Predicting the volleyball spike jump height by the force-time curve variables of countermovement and volleyball spike jump

Abstract

Problem statement: Given the importance of achieving optimal performance in sports, monitoring, predicting, and enhancing sports performance is an important element for coaches and trainers. This study aimed to investigate the correlation between the force-time (F-T) curve variables of the concentric phase of the countermovement jump (CMJ) and the volleyball spike jump (VSJ) with the VSJ height in young female volleyball players. Material and Methods: Forty-two sub-elite young female volleyball players performed three VSJ and three CMJ in game-simulated circumstances on two 40cm×60cm Kistler force platforms (9290AD, Winterthur, Switzerland). Results: Pearson’s product-moment correlations showed no significant correlation between the height of the VSJ and the F-T curve variables (rmax =.25) of the CMJ. The results of the multiple regression analysis showed no significant contribution of F-T variables of the CMJ in the prediction of the VSJ height (p =.835). Peak Force (r =.46, p =.002), Relative Peak Force (r =.31, p =.049), Peak Power (r =.56, p