Efeito do treinamento e maturação sexual sobre o crescimento, composição corporal e desempenho motor em adolescentes do sexo masculino / Effect of training and sexual maturation on growth, body composition and motor performance in male adolescents

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The present study aims to understand the influence that the maturation status and the systematized training may exert over growth, body composition and motor performance of young soccer players in comparison to individuals belonging to the same maturational stage who do not practice any regular training. A sampler with 39 subjects was analyzed and divided into two groups: 22 in the trained group (TG) and 17 in the non trained group (NTG). Afterwards, these individuals were divided and characterized according to their sexual maturation stage, as proposed by Tanner (1962). They were submitted to gauging of anthropometric measures of stature and weight in order to determine the body mass index (BMI), while these two variables, associated to skinfold thickness, limb circumferences and bone breadth were used to establish somatotype. A battery of motor tests was selected to determine the level of motor performance using indicators of aerobic power, anaerobic power and capacity and flexibility. Variance analysis (ANOVA TWO-WAY) was used to treat the data obtained in each of the variables, followed by the post hoc Tukey test when p<0,05 to identify the differences between the groups and the maturation stages. According to the results, there was a significant increase of stature and body mass, considering the evolution of the maturation stages. As for the body composition, it was possible to verify a significant decrease of subcutaneous adipose tissue as the maturation level increases, while the systematized training did not influence the amount of body fat. As for the somatotype, the results indicate there was no difference between the groups, nor between the maturation stages, though there has been a significant difference of the ectomorphy in the interaction between training and maturation. There was a significant influence of training in the motor tests, when the TG individuals obtained higher values in all the tested variables. On the other hand, considering maturation, the values of the tests vary according to the tested variable, and there were no differences in the tests that indicate the aerobic power, the anaerobic power of the legs and the anaerobic capacity of the abdominal muscle. Although, it was verified a positive influence of maturation in the tests, indicating the power and the anaerobic capacity of arms

ASSUNTO(S)

growth sexual maturation desenvolvimento motor composição corporal body composition motor performance maturidade sexual crescimento

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