This study compared variation in size, function and sport-specific technical skills of youth soccer players associated with differences in biological maturity status. 60 male soccer players of under-14 (U14) and under-17 (U17) categories were submitted to anthropometric and body composition measurements as well as motor and soccer-specific technical skill tests. Skeletal maturity was determined by skeletal age. Athletes of both categories were classified as early, on-time or late-maturing, according to the difference between chronological age and skeletal age. Body mass and height were lower in the late athletes, independent of category (P<0.01). Differences in adiposity were found only between athletes of the U14 (late
This study compared maturation, body composition and physical fitness between youth soccer athletes with different technical skills levels. Sixty-two young athletes (11-17 years) were categorized dichotomously in more skilled (n=31) and less skilled (n=31) groups based on 3 specific technical tests (Dribbling Speed Test [DST], Shuttle Dribble Test [SDT] and Slalom Dribble Test [SLDT]). Chronological and skeletal age, time of practice, body composition and 4 physical fitness tests were performed for comparisons. As expected, the 3 technical tests were correlated (r=0.47-0.54, P<0.05). More skilled subjects in DST and SDT showed (respectively) higher time of practice (effect size [ES]=0.72 and 0.90), and greater performance sit-ups (ES=1.23 and 0.81), squat jump (ES=1.10 and 1.08), countermovement jump (ES=1.11 and 1.10), and Yo-Yo test (ES=1.17 and 1.40) compared to the less skilled subjects (P<0.05). However, more skilled subjects in SLDT showed greater performance (P<0.05) only in the squat jump (ES=0.67) and Yo-Yo tests (ES=0.83). The results suggest that technical performance is associated with greater time of practice and some physical capabilities. Moreover, the DST and SDT tests seem to be good options to discriminate technical performance in youth soccer athletes.
-The aim of this study was to analyze the effect of tapering on maximum aerobic power (VO 2 max) in young male indoor soccer athletes. Participants were 78 athletes aged 12-17 years randomly divided into experimental (EG) and control group (CG). Both groups did the same training planning until the last three weeks (tapering phase). Only EG performed tapering. Tapering lasted three weeks adopting the linear tapering method. VO 2 max was estimated by Yo-Yo intermittent Recovery Level 1 early in the season and in the last week of each. Univariate analysis of covariance (ANCOVA) was conducted for repeated measures to compare VO 2 max among groups according to mesocycle. The results presented effect of time (F (4.74) = 42.02, p = 0.01) and group (F (2.76) = 35.87, p = 0.01). Overall, the findings of this study suggest that the implementation of the tapering strategy in the last weeks of training is more efficient to improve VO 2 max than the constant maintenance of loads.Key words: Athletic Performance; Athletes; Physical education and training. (F (4, 74) = 42,02, p = 0,01) e grupo (F (2, 76) = 35,87, p = 0,01
Resumo -O objetivo foi analisar o efeito do polimento na potência aeróbia máxima (VO 2max ) em jovens atletas de futsal do sexo masculino. Participaram 78 atletas com idade entre 12 e 17 anos, divididos aleatoriamente em grupo experimental (GE) e controle (GC). Ambos os grupos fizeram a mesma planificação de treinamento até as três últimas semanas (fase do polimento
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