The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).

[EN] The aim of the present research was to observe the relative age effect on professional soccer players of the ten best leagues of the Union of European Football Associations (UEFA), according to the IFFHS (International Federation of Football History and Statistics). The sample consisted of 5201...

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Detalhes bibliográficos
Autores: Gonzalo de la Rubia, Alfonso, Sánchez Sánchez, Javier, Maroto Izquierdo, Sergio, Molinero González, Olga, Yagüe Cabezón, José María
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Recursos:Universidad Rey Juan Carlos
Repositorio:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/17580
Acesso em linha:https://jssm.org/volume17/iss3/cap/jssm-17-409.pdf
https://hdl.handle.net/10612/17580
Access Level:acceso abierto
Palavra-chave:Deporte
Educación Física
Professional soccer
Date of birth
Positions
Classification
Talent
RAE
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oai_identifier_str oai:buleria.unileon.es:10612/17580
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
El efecto de la edad relativa en las 10 mejores ligas europeas de fútbol profesional masculino de la UEFA
title The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
spellingShingle The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
Gonzalo de la Rubia, Alfonso
Deporte
Educación Física
Professional soccer
Date of birth
Positions
Classification
Talent
RAE
title_short The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
title_full The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
title_fullStr The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
title_full_unstemmed The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
title_sort The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).
dc.creator.none.fl_str_mv Gonzalo de la Rubia, Alfonso
Sánchez Sánchez, Javier
Maroto Izquierdo, Sergio
Molinero González, Olga
Yagüe Cabezón, José María
author Gonzalo de la Rubia, Alfonso
author_facet Gonzalo de la Rubia, Alfonso
Sánchez Sánchez, Javier
Maroto Izquierdo, Sergio
Molinero González, Olga
Yagüe Cabezón, José María
author_role author
author2 Sánchez Sánchez, Javier
Maroto Izquierdo, Sergio
Molinero González, Olga
Yagüe Cabezón, José María
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Educacion Fisica y Deportiva
Facultad de Ciencias de la Actividad Fisica y del Deporte
dc.subject.none.fl_str_mv Deporte
Educación Física
Professional soccer
Date of birth
Positions
Classification
Talent
RAE
topic Deporte
Educación Física
Professional soccer
Date of birth
Positions
Classification
Talent
RAE
description [EN] The aim of the present research was to observe the relative age effect on professional soccer players of the ten best leagues of the Union of European Football Associations (UEFA), according to the IFFHS (International Federation of Football History and Statistics). The sample consisted of 5201 professional players who participated in the professional leagues during the 2016-2017 season. The birth date of each player was classified in four quartiles (Q1, Q2, Q3 and Q4). The frequencies (fr) and percentages (%) of the birth quartiles were analyzed. The chi square test (X2) and degrees of freedom (gl) were performed to check the differences in the intergroup distribution. Likewise, odd ratios were calculated for the different quartiles, where Q4 was the reference group according to the different leagues studied, playing positions (goalkeeper, defender, midfielder and forward) and classification (first four places, half-of the table and four last places). To calculate the size of the effect on the nominal variables, the Cramer V test was carried out. The results confirmed a greater representation of players born in Q1 and Q2, indicating statistically significant values (p < 0.05) for all the leagues studied, except in the Eerste Klasse A (Belgium). This significance was repeated for the demarcation variables in the field, with a greater effect in the case of the midfielders. Finally, the RAE also affected the three groups according to teams´ classification. The conclusions confirm the effect of the RAE in the sample studied, which would require a review of the talent selection processes in football in order to balance the chances of success of players born at the end of the year.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://jssm.org/volume17/iss3/cap/jssm-17-409.pdf
https://hdl.handle.net/10612/17580
url https://jssm.org/volume17/iss3/cap/jssm-17-409.pdf
https://hdl.handle.net/10612/17580
