The Effect of Weighted Jump Rope Training as an Intervention on the Shoulder Strength of Division III College Volleyball Players

Abstract

The goal of this action research project was to examine the impact of weighted jump rope training on shoulder strength of college volleyball players. The independent variable was the type of training exercise, and the dependent variable was the shoulder strength of the participants as measured by the kneeling power ball throw. The measurement tool was a kneeling overhead throw. This study used the use of a pre-test/post-test design, with one person in each condition, to compare data from before and after the intervention was administered. Due to small group sizes secondary to COVID-19 precautions, results were not subjected to statistical analysis and hypotheses were not formerly tested. Both groups increased from pre-test measures to post-test. The weighted training group had a larger gain of five inches after intervention, as compared to the unweighted jump rope group that had a gain of 1.33 inches.