Análise cinemática da corrida de jovens velocistas

Abstract

The sprint running have been being studies since some time ago, but, the studies are developed almost exclusively with adult top sters, being not much developed with younger athletes. This study had as objective analize the kinematics characteristics of young sprinters of the district of Santa Maria and region in phase of maximum velocity. The sample of this study was composed for 7 athletes, 4 male and 3 female, with ages ranging from 14 to 18 years, practitioner of the sprint runnings. The kinematical anlyse was realized from three dimensional videography, being used to this objective the Peak Motus Sistem with 2 cameras with frequency acquisition of images of 180Hz. The data was colleted at Centro de Educação Física e Desportos (CEFD) da Universidade Federal de Santa Maria (UFSM), in district of Santa Maria-RS. Filmed and analised were the movements of one stride (3 contacts). The male subjects ran 40 meters and female subjects ran 30 meters. Each subject performed 3 trials. The results showed that young sprinters, in spite of show likeness between results and comportments in some variables, compared with top athletes the kinematics variables of the running that are more related with performance, showed values below of the found in literature to adult top sprinters. Variables as stride lenght and stride rate wich have relation with speed were inferiors to young sprinters, as well as the variables suport phase time and flight phase time, considerates importants indicators of the performance for autors. Many differences found can be associated with some deficiency in the conditional capacity as strength and flexibility, common in youngs with little time of training, but can be improved with more training of the young sprinters, as is the case of adult athletes.