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Massa, Marcelo; Moreira, Alexandre; Costa, Renato A; Lima, Marcelo R; Thiengo, Carlos R; Marquez, Walter Q; Coutts, Aaron J; Aoki, Marcelo S
Biology of Sport, 01/2022, Letnik: 39, Številka: 2Journal Article
This study examined the influence of birth date, salivary testosterone sT concentration, sexual maturity status, and general strength on the selection process of an elite Brazilian soccer club during a 12-month period, which was a 2 phase of a 24-month selection process. The stature, body mass, sT, sexual maturity status Tanner scale, and hand grip strength were assessed for 143 players during 2 weeks. From these 143 players, 100 players were dismissed DIS and 43 players were selected to integrate the club's under-14 squad. Following 1-year training period, the under-14 team was assembled with 9 players designated as starters STA, and then, comparisons were conducted taking into account a group of non-starters (selected; SEL = 34 players) and STA (n = 09). The DIS, SEL, STA players, and reference population, were compared for birth distribution. A greater proportion of players was born in the first trimester in the STA 75.0%, SEL 57.1% and DIS 50.0% groups compared to the reference population 25.8%. One-way ANOVA showed a higher sT for STA group 516.0 ± 129.9 pmol·L , compared to SEL 415.5 ± 117.9 pmol·L and DIS groups 390.9 ± 84.9 pmol·L ; p = 0.003), and Kruskall-Wallis test showed a higher gonadal development for STA compared to DIS p = 0.001. The current findings suggest a strong influence of birth date and biological maturation on young soccer players selection process. Soccer coaches should consider these influences when making decisions about player selection of elite youth players.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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