Predictors of maximal short-term power outputs in basketball players 14–16 years

Abstract

Relationships between growth, maturation and maximal short-term power outputs were investigated in 94 youth basketball players aged 14-16 years. Data included chronological age (CA), skeletal age (SA), years of training; body dimensions, estimated thigh volume, a running based short-term exercise assessed by the line drill test (LDT), the Bangsbo sprint test (BST) and short-term muscle power outputs with the Wingate anaerobic test (WAnT). Multiple linear regression analyses were used to estimate the effects of CA, skeletal maturity (SA/CA), years of training experience, body size and lower-limb volume on short-term performance in the LDT, BST and WAnT, respectively. Explained variances differed between cycle-ergometry outputs (52-54%) and running test performances (23-46%). The independent effects of predictors were small in the fatigue scores of the WAnT (4%) and the BST (11%). Skeletal maturity, body mass and leg length were primary predictors for all maximal short-term power output measures. Leg length was more relevant as a predictor than stature in the WAnT outputs, while stature and body mass appeared in the model with the running tests as dependent variable. Maximal short-term running abilities were also sensitive to years of training. In summary, skeletal maturation, body size and thigh muscle mass explained moderate to large proportions of the variance on maximal short-term performances of adolescent basketball players. The results highlight the importance of considering maturity status in evaluating the maximal short-term power outputs of adolescent athletes.

Age-related variation of anaerobic power after controlling for size and maturation in adolescent basketball players

“…In contrast, cross-sectional studies detailing the physiological characteristics of young basketball athletes are rather limited, in particular studies of all out performances (Hoare 2000;Castagna et al 2008;Montgomery et al 2008;Coelho e Silva et al 2008;Carvalho et al 2011b). The studies generally include the age range typically associated with talent identification and sportspecific intensive training programmes, , 14 -16 years (Coelho e Silva et al 2008;Carvalho et al 2011a), but information on maturity status and effects is lacking, with few exceptions.…”

Scaling lower-limb isokinetic strength for biological maturation and body size in adolescent basketball players

“…All tests were completed within 30 days with at least 48 h between testing sessions. Only male athletes were considered in this study since it was based on pre-collected data (Carvalho et al 2011a). …”

Variabilidade Do Desempenho No Line-Drill Test Em Adolescentes Jogadores De Basquetebol

“…As observações longitudinais em adolescentes sugerem que os incrementos de desempenhos anaeróbicos na adolescência estarão largamente associados ao aumento de massa muscular associados ao crescimento pubertário 29,30 . Deste modo, a interpretação dos desempenhos de mudança de direção no Line-drill Test deverão considerar a variação associada à idade e às mudanças qualitativas e quantitativas na massa muscular 11,31 e, possivelmente, às adaptações específicas do treinamento no basquetebol. No presente estudo não foi possível considerar o controle de variáveis relacionadas com a exposição ao treino dos jovens jogadores da amostra.…”

“…Durante o período de desenvolvimento pubertário, onde geralmente é feita a predição para a excelência esportiva 9 , particularmente no basquetebol onde a estatura é uma variável muito relevante. Observações em jogadores de basquetebol adolescentes destacam a importância de se considerar a variação associada à maturação e tamanho corporal nos desempenhos máximos em atletas adolescentes 10,11 . No entanto, informação sobre a possível influência da variação associada à maturação biológica e tamanho corporal sobre desempenhos máximos de curta duração que envolva a agilidade é ainda limitada.…”