Effects of Whole Body Vibration on Ankle’s Muscle Performance in Elderly
Background: Impairment of muscle power of the lower extremities is a major risk factor for fall in older population. Whole body vibration can be used to improve the muscle performance and prevent fall injuries. Purpose: the purpose of the study was to investigate the effect of whole body vibration on ankle’s muscle performance in elderly. Material and methods: Thirty randomly healthy older males and females ranging between 64 and 75 years of age participated in this study. They were randomly divided into two equal groups, each contains fifteen participants. The first control group (A) adopted a squat position with frequency 0 Hz, the second experimental group (B) in addition to the squat position, received a vibration frequency 50 Hz, the amplitude was from 5 – 8 mm; the training period was for 2 months, 3 times per week and the vibration protocol was 5 minutes (1 min vibration, 1 minute rest for 5 minutes); Right ankle planter flexors power was measured using the Biodex Isokinetic Dynamometer. Results:There was a statistical significance difference in the ANOVA test for (group A) pre and post treatment as the F value was 3.91 and P value was 0.01, as well as for (group B), there was a statistical significance difference in the ANOVA test pre and post treatment as the F value was 77.41 and the P value was 0.0001. Conclusion: There was a significant effect of whole body vibration on ankle’s muscle performance in elderly.
Journal of American Science ,2014; 10 (7): 180-184 (ISSN: 1545-1003)