Whole body vibration training increases knee-extension strength and speed of movement in older women


Journal of the American Geriatric Society. Vol. 52, pp: 901-908. 2004


The aim of this study was to investigate and compare the effect of a 24 week period of Power Plate training with conventional resistance training on knee extensor strength and speed of movement. 89 postmenopausal women participated in this study. Both exercise groups performed a progressive program of knee extensor exercises, while the control group did no training for 24 weeks.

The results of the study showed that both the Power Plate and resistance group increased in muscle strength of the knee extensors after 24 weeks of training. This increase in knee extensor muscle strength resulted in a increase in counter movement jump height in the Power Plate (+19,4%) and in the resistance (+12,9%) group. No increase was seen in the control group. The speed of movement only increased for the Power Plate group (+7,4%).

Conclusion: Power Plate is a safe and suitable training method and is as efficient as conventional resistance training to improve knee-extension strength, speed of movement and countermovement jump performance in older women. For daily life functioning and to prevent falls very important qualities to remain.