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Selection-Dependent Differences in Youth Elite Basketball Players' Relative Age, Maturation-Related Characteristics,
Daniel Leyhr1, David Rösch1, Sean P Cumming2
1Eberhard Karls University of Tübingen.
Research Quarterly for Exercise and Sport
|February 13, 2024
Summary
Relative age and biological maturation significantly influence youth elite basketball player selection, favoring early-born and early-maturing athletes. Coaches must consider these factors to ensure fair talent identification and avoid pre-selection biases.
Area of Science:
- Sports Science
- Talent Identification
- Youth Sports Development
Background:
- Talent selection in youth elite sports is complex, with potential biases influencing outcomes.
- Relative age and biological maturation are known factors that can affect performance and selection.
- Understanding these influences is crucial for equitable talent identification processes in basketball.
Purpose of the Study:
- To investigate the impact of relative age, maturation, and motor performance on talent selection in youth elite basketball.
- To analyze selection biases at both regional and national levels of talent identification.
- To provide insights for coaches on evaluating player potential and performance.
Main Methods:
- Assessed relative age, maturation variables (height, weight, maturity offset/timing), and motor performance (jump, agility, sprint) in 68 male youth basketball players.
- Utilized one-sample t-tests to identify pre-selection biases on the regional level.
- Employed independent samples t-tests and logistic regression to compare selected vs. non-selected players for the national team.
Main Results:
- Confirmed strong pre-selection biases favoring early-born and early-maturing players at the regional level.
- Selected players showed significant advantages in height, weight, maturity offset, and maturity timing.
- Only Countermovement jump performance was significantly better in selected players; motor skills did not significantly differentiate selection status when controlling for age and maturation.
Conclusions:
- Relative age and biological maturation significantly bias talent selection in youth elite basketball.
- Coaches at all levels (club, regional, national) need heightened awareness of these factors.
- Fairer evaluation requires considering potential beyond current performance, accounting for maturation and birthdate.
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