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Journal of Sports Science & Medicine
publisher.none.fl_str_mv Journal of Sports Science & Medicine
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417557386067968
spelling The relative age effect in the 10 best leagues of male professional football of the Union of European Football Associations (UEFA).El efecto de la edad relativa en las 10 mejores ligas europeas de fútbol profesional masculino de la UEFAGonzalo de la Rubia, AlfonsoSánchez Sánchez, JavierMaroto Izquierdo, SergioMolinero González, OlgaYagüe Cabezón, José MaríaDeporteEducación FísicaProfessional soccerDate of birthPositionsClassificationTalentRAE[EN] The aim of the present research was to observe the relative age effect on professional soccer players of the ten best leagues of the Union of European Football Associations (UEFA), according to the IFFHS (International Federation of Football History and Statistics). The sample consisted of 5201 professional players who participated in the professional leagues during the 2016-2017 season. The birth date of each player was classified in four quartiles (Q1, Q2, Q3 and Q4). The frequencies (fr) and percentages (%) of the birth quartiles were analyzed. The chi square test (X2) and degrees of freedom (gl) were performed to check the differences in the intergroup distribution. Likewise, odd ratios were calculated for the different quartiles, where Q4 was the reference group according to the different leagues studied, playing positions (goalkeeper, defender, midfielder and forward) and classification (first four places, half-of the table and four last places). To calculate the size of the effect on the nominal variables, the Cramer V test was carried out. The results confirmed a greater representation of players born in Q1 and Q2, indicating statistically significant values (p < 0.05) for all the leagues studied, except in the Eerste Klasse A (Belgium). This significance was repeated for the demarcation variables in the field, with a greater effect in the case of the midfielders. Finally, the RAE also affected the three groups according to teams´ classification. The conclusions confirm the effect of the RAE in the sample studied, which would require a review of the talent selection processes in football in order to balance the chances of success of players born at the end of the year.[ES] El objetivo de la presente investigación fue observar el efecto de la edad relativa en jugadores de fútbol profesionales de las diez mejores ligas de la Unión de Asociaciones Europeas de Fútbol (UEFA), según la IFFHS (Federación Internacional de Historia y Estadística del Fútbol). La muestra estuvo compuesta por 5201 jugadores profesionales que participaron en las ligas profesionales durante la temporada 2016-2017. La fecha de nacimiento de cada jugador se clasificó en cuatro cuartiles (Q1, Q2, Q3 y Q4). Se analizaron las frecuencias (fr) y los porcentajes (%) de los cuartiles de nacimiento. Se realizaron la prueba de chi cuadrado (X2) y grados de libertad (gl) para comprobar las diferencias en la distribución intergrupal. Asimismo, se calcularon odds ratios para los diferentes cuartiles, siendo la Q4 el grupo de referencia según las diferentes ligas estudiadas, posiciones de juego (portero, defensa, centrocampista y delantero) y clasificación (cuatro primeros puestos, mitad de la tabla y cuatro últimos puestos). Para calcular el tamaño del efecto sobre las variables nominales se realizó la prueba V de Cramer. Los resultados confirmaron una mayor representación de jugadores nacidos en la Q1 y la Q2, indicando valores estadísticamente significativos (p < 0,05) para todas las ligas estudiadas, excepto en la Eerste Klasse A (Bélgica). Esta significación se repitió para las variables de demarcación en el campo, con mayor efecto en el caso de los centrocampistas. Finalmente, la RAE también afectó a los tres grupos según la clasificación de los equipos. Las conclusiones confirman el efecto de la RAE en la muestra estudiada, lo que requeriría una revisión de los procesos de selección de talento en el fútbol para poder equilibrar las posibilidades de éxito de los jugadores nacidos a final de año.SIJournal of Sports Science & MedicineEducacion Fisica y DeportivaFacultad de Ciencias de la Actividad Fisica y del Deporte2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://jssm.org/volume17/iss3/cap/jssm-17-409.pdfhttps://hdl.handle.net/10612/17580reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad Rey Juan CarlosIngléshttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/175802026-06-24T12:43:27Z
score 15.300719

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