Purpose. Although the contribution of anaerobic power in soccer performance is recognized, this component of physical fitness is not well-studied in adolescent players. The aim of this study is to investigate the development of anaerobic power across adolescence in a laboratory setting. Methods. Male adolescents (N = 217; aged 12.01-20.98 y), classified into nine one-year age-groups, and adult players (as the control group, N = 29; aged 21.01-31.59 y), who were all members of competitive soccer clubs, performed the 30-s Wingate anaerobic test (WAnT) against a braking force of 0.075 Kg · Kg-1 of body mass. Results. Compared with previous age-matched studies on the general population, the participants exhibited superior WAnT scores. The Pearson moment correlation coefficient between age and peak power (Ppeak) was r = 0.71 (p mean) r = 0.75 (p peak and Pmean remained even when body mass and fat free mass were factored out.
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