scholarly journals Efeito da idade relativa no Campeonato Brasileiro de Basquete: Categoria sub-15

2017 ◽  
Vol 19 (5) ◽  
pp. 526
Author(s):  
Helder Zimmermann de Oliveira ◽  
Dilson Borges Ribeiro Junior ◽  
Jeferson Macedo Vianna ◽  
Francisco Zacaron Werneck
Keyword(s):  
Age Effect ◽  
Geographic Region ◽  
Basketball Players ◽  
Male Athletes ◽  
Relative Age ◽  
Relative Age Effect ◽  
And Performance ◽  
Age Category

In sport, the relative age effect (RAE) refers to the advantages of participation and performance that athletes born in the first months of the selection year have in relation to those within the same age category. The aim of the present study was to investigate the RAE in athletes of the Brazilian Basketball Championship of the U-15 category in 2015, analyzing differences between sexes, geographic region, competitive level and performance of teams. The information of teams and the birth quarter (quartile) of 530 basketball players were obtained through the website of the Brazilian Basketball Confederation. The results showed greater representation of male athletes born in the first months of the year, the first and second divisions, of the Southeastern, Northern and Mid-Western regions and in female medalists. It was concluded that the RAE is present in Brazilian U-15 male basketball players, being higher in athletes of higher competitive level, particularly in the Southeastern, Northern and Mid-Western regions of Brazil. In addition, RAE proved to be associated with the winning of women’s medals. 

scholarly journals Relative Age Effect in the Girls’ Volleyball U18 World Championship

2020 ◽  
Vol 72 (1) ◽  
pp. 195-202
Author(s):  
Fábio A. D. Campos ◽  
Ídico L. Pellegrinotti ◽  
Leandra C. B. Campos ◽  
Tiago M. R. Dias ◽  
Miguel-Ángel Gómez
Keyword(s):  
Data Collection ◽  
Age Effect ◽  
Equal Distribution ◽  
World Championship ◽  
Relative Age ◽  
Relative Age Effect ◽  
The World ◽  
Volleyball Players ◽  
And Performance ◽  
Age Category

AbstractThe relative age effect (RAE), within the sporting scope, refers to the possible advantages of participation and performance of athletes born in the first months of the year of selection in relation to others within the same age category. The aim of the present study was to investigate the RAE in girls’ volleyball players participating in the U-18 World Championship, analysing the differences between the medal teams and other teams in the tournament, and considering this phenomenon in relation to the continents. Data collection was obtained from the website of the International Volleyball Federation with a sample made of 1654 youth players in the last six world championships (2007, 2009, 2011, 2013, 2015 and 2017). A greater representation of athletes born in the first months of the year of all the world championships was observed. In the comparison among the continents, it was observed that in Africa, there was a more equal distribution of quartiles compared to America, Asia and Europe. It should be noted that there was a higher percentage of medalist athletes born at the beginning of the year in comparison to the countries that placed in the last three positions of the championship. Therefore, in U-18 female volleyball, there is an advantage to have the closest birth age at the beginning of the competitive biennium.

scholarly journals Relative Age Effect on basketball: implications for the selection of successful players (Efecto de la edad relativa en el baloncesto: implicaciones para la selección de jugadores exitosos)

Retos ◽  
2021 ◽  
Vol 42 ◽  
pp. 266-275
Author(s):  
Larissa Fernanda Porto Maciel ◽  
Mônica Cristina Flach ◽  
Raquel Krapp do Nascimento ◽  
Eduardo José Dallegrave ◽  
Juarez Vieira do Nascimento ◽  
...  
Keyword(s):  
Binary Logistic Regression ◽  
Age Effect ◽  
Northern Region ◽  
Binary Logistic Regression Model ◽  
Basketball Players ◽  
Relative Age ◽  
Relative Age Effect ◽  
Age Related ◽  
Athletic Teams ◽  
Region Data

