Increasing Ball Velocity in the Overhead Athlete: A Meta-analysis of Randomized Controlled Trials

Journal of Strength and Conditioning Research
Natalie L MyersTim L Uhl

Abstract

Overhead athletes routinely search for ways to improve sport performance, and one component of performance is ball velocity. The purpose of this meta-analysis was to investigate the effect of different strengthening interventions on ball and serve velocity. A comprehensive literature search with pre-set inclusion and exclusion criteria from 1970 to 2014 was conducted. Eligible studies were randomized control trials including the mean and SDs of both pretest and posttest ball velocities in both the experimental and the control groups. The outcome of interest was ball/serve velocity in baseball, tennis, or softball athletes. Level 2 evidence or higher was investigated to determine the effect different training interventions had on velocity. Pretest and posttest data were extracted to calculate Hedges's g effect sizes with 95% confidence intervals (CIs). Methodological qualities of the final 13 articles within the analysis were assessed using the Physiotherapy Evidence Database scale. The majority of the articles included in this analysis had an effect on velocity with the strongest effect sizes found in periodized training (Hedges's g = 3.445; 95% CI = 1.976-4.914). Six studies had CI that crossed zero, indicating that those spec...Continue Reading

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Citations

Jun 13, 2019·International Journal of Sports Physiology and Performance·Manuel Terraza-Rebollo, Ernest Baiget
Nov 13, 2020·Journal of the American College of Nutrition·ValentínE Fernández-ElíasÁlvaro López-Samanes
Apr 4, 2021·International Journal of Environmental Research and Public Health·Javier Courel-Ibáñez, Javier Llorca-Miralles
Nov 19, 2021·International Journal of Sports Physiology and Performance·Ernest BaigetFrancisco Corbi

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