The Effects of Creative Explosive Power Training on Jump Performance in Male Students with a Background in Volleyball

บทคัดย่อ

This study investigated the effects of a creative explosive power training program, based on bodyweight plyometric principles, on jump performance and leg strength in male university volleyball players. Thirty volunteers with volleyball experience were purposively selected and completed a six-week program, performed three times per week for 60 minutes per session. Pre- and post-tests included standing vertical jump, walking vertical jump, running vertical jump, and isometric leg extension strength, analyzed using paired t-tests, p-values, and Cohen’s d. The results indicated significant improvements across all measures. The standing vertical jump increased from 7.07 ± 1.76 to 9.73 ± 2.05 inches (p < .001, d = 2.252). The walking vertical jump rose from 8.07 ± 1.80 to 11.83 ± 2.52 inches (p < .001, d = 2.678). The running vertical jump improved from 17.77 ± 4.23 to 21.70 ± 4.50 inches (p < .001, d = 3.355). Leg extension strength increased from 128.41 ± 25.23 to 157.74 ± 30.26 kg (p < .001, d = 1.456). These findings confirm that a creative plyometric-based training program can significantly enhance explosive power and lower-body strength, key determinants of volleyball performance. The program effectively improved vertical and dynamic jumping as well as quadriceps strength, supporting its relevance for skill-related tasks such as spiking and blocking. It provides practical insights for coaches and trainers seeking to optimize training strategies in competitive volleyball and can be adapted for broader athletic populations requiring explosive movements.