The Relative Age Effect has been the subject of study by researchers who seek to understand sports performance. This study aimed to analyze the prevalence of relative age effect (RAE) in basketball players, verifying whether early-birth players and the features of the place they inserted affect probable recruitment for athletic teams. The sample was comprised 1,455 players within 9 and 19-year-old. Variables included birth semester, gender, sports category, number of recruitments, geographical region. Data were analyzed using descriptive statistics and binary logistic regression model. The results found that early-birth players had a better chance to be recruited for state athletic teams u13 than late-birth ones. Players u15 and u17 had similar chances. Further, u13 and u15 players linked to the northern region for Brazil and in cities with very high Human Development Index (HDI) and medium-sized cities had a better recruitment chance for state team. Results may be employed by coaches, recruiters and headhunters, since variables associated to RAE may affect the state team and players´ performance throughout the process of sports formation. Removing the influence of relative age-related differences is predicted to improve the accuracy of identifying skilled players.  Resumen. El efecto de la edad relativa (RAE) ha sido objeto de estudio por parte de investigadores que buscan comprender el desempeño en el deporte. El presente estudio tuvo como objetivo analizar el predominio del efecto de la edad relativa (RAE) en jugadores de baloncesto, verificando si los jugadores de nacimiento temprano y las características del lugar donde estaban insertos inciden en el probable reclutamiento para equipos deportivos. La muestra estuvo compuesta por 1.455 jugadores de entre 9 y 19 años. Las variables incluyeron semestre de nacimiento, género, categoría deportiva, número de reclutamientos, región geográfica. Los datos fueron analizados mediante estadística descriptiva y modelo de regresión logística binaria. Los resultados encontrados demostraron que los jugadores de nacimiento temprano tenían mayores posibilidades de ser reclutados para equipos atléticos estatales sub13 que los de nacimiento tardío. Los jugadores sub15 y sub17 tuvieron oportunidades similares. Además, los jugadores sub13 y sub15 vinculados a la región norte de Brasil y en ciudades com alto Índice de Desarrollo Humano (IDH) y ciudades medianas, tuvieron mayores oportunidades de ser reclutados para el equipo estatal. Los resultados pueden ser empleados por entrenadores, reclutadores y cazatalentos, ya que las variables asociadas al RAE pueden afectar el desempeño del equipo estatal y de los jugadores a lo largo del proceso de formación deportiva. Se prevé que al eliminar la influencia de las diferencias relativas relacionadas con la edad mejorará la precisión en la identificación de jugadores habilidosos.

Relative age effect and performance in elite male and female water polo players

2019 ◽  
Vol 34 (3) ◽  
pp. 175-177
Author(s):  
J. Barrenetxea-Garcia ◽  
J. Torres-Unda ◽  
I. Esain ◽  
A. Rodriguez-Larrad ◽  
S.M. Gil
Keyword(s):  
Age Effect ◽  
Male And Female ◽  
Relative Age ◽  
Water Polo ◽  
Relative Age Effect ◽  
And Performance

Relationship between the relative age effect and anthropometry, maturity and performance in young soccer players

2013 ◽  
Vol 32 (5) ◽  
pp. 479-486 ◽  
Author(s):  
Susana Maria Gil ◽  
Aduna Badiola ◽  
Iraia Bidaurrazaga-Letona ◽  
Jon Zabala-Lili ◽  
Leyre Gravina ◽  
...  
Keyword(s):  
Age Effect ◽  
Soccer Players ◽  
Relative Age ◽  
Relative Age Effect ◽  
And Performance

Relative age effect and performance in the U16, U18 and U20 European Basketball Championships

2015 ◽  
Vol 34 (16) ◽  
pp. 1530-1534 ◽  
Author(s):  
Haritz Arrieta ◽  
Jon Torres-Unda ◽  
Susana María Gil ◽  
Jon Irazusta
Keyword(s):  
Age Effect ◽  
Relative Age ◽  
Relative Age Effect ◽  
And Performance

scholarly journals Relative Age Effect and Long-Term Success in the Spanish Soccer and Basketball National Teams

