Efecto relativo de la edad en futbolestudio en un club Vasco profesional

  1. Bidaurrazaga López de Letona, Iraia
  2. Badiola Lecue, Aduna
  3. Granados, Carolina
  4. Lekue Gallano, José Antonio
  5. Amado, M.
  6. Gil Orozko, Susana María
Journal:
Retos: nuevas tendencias en educación física, deporte y recreación

ISSN: 1579-1726,  1988-2041

Year of publication: 2014

Issue: 25

Pages: 95-99

Type: Article

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More publications in: Retos: nuevas tendencias en educación física, deporte y recreación

Abstract

The presence of RAE has been widely reported and studied in soccer revealing skewed birth-date distributions favoring individuals born early in the selection year. Indeed, it has been documented that RAE is more relevant in high level teams. With this in mind, the present study examined the prevalence of the Relative Age Effect (RAE) in different age groups of a professional soccer club and in the selection processes of the same club. Considering the entire club, distribution differs significantly from the theoretical distribution expected (p<.05). Regarding different categories, there were significant differences between the observed and expected births in both alevin categories (male, x2 = 8.14, p<.05; female, x2 = 11.5, p<.01). Moreover, in womens alevin age group none of the players was born between September and December of the selection year. Nevertheless, they were not significant differences between the expected and observed results in higher categories but a comparatively biased distribution was observed. Overall, we found an over-representation of players born at the beginning of the year confirming the presence of the RAE in the club. When analyzing the effect of RAE in the talent identification process we observed that it begins before the players enter the club. Comparing the distributions of the not-selected players against the selected players significant differences were found in each of the selection phases (x2 = 18.10-7.80, p<.05). Thus, results revealed that the relative age effect acts in the early identification process of the players

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