Effects of a volleyball-specific plyometric and spike training program (the “mega trend” program) on smash performance in youth female club athletes: a one-group pretest–posttest study
Jurnal Penelitian Guru Indonesia August 27, 2026 Volume 11, Number 2 4 authors
Abstract
In volleyball, a smashing performance relies on explosive power, coordination and perfect technical execution. To find out whether a 16- session volleyball-specific plyometric and spike-training program resulted in greater smash performance a study was carried out with eight youth female club volleyball athletes. Through a one-group pretest post- test quasi-experimental method, participants underwent plyometric routines combining hurdle, cone, box and pipe jumps with the spike-specific drills. The main variable here was the smash accuracy measured by the Nurhasan test across five sets where total scores were recorded against the target area before and after the program. The statistical techniques were paired- samples t test, Cohen's dz, 95 percentile CI, Wilcoxon test. From an average smash score of 5.25 ± 1.75, post-trainingscore was 8.75 ±1.58, a mean increase of 3.50 (95% CI [1.40, 5.60]), t(7)=3.95, p=.006, d z=1.40.Each player's level was enhanced. Our results point out a significant enhancement but a lack of control in the experimental design limits the establishment of an actualcausal relationship.
Authors
Rina Oktaviani
Universitas Negeri Padang
Alnedral Alnedral
Universitas Negeri Padang
Umar Umar
Universitas Negeri Padang
Yogi Arnaldo Putra
Universitas Negeri Padang
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Rina Oktaviani; Alnedral Alnedral; Umar Umar; Yogi Arnaldo Putra (2026). Effects of a volleyball-specific plyometric and spike training program (the “mega trend” program) on smash performance in youth female club athletes: a one-group pretest–posttest study. Jurnal Penelitian Guru Indonesia, 11(2), 1406-1414. https://doi.org/10.29210/027200jpgi0005
Rina Oktaviani; Alnedral Alnedral; Umar Umar; Yogi Arnaldo Putra. "Effects of a volleyball-specific plyometric and spike training program (the “mega trend” program) on smash performance in youth female club athletes: a one-group pretest–posttest study." Jurnal Penelitian Guru Indonesia 11, no. 2 (2026): 1406-1414. https://doi.org/10.29210/027200jpgi0005
Rina Oktaviani; Alnedral Alnedral; Umar Umar; Yogi Arnaldo Putra (2026) 'Effects of a volleyball-specific plyometric and spike training program (the “mega trend” program) on smash performance in youth female club athletes: a one-group pretest–posttest study', Jurnal Penelitian Guru Indonesia, 11(2), pp. 1406-1414. https://doi.org/10.29210/027200jpgi0005
Rina Oktaviani; Alnedral Alnedral; Umar Umar; Yogi Arnaldo Putra. "Effects of a volleyball-specific plyometric and spike training program (the “mega trend” program) on smash performance in youth female club athletes: a one-group pretest–posttest study." Jurnal Penelitian Guru Indonesia, vol. 11, no. 2, 2026, pp. 1406-1414. https://doi.org/10.29210/027200jpgi0005