The Relative Age Effect on Athletes of the Santa Catarina Basketball Federation

IF 1.3 Q3 SPORT SCIENCES

Montenegrin Journal of Sports Science and Medicine Pub Date : 2022-03-01 DOI:10.26773/mjssm.220303

L. F. P. Maciel, Alexandra Folle, M. C. Flach, Sara Caicedo Silva, W. R. Da Silva, Mariana K. Beirith, C. Collet

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引用次数: 2

Abstract

This study analyses the relative age effect (RAE) in basketball athletes, considering the categories (U13, U15, U17, and U19), sex, number of games and average points. The participants were 1,455 Brazilian athletes aged between 9 and 19 who participated in the Santa Catarina State Basketball Championship in the 2018 season. To test the RAE, the Chi-square test (χ2) was performed to compare the observed distribution and expected birth quartiles. To verify the differences between the birth quartiles concerning the average of points and the number of games, One-Way ANOVA with post hoc Bonferroni was applied. The effect size was verified using Eta². Odds Ratios and confidence intervals were calculated for all birth quartiles. In conclusion, it was found that, in the general sample of players participating in the Santa Catarina State Basketball Championship, there was an over-representation of players born in the first two quarters of the year in most of the categories analysed. However, significant dif- ferences were found in the number of games and average points only in male players in the U13 category. These results confirm that the player selection process is negatively biased towards boys born at the end of the year in the U13 category.

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圣卡塔琳娜篮球联合会运动员的相对年龄效应

本研究从U13、U15、U17、U19四个类别、性别、场次、平均分等方面分析了篮球运动员的相对年龄效应(RAE)。参与者是1455名年龄在9至19岁之间的巴西运动员，他们参加了2018赛季的圣卡塔琳娜州篮球锦标赛。为检验RAE，采用卡方检验(χ2)比较观察分布和预期出生四分位数。为了验证出生四分位数之间关于平均点数和游戏数量的差异，采用了事后Bonferroni的单向方差分析。效应量用Eta²验证。计算所有出生四分位数的优势比和置信区间。最后，研究发现，在参加圣卡塔琳娜州篮球锦标赛的球员的一般样本中，在分析的大多数类别中，在一年的前两个季度出生的球员比例过高。然而，只有U13级别的男性球员在比赛次数和平均得分上存在显著差异。这些结果证实了球员选拔过程是负面的偏向于在年底出生的U13级别的男孩。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Montenegrin Journal of Sports Science and Medicine SPORT SCIENCES-

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

9 weeks

期刊介绍： MJSSM covers all aspects of sports science and medicine; all clinical aspects of exercise, health, and sport; exercise physiology and biophysical investigation of sports performance; sport biomechanics; sports nutrition; rehabilitation, physiotherapy; sports psychology; sport pedagogy, sport history, sport philosophy, sport sociology, sport management; and all aspects of scientific support of the sports coaches from the natural, social and humanistic side.