difference (χ2 (1) = 9.24; p = .002, V = .49). In conclusion, the effect ispresent through the Spanish basketball teams, especially at non-senior levels. It begins at the first competitive age and disappears intothe senior teams. Furthermore, youth categories are specifically affected according to the position of play. It seems necessary to revisethe models of organizing competitions trying to achieve other more balanced and less exclusive. Also rethinking selection and detectionof talent methods of male and female players in the Spanish basketball.
其他关键词：Basketball; Chronological age; Relative Age Effect.
