Effect of plyometric training on vertical jumping among university volleyball players / Franklin Michael Terberayan

The purpose of this experiment was to assess the effectiveness of Plyometric training program towards vertical jumping ability of university volleyball players. Sargent jump test was done before and after the intervention completed. Total of 10 players was designed to test group (n = 5) and control group (n = 5) which prescribed. Test group plyometric exercise treatment while control group go along on their routine exercise. The finding of the descriptive statistic indicates the mean and standard deviation result for test group is 267.26 sec ± 15.25 sec (pre-test) and 280.26 sec ± 4.79 sec (posttest). While, the control group is 267.73 sec ± 18.13 sec (pre-test) and 269.73 sec ± 17.45 sec (post-test). The paired samples t-test for test group is 267.26 sec ± 15.25 sec (pre-test) and 280.26 sec ± 4.79 sec (post-test), mean decreases is -13sec. For control group is 267.73 sec ± 18.13 sec (pre-test) and 269.73 sec ± 17.45 sec (posttest), mean decreases is -2sec. The independent samples t-test examined the differences pre-test and post-test for both group. After the analysis of t-test for both test and control group, there is no significant different for pre-test and post-test. The null hypothesis was accepted with the statistically of n (5); t = -.063, p = 0.950; < .05 and n (5); t = 1.30, p = 0.22; < .05. It concludes that there were no significant different between pre-test and post-test for test and control group. As a conclusion, plyometric method the drill is aim which to enhance the explosive reaction of players through powerful muscular contraction.