CHANGES IN PHYSICAL PARAMETERS PERFORMANCE IN STARTING SIX AND SUBSTITUTES OF UNIVERSITY VOLLEYBALL PLAYERS: A SHORT REPORT

 Dr. Amar Kumar,Dr. S. Mukherjee and Dr. Keshav Singh Gurjar

Abstract

The aim of this study was to investigate the changes in physical parameters produced during an in-season resistance training (RT) program on 12 intervarsity volleyball players. Moreover, differences in the adaptive responses between players who played most of the times (starters: S) and players that were mainly used as substitutes (non starters: NS) were analyzed. The RT program consisted of 2 sessions per week over 12 weeks (Tables 2a and 2b). The main RT exercises were, respectively, the bench press (BP) and parallel squat (PS), plus jumping and throwing. Subjects performed 3 sets of 3-6 reps with a load of 50-80% 4RM-BP; and 3 sets of 3-6 reps with a load of 30-75% of 4RM-PS. On completion, all athletes then performed three explosive strength exercises: (i) vertical jumps into a box; (ii) vertical jumps with additional weights (3 sets of 5 reps); (iii) throwing medicine ball (3 sets of 10 reps. with a 3kg medicine ball). Rests of 2 minutes were permitted between sets and between categories. Of greatest interest was the lack of any interactions for group (S or NS) by time effects for any of the tests (p>0.05), except for the bench press in the final test (p=0.025). This indicates that both groups responded similarly to the training program. There were, however, several main effects for time, showing significant improvements for the entire group of population. In fact, for all physical parameters both Starting six and Non Starting six improved significantly (p<0.001). Finally, no relationship was found between any physical parameters and the changes in performance for all groups.

 Keywords:  Volleyball, Throwing, Sets and Repetitions.