Effect of Whole-Body Vibration on Balance Using Posturography and Balance Tests in Postmenopausal Women

OBJECTIVE: The authors examined the impacts of whole-body vibration (WBV) applications on balance control in postmenopausal women using clinical balance tests and computerized static posturography. DESIGN: Patients were randomly divided into two groups and treated with WBV and/or home-based balance coordination exercises (BCEs). Patients in the WBV-BCE group were asked to stand on the platform in standing, squat, and deep squat positions. During each position, 30-sec vibration (30-35 Hz) and 60-sec rest periods were applied twice (20 sessions in total). The BCE program was performed by subjects twice per day. All subjects were evaluated before and after treatment using the Timed Up and Go test and the Berg Balance Scale (BBS). The fall index and the Fourier index were assessed via computerized static posturography. RESULTS: Sixty patients were recruited for the study, but only 42 patients (21 in each group) completed it. Fall index and the total values of the Fourier index 2-4 and Fourier index 5-6 frequencies indicated a significant improvement in the WBV-BCE group (P < 0.05). Both groups showed significant improvements in the Berg Balance Scale and Timed Up and Go test (P < 0.05). CONCLUSIONS: The ease of applying WBV furthermore supports its inclusion in daily treatment protocols for age-related decline in balance performance in women and improved balance and mobility measures associated with increased fall risk.