ANALYSIS OF LOWER LIMBS’ STRENGTH AND ASYMMETRIES BY ISOKINETIC AND VERTICAL JUMP TESTS

Abstract

The aim of this study was to verify the correlation between biomechanical characteristics of muscle force measured by isokinetic and vertical jump tests for each lower limb. Peak torque and total work of 46 professional male soccer players were assessed with an isokinetic dynamometer at 60°/s, 120°/s and 180°/s and maximal strength, maximal power and impulse were determined during countermovement jump (CMJ) on a double force platform. A factor analysis of all analyzed variables resulted in two independent factors (F1, F2), where factor F1 is characterized by peak torque and total work at 180o/s and factor F2 by maximal power and impulse during CMJ. Only low correlations between the variables determined by isokinetic test and CMJ were observed.