VERTICAL JUMP HEIGHT PREDICTION THROUGH THE ANALYSIS OF GROUND REACTION FORCES

Abstract

This study aimed to perform a linear multivariate regression analysis of kinetics variables to predict the height obtained in the countermovement jump (CMJ). Twenty-nine men, physically active, performed 3 maximum CMJ with 1 minute of interval between each jump. Variables of force and velocity, such as peak force in the eccentric phase (r=0.405), peak velocity in the concentric phase (r=0.393), and peak of force (r=0.392), showed positive association with the jump height. The regression analysis showed that the combination of the variables explained 65% of the jump height, it also demonstrated that force and velocity are determinant for the performance of this task.