2018 ◽  
Vol 65 (1) ◽  
pp. 197-204 ◽  
Author(s):  
Cristina López de Subijana ◽  
Jorge Lorenzo
Keyword(s):  
Selection Process ◽  
Age Effect ◽  
Basketball Players ◽  
National Team ◽  
Relative Age ◽  
Relative Age Effect ◽  
Professional Soccer ◽  
Premier League ◽  
Talent Selection

AbstractThe aims of this study were: i) to analyze whether relative age effect occurs in the athletes of the junior national teams and professional athletes in Spain in general and in soccer and basketball, and ii) to compare the long-term success of the players selected for the junior national team between these sports. The samples for this study were Spanish professional soccer (n = 461) and basketball (n = 250) players in the 2013-2014 premier league and players from the junior Spanish soccer (i.e., n = 273; U-17: n = 107; U-19: n = 166) and basketball (i.e., n = 240; U-18: n = 120, U-16: n = 120) teams that classified to play in the European Championships (from 2004 to 2013). Junior players (42.3%) were more frequently born in the 1st quarter of the year than the professional players (30.7%) (χ2(3) = 30.07; p = .001; Vc = .157). This was found in both basketball (χ2(3) = 12.2.; p = .007; Vc = .158) and soccer (χ2(3) = 20.13; p < .001; Vc = .166). Long-term success is more frequent in soccer, where 59.9% of the juniors selected for the national team played later in the premier league, while in basketball that percentage was 39.6% (χ2(1) = 14.64; p < .001; Vc = .201). On the other hand, 79.4% and 39.8% of the professional soccer and basketball players had been previously selected for junior national teams (χ2(1) = 60.2; p < .001; Vc = .386), respectively. The talent selection process should be reviewed as players born in the second half of the year have fewer opportunities to stand out.

scholarly journals O efeito da idade relativa influencia o tempo de participação competitiva de atletas de handebol do sexo masculino com até 13 anos de idade (Relative age effect affects the time of competitive participation in male handball athletes aged up to 13 years)

Retos ◽  
2017 ◽  
pp. 195-198
Author(s):  
Lucas Leonardo ◽  
Cristian Javier Ramirez Lizana ◽  
Tathyane Krahenbühl ◽  
Alcides José Scaglia
Keyword(s):  
Learning Environment ◽  
Early Development ◽  
Age Effect ◽  
The Other ◽  
Male Athletes ◽  
Significance Level ◽  
Relative Age ◽  
Relative Age Effect ◽  
Opportunities For Learning ◽  
Post Hoc

