Effect of Sand Training on Jumping Abilities of Junior Volleyball Players

The purpose of the study was  to determine the effect of sand training on jumping abilities of junior volleyball players. For this purpose, thirty  junior volleyball players enrolled in  the S.A. I. training centre  for volleyball at  Rajnandgaon (CG) under the day boarding scheme, age ranging from 16 to 19 years, were selected as the subjects of the study. Subjects were divided randomly in two equal groups Group-A (n=15) and Group-B (n=15). Group-A  went for a program selected for  sand training for a period of 6 weeks and  group 'B' was the  control group.  The subjects of the  control group and experimental group had trained volleyball prior to the experimental program for a period of two and  four years respectively. Measurement for various variables taken at the beginning  (Pre-test)and at the end of experimental period after 6 weeks Post-test). The Mean, S.D. and t-test  were computed by the investigator for the collected  data. The difference of pre-test and post-test scores were  taken into account. The level of significance was   set at .05 level of confidence. The analysis of data revealed that the six-week sand training program  has an effect on the statistically relevant increase in the explosive type strength of the leg muscles, which in turn leads to an increase in the vertical jump of a block, spike and the long jump. The technical and tactical training program to a lesser extent in comparison to the experimental group has an effect on the development of explosive type strength. Keywords: Sand training, Explosive strength, Jumping ability, Junior Volleyball players