1.3 Whole-body vibration training increases muscle strength and mass in older women: A randomized-controlled trial

Journal: Scandinavian Journal of Medicine and Science in Sports, 2010; 20(2): 200-207

Study Context: To determine whether 10 weeks of Whole Body Vibration (WBV) training has a significant effect on strength, muscle mass, muscle power and mobility in older women.

Twenty six women were randomly assigned to a WBV training group (n=13, avg age 79 years) or a control group (n=13, avg age 76 years). The training protocol consisted of a range of static and dynamic exercises that were progressed in vibration platform intensity (2 mm to 4 mm) and vibration frequency (20 to 40 Hz), a well as the number and sets of exercises according to the overload principle.

After the training period subjects were retested and only the WBV training group improved in strength (leg press increase 38.8%), muscle cross sectional area (Vastus medialis increased 8.7% and biceps femoris increased 15.5%). Mobility in the WBV training group also improved by 9%. All gains compared to the control group were significant. Interestingly muscle power remained the same in the WBV training group but decreased in the control group.

The researchers concluded that WBV training in older women produces a significant gain in mobility, muscle size, and strength and may be a useful training regime to counteract the loss of muscle size and strength associated with age related sarcopenia.

Comments: This study demonstrated impressive gains