THE VOLLEYBALL APPROACH: AN EXPLORATION OF RUN-UP LAST STRIDE LENGTH WITH JUMP HEIGHT AND DEVIATION IN LANDING

Abstract

The main aim of present research was to find out a significant correlation between approach run-up last stride length and the height of jump and landing deviation. Fourteen top elite volleyball players have been served for this study. A Mikro-Mak Motion Analyzer with Win-Analyze program has been used for this study. A Philips video camera with 240 frames per second has also been used to better trace the markers on the shoulder, hip, knee, ankle, and toe. The program enabled us to find out the displacement and velocity of all parts and especially the toes’ in order to measure the different last stride lengths and the deviation from vertical axis. Although we were expecting to get a significant correlation between this parameter and jump height, as in long stride the CG is displaced in longer range with higher horizontal motion than when the player jumps with shorter stride, but the findings did not support this idea. The results are given in Tables 1-4.