Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
©Journal of Sports Science and Medicine (2015) 14, 634 - 642

Research article
The Relative Age Effect and Physical Fitness Characteristics in German Male Tennis Players
Alexander Ulbricht1, , Jaime Fernandez-Fernandez2, Alberto Mendez-Villanueva3, Alexander Ferrauti1
Author Information
1 Department of Training and Exercise Science; University Ruhr-Bochum, Germany
2 Sports Research Centre, Miguel Hernandez University, Elche, Spain
3 Strength & Conditioning Coach; Football Performance & Science Department (ASPIRE, Academy for Sports Excellence), Qatar

Alexander Ulbricht
‚úČ Department of Training and Exercise Science; University Ruhr-Bochum, Germany
Publish Date
Received: 02-02-2015
Accepted: 22-06-2015
Published (online): 11-08-2015
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The aims of the study were to test: 1) whether the relative age effect (RAE) was prevalent in young (U12-U18) German male tennis players; 2) the potential influence of age and/or skill level on RAE and 3) whether maturity, anthropometric and fitness measures vary according to birth date distribution in elite youth tennis players. For the present study the following male populations were analysed: Overall German population (n = 3.216.811), all players affiliated to the German Tennis Federation (DTB) (n = 120.851), players with DTB official ranking (n = 7165), regional (n = 381) and national (n = 57) squads (11-17 years old), as well as the top 50 German senior players were analyzed. RAEs were more prevalent at higher competitive levels with more players born in the first quarter of the year compared with the reference population for ranked (29.6%), regional (38.1%) and national (42.1%) players. No systematic differences were found in any of the maturity, anthropometric and fitness characteristics of the regional squad players born across different quarters. RAEs are present in the DTB competitive system and it was more pronounced at higher competitive levels. Compared with early born, late born players who were selected into elite squads did not differ in maturation, anthropometric and fitness characteristics.

Key words: Birth distribution, racket sports, maturation, physical characteristics

           Key Points
  • RAEsexist in the selection of youth tennis players in Germany, a greater percentage of players analyzed was born in the 1st quarter compared to all licensed tennis players in the country, and more pronounced with an increased competition level in youth players.
  • Players born later in the selection year and still selected in elite squads were likely to be similar across a range of physical fitness attributes compared with those born earlier in the year.
  • The selection process should be reevaluated and changed to reduce the impact of RAEs on tennis players.
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