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The relative effect of age in international football: Europe vs South America
The concept of relative age effect refers to the consequences of the physical and psychological differences that may exist between those born earlier or later within the same calendar year. The objective of the present study was to examine this phenomenon in international professional football, iden...
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Published in: | European Journal of Human Movement 2020-01, Vol.44 (44), p.34-49 |
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Main Author: | |
Format: | Article |
Language: | English |
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Online Access: | Get full text |
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Summary: | The concept of relative age effect refers to the consequences of the physical and psychological differences that may exist between those born earlier or later within the same calendar year. The objective of the present study was to examine this phenomenon in international professional football, identifying the influences of the continent. The sample comprised 6414 subjects from 225 teams (115 UEFA and 110 CONMEBOL) from the professional football Leagues (PFL). Statistical analysis was based on the Chi-squared (X2) test followed by the odds ratios (OR) and 95% confidence intervals estimation. The main results show higher RAE in the CONMEBOL leagues (OR = 2.23) than in the UEFA leagues (OR = 1.95). In addition, in all leagues analysed, except in the Premier League of England there was an over-representation of individuals born in the first few months of the year. We can conclude that the relative age effect is consistent and exists in international football.
El concepto de efecto de edad relativa se refiere a las consecuencias de las diferencias físicas y
psicológicas que pueden existir entre los nacidos antes o después dentro del mismo año calendario.
El objetivo del presente estudio fue examinar este fenómeno en el fútbol profesional internacional,
identificando las influencias del continente. La muestra comprendió 6448 sujetos de 225 equipos
(115 UEFA y 110 CONMEBOL) de las Ligas de fútbol profesional (PFL). El análisis estadístico se
basó en la prueba de Chi-cuadrado (X2) seguido de los oddsratios (OR) y la estimación de intervalos
de confianza del 95%. Los principales resultados muestran un RAE más alto en las ligas CONMEBOL
(OR = 2, 23) que en las ligas de la UEFA (OR = 1,95). Además, en todas las ligas analizadas, excepto
en la Premier League de Inglaterra, hubo una sobrerrepresentación de las personas nacidas en los
primeros meses del año. Podemos concluir que el efecto de la edad relativa es consistente y existe
en el fútbol internacional. |
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ISSN: | 2172-2862 2386-4095 0214-0071 2386-4095 |
DOI: | 10.21134/eurjhm.2020.44.539 |