Determining the optimal duration of plyometric training for enhancing vertical jump performance: a systematic review and meta analysis
Loading...
Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Introduction. Plyometric training is done in many ways, but countermovement jumps and squat jumps are easy and
safe methods involving minimal use of equipment to increase lower body muscular power. There is enough evidence
in the literature to support the notion that plyometric training increases vertical jump height. But the combination of
countermovement jumps and squat jumps and its impact on vertical jump height is still unclear.
Purpose. Therefore, to examine the importance of various plyometric training techniques, this meta-analytical
evaluation was created.
Materials and Methods. PubMed, MEDLINE, and Google Scholar databases were searched through August 2022.
Empirical studies are expressed in the English language and issued within the last twenty-eight years. Included squat
jump and countermovement jump interventions for improving vertical jump height. The studies used a training duration
of a minimum of four weeks or above involving a control group included. As an approach to plyometric training that
raises vertical jump height, the effects of countermovement jump and squat jump training were evaluated. To assess the
level of heterogeneity, the I2 statistics were utilized. The value of I2 above 75% indicates significant heterogeneity and
leads to the subgroup analysis method. Summary effects were calculated using standardized mean difference. With the
help of the Cochrane tool, the risk of bias was assessed.
Results. The 22 study results all met the enclosure criteria. The meta-analysis indicated that the total impact of squat
jumps training had high effects on vertical jump height [Effect Size = 0.96, (95% CI,0.57 to 1.35)]. A moderate degree
[Effect Size = 0.91, (95 % CI,0.46 to 1.37)] of effects of countermovement jumps training on vertical jump height was
reported by included interventions. Lesser than 10 weeks of plyometric training intervention duration they probably
had a small effect on countermovement jumps [Effect Size = 0.79, (95 % CI, 0.30 to 1.29)].