Russo CR, Lauretani F, Bandinelli S, Bartali B, Cavazzini C, Guralnik JM, Ferrucci L. High-frequency vibration training increases muscle power in postmenopausal women1,21Stratec Medizintechnik, Novotec, and Unitrem provided the peripheral quantitative computerized tomograph and the forceplates.2No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit upon the author(s) or upon any organization with which the author(s) is/are associated.
Arch Phys Med Rehabil 2003;
84:1854-7. [PMID:
14669194 DOI:
10.1016/s0003-9993(03)00357-5]
[Citation(s) in RCA: 128] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE
To test whether training on a high-frequency (28Hz) vibrating platform improves muscle power and bone characteristics in postmenopausal women.
DESIGN
Randomized controlled trial with 6-month follow-up.
SETTING
Outpatient clinic in a general hospital in Italy.
PARTICIPANTS
Twenty-nine postmenopausal women (intervention group, n=14; matched controls, n=15).
INTERVENTION
Participants stood on a ground-based oscillating platform for three 2-minute sessions for a total of 6 minutes per training session, twice weekly for 6 months. The controls did not receive any training. Both groups were evaluated at baseline and after 6 months.
MAIN OUTCOME MEASURES
Muscle power, calculated from ground reaction forces produced by landing after jumping as high as possible on a forceplate, cortical bone density, and biomarkers of bone turnover.
RESULTS
Over 6 months, muscle power improved by about 5% in women who received the intervention, and it remained unchanged in controls (P=.004). Muscle force remained stable in both the intervention and control groups. No significant changes