Master of Science (MS)
Semester of Degree Completion
Jeffrey M. Willardson
The purpose of this study was to test multiple jump performance subsequent to glute bridges performed with and without whole body vibration (WBV). Multiple jump performance was assessed via a four-hop test to examine average jump height, ground contact time, and the explosive leg power factor. Twenty recreationally active subjects, ages 18-42, with more than one year of consistent recreational resistance training experience participated. Prior to testing, one familiarization session took place that involved explanation of procedures. This included practice of glute bridging on the vibration plate and the multiple hop performance test. After the familiarization session, two testing sessions then took place 72 hours apart to allow for proper recovery. In each testing session, a pre-test of 4 countermovement jumps (CMJs) were performed, followed by a rest time of 2 minutes, followed by glute bridging, followed by a rest time of 4 minutes, and then a post-test of 4 CMJs were again performed. All subjects performed glute bridges in both conditions: on the vibration plate (experimental) and on a bench step (control). Subjects were randomly assigned to a condition for the 1st testing session, and then participated in the other condition for the second testing session. The results indicated no significant differences between the vibration and control conditions in ground contact time, explosive leg power factor, and jump height (p > 0.05). Furthermore, there were no significant differences in ground contact time and the explosive leg power factor from the pre-test to the post-test, irrespective of whether the condition was vibration or control (p > 0.05). However, there was a significant difference decrease in jump height from the pre-test to the post-test across the vibration and control conditions (p = 0.037). The findings suggest performing 4 sets of glute bridges with WBV preceding 4 countermovement jumps (CMJs) did not increase jump height, ground contact time, and explosive leg power factor compared to not using WBV.
Warpecha, Anthony, "Effects of Postactivation Potentiation Succeeding Glute Bridge Exercise on Multiple Jump Performance in Recreationally Trained Individuals" (2015). Masters Theses. 2334.