Date of Award

2014

Document Type

Thesis

Degree Name

Master of Science (MS) in Physical Education: Exercise Science

Department

Physical Education, Health and Recreation

First Advisor

Dr. Wendy Repovich

Second Advisor

Dr. Christi Brewer

Third Advisor

Dr. Anthony Flinn

Abstract

The objective of this study was to investigate whether a vibration stimulus combined with foam rolling yields better power output in the lower extremities during a countermovement jump (CMJ), than a group who uses foam rolling without vibration compared to no warm-up. Eighteen female and male participants, EWU athletes volunteered for this study but three were unable to complete all testing. The design was a randomized cross-over design so all participants served as their own control by participating in all three interventions which consist of; (a) no-warm-up, (b) non-vibration foam rolling (FRNV), and (c) vibration foam rolling (FRV). Post-intervention measurements were compared for differences in anaerobic power assessed by a jump reach test using the Vertc. Each foam rolling session lasted six minutes on each leg with 90 seconds per muscle group. The muscles were foam rolled in a specific order starting with the hamstring, quadriceps gastrocnemius, and soleus. Three countermovement jumps (CMJ) were conducted to achieve maximal height. The highest max CMJ jump was used for data collection. Participants were tested with one day between sessions at the same time each day. A repeated measures ANOVA was calculated to compare the mean scores of no warm-up jump mean to FRNV and FRV jump height scores. No significant effect was found (F(2,28) = .669, p > .05) with all subjects included. Though the Shapiro Wilks test indicated a normal distribution, the population was small and the box plots showed three outliers. A second repeated measures ANOVA was then run with outliers removed to determine if significance would occur without extreme scores present, but the results were still non-significant (F(2,22) = 2.152, p > .05). In conclusion, the present study indicated that performing one and a half minutes of FRNV, FRV compared to no warm-up had a non-significant effect on jump height.

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