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Abstract In volleyball game, vertical jump is an important component in doing spikes and blocks. One of the exercise that can be used to improve the vertical jump is plyometric depth jump exercise. This study aims to determine the effect of plyometric depth jump exercise toward changes in vertical jumps of volleyball player UKM Bola Voli. This study was a quasi-experimental research with time series design approach. The sample sizes were 20 students and plyometric exercise was given 12 times (1 month). The sample inclusion criteria were men on aged 18-25 who are willing to become respondent and sign informed consent. The data collected was vertical jump value of volley ball player UKM. The results showed that there was an effect of plyometric depth jump exercise with the intensity of 4 set of 12 repetitions and 5 sets of 12 repetitions with significance value of 0.017 and 0.000 (p<0.05). This study showed an increase in vertical jump value in volley ball players UKM, Hasanuddin University.
Sari et al. (Wed,) studied this question.