KINEMATIC-DYNAMIC MODEL OF MAXIMAL SPEED OF YOUNG SPRINTERS

Abstract

Sprinting speed is a complex ability whose physiological base is mostly genetically defined. Top competition results are therefore as a rule attainable only for a small, select number of individuals. The purpose of this study was to find the most important kinematic-dynamic parameters, their developmental trend and their influence on the efficiency in maximal sprinting speed for young spinsters of both sexes, from eleven to eighteen years of age. We recorded kinematical and dynamical parameters with electronic devise - locomometer. The results show, for both sexes, that the structure of the sprint stride changes drastically in connection to the stride length and frequency, the ratio between the contact and the flight phase sand the vertical pressure on the surface. The correlation coefficients show that the duration of contact, the relative stride frequency and the vertical pressure on the surface are good indicators of the sprinting potential of young runners.