Effects of Whole Body Vibration on Strength Gain in Untrained Subjects
PublisherThe University of Arizona.
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AbstractWhole-Body vibration (WBV) may lead to increased strength gains when coupled with weight and resistance training. It has been reported to increase muscle contraction and power by increasing muscle recruitment. This study set out to see if sessions of WBV following a workout would result in increased strength gains when compared to a control group. Twenty‐four subjects, 12 men and 12 women ages 18-26, with no prior history of musculoskeletal or heart disorders underwent a 3‐week workout routine designed to target and strengthen the knee flexors and extensors. Subjects were sorted into a control or vibe group with the vibe group receiving 5 minutes of post-workout WBV (30 Hz, Amplitude 13 mm). Strength testing was conducted using an isokinetic dynanometer to record knee flexor and extensor torque at the beginning and end of the intervention. A t‐ test was performed for statistical analysis using SPSS to compare the means of the control and vibe group’s strength changes. P values ranges from 0.08 to 0.98, showing no significant differences between the vibe and control group (P > 0.05). It is concluded that in the short term, WBV following resistance training does not improve strength gains in healthy untrained subjects.
Degree ProgramHonors College