Resumo: A competição é um ambiente de aprendizagem cuja participação é um elemento de formação esportiva. Este estudo visa analisar as influências do efeito da idade relativa, em inglês, relative age effect (RAE), sobre as decisões dos treinadores no tocante à oportunidade de participação de atletas do sexo masculino de até 13 anos numa competição de handebol. Foram coletados 254 tempos de participação de 100 atletas em 22 partidas. Agrupou-se os dados em gA para atletas com idade acima do 3º quartil; gB para atletas entre o 3º quartil a mediana; gC para atletas com idades entre a mediana e o 1º quartil e gD para atletas com idades abaixo do 1º quartil. Utilizou-se teste de Lilliefors para verificar a normalidade dos dados e teste de Kruskal-Wallis com post-hoc de Tuckey para verificar diferenças nos tempos de participação. Adotou-se o nível de significância de p < .05. O comportamento das medianas indica que em gA metade dos atletas participaram da partida toda, resultado gradualmente menor para os outros grupos. Além disso o tempo de participação de gA foi estatisticamente superior aos demais grupos e gC foi superior a gD. Os resultados indicam que o RAE influencia as decisões dos treinadores em favor da maior oportunidade de prática competitiva aos atletas com idade relativa superior dentro da categoria e, portanto, reforça a ideia de que atletas com desenvolvimento adiantado possuem maiores oportunidades de aprendizagem no ambiente competitivo.Abstract: Competition is a learning environment, the participation in which is an element of sports training. This study aims to analyze the influences of relative age effect (RAE) on coaches’ decisions about the opportunity of participation of u-13 male athletes in handball competitions. A total of 254 participation lapses were collected from 100 athletes during 22 matches. Data was grouped as: gA athletes aged above the 3th quartile; gB athletes aged between the 3th quartile and median, gC athletes aged between the median and 1st quartile, gD athletes with ages below the 1st quartile. A Kruskal-Wallis test with Tuckey post-hoc was used to determine differences in participation time. The significance level adopted was p < .05. The gA median indicate that 50% of the athletes participated in whole match; that result was gradually lower in the other groups. Also, gA participation time was statistically higher than other groups, and gC participation time was higher than gD. These results indicate that RAE influences coaches’ decisions, as they give more opportunities of competitive practice to athletes with higher relative age. Therefore, our outcomes reinforce the idea that athletes with early development have greater opportunities for learning in a competitive environment.Resumen: La competición es un ambiente de aprendizaje cuya participación es un elemento de formación deportiva. El presente estudio pretende analizar la influencia del efecto de la edad relativa, en inglés relative age effect (RAE), sobre las decisiones de los entrenadores referentes a la oportunidad de participación en partidos de balonmano, de atletas masculinos sub 13. Se recolectaron 254 tiempos de participación de 100 atletas en 22 partidos. Se agruparon los datos en gA los atletas de edades mayores al 3° cuartil; gB para atletas con edades entre el 3°cuartil y la mediana, gC para atletas con edades entre la mediana y el 1º cuartil y gD para atletas con edades por debajo del 1° cuartil. Se utilizó prueba de Lilliefors para comprobar la normalidad de los datos y la prueba de Kruskal-Wallis com post-hoc de Tuckey para verificar las diferencias en el tiempo de participación. La adoptó un nivel de significancia de p < 0,05. El comportamiento de las medianas indica que en gA la mitad de los atletas participaron en todo el partido, resultado que se presentó gradualmente inferior en los demás grupos. Además, el tiempo de participación de gA fue estadísticamente superior a los otros tres grupos y gC fue superior a gD. Los resultados indican que el RAE influye en las decisiones de los entrenadores a favor de una mayor oportunidad de práctica competitiva a los atletas con edad relativa superior dentro de la categoría y, por lo tanto, refuerza la idea de que los atletas con mayor desarrollo tienen mayores oportunidades para el aprendizaje en el entorno competitivo.

scholarly journals Relative Age Effect in Canadian Hockey: Prevalence, Perceived Competence and Performance

2021 ◽  
Vol 3 ◽  
Author(s):  
Jean Lemoyne ◽  
Vincent Huard Pelletier ◽  
François Trudeau ◽  
Simon Grondin
Keyword(s):  
Perceived Competence ◽  
Age Effect ◽  
Performance Outcomes ◽  
Physical Activities ◽  
Ice Hockey ◽  
Self Concept ◽  
Anthropometric Measures ◽  
Relative Age ◽  
Relative Age Effect ◽  
And Performance

The term “relative age effect” (RAE) is used to describe a bias in which participation in sports (and other fields) is higher among people who were born at the beginning of the relevant selection period than would be expected from the distribution of births. In sports, RAEs may affect the psychological experience of players as well as their performance. This article presents 2 studies. Study 1 aims to verify the prevalence of RAEs in minor hockey and test its associations with players' physical self-concept and attitudes toward physical activities in general. Study 2 verifies the prevalence of the RAE and analyzes the performance of Canadian junior elite players as a function of their birth quartile. In study 1, the sample is drawn from 404 minor hockey players who have evolved from a recreational to an elite level. Physical self-concept and attitudes toward different kinds of physical activities were assessed via questionnaires. Results showed that the RAE is prevalent in minor hockey at all competition levels. Minor differences in favor of Q1-born players were observed regarding physical self-concept, but not attitudes. In study 2, data analyses were conducted from the 2018–2019 Canadian Hockey League database. Birth quartiles were compared on different components of performance by using quantile regression on each variable. Results revealed that RAEs are prevalent in the CHL, with Q1 players tending to outperform Q4 players in games played and power-play points. No other significant differences were observed regarding anthropometric measures and other performance outcomes. RAEs are still prevalent in Canadian hockey. Building up perceived competence and providing game-time exposure are examples of aspects that need to be addressed when trying to minimize RAEs in ice hockey.

scholarly journals Competition Experience, Relative Age Effect and Average Age of the Senior World Events’ Medal-Winning Basketball Players

2020 ◽  
Vol 65 (3) ◽  
pp. 5-18
Author(s):  
Zsombor Zilinyi ◽  
Ágoston Nagy ◽  
Tamás Sterbenz
Keyword(s):  
Age Effect ◽  
Head Coaches ◽  
Key Factors ◽  
Basketball Players ◽  
Association Coefficient ◽  
Relative Age ◽  
Relative Age Effect ◽  
Talent Selection ◽  
Other World ◽  
Set Up

"The International Basketball Federation (FIBA) has changed its youth competition system in 2004, and due to this regulation, many players had the chance to compete every year at youth level and later, to elevate to the top. The purpose of our study was to inspect those medal-winning European basketball players who competed in the past 19 senior basketball world events. We analysed the tendencies of selection by dissecting the set-up of successful senior national teams. We investigated each one of the 281 European basketball players who won a medal during the analysed period (2000-2019). We collected data from the archive page of FIBA. Our goal was to see whether there was a relation between the youth competition experience and the minutes spent in senior world events. We used the Cramer Association Coefficient, Relative Age Effect and average age were also inspected. We found that participation in the national youth tournaments is important but not the most exclusive factor of selection. There are opportunities for success in the adult national teams for players who have covered alternative sports careers – the factor of national youth experience is not exclusive. We suppose that head coaches utilize older and more experienced players on the Olympic Games, the average ages of successful Olympic medal-winner teams are higher than other world events’ medallists. Despite the fact that we were not able to find statistically proven and associative relationship between national youth recruitment eligibility and the minutes in game spent by successful adult players, further research could be gap fillers in exploring key factors in adulthood efficiency. Keywords: talent selection, competition experience, FIBA, basketball players, sport career."

scholarly journals “He’s Just a Wee Laddie”: The Relative Age Effect in Male Scottish Soccer

2021 ◽  
Vol 12 ◽  
Author(s):  
James H. Dugdale ◽  
Allistair P. McRobert ◽  
Viswanath B. Unnithan
Keyword(s):  
Financial Constraints ◽  
Age Groups ◽  
Age Effect ◽  
Soccer Players ◽  
Age Group ◽  
Male Youth ◽  
Youth Soccer ◽  
Relative Age ◽  
Relative Age Effect ◽  
And Performance

Significant structural, developmental, and financial constraints exist in Scottish soccer that may predicate a different approach to talent identification and development. To our knowledge, no published reports exist evaluating the prevalence of the relative age effect (RAE) in Scottish soccer players. Consequently, the aim of this study was to investigate the prevalence of the RAE among varied playing levels and ages of male Scottish youth soccer players. Birthdates of male youth players (n = 1,230) from U10 to U17 age groups and from playing levels: “Amateur” (n = 482), “Development” (n = 214), and “Performance” (n = 534), alongside a group of male Scottish senior professional players (n = 261) were recorded and categorized into quartiles (Q1 = January–March; Q2 = April–June; Q3 = July–September; and Q4 = October–December) and semesters (S1 = January–June and S2 = July–December) from the start of the selection year. Birthdates were analyzed for: (a) each playing level and (b) each age group irrespective of playing level. For the varied playing levels examined, an RAE was evident in “Development” and “Performance” playing levels only at youth level. When examining each age group, an RAE was observed in U12–U17 players only. While there was a slight asymmetry favoring Q1 born senior professional players, the RAE was not present within this group of our sample. Results from our study suggest that a bias in selecting individuals born earlier in the selection year may exist within male soccer academy structures, but not at amateur level. The asymmetry favoring chronologically older players at youth but not professional level questions the efficacy of this (un)conscious bias within male Scottish soccer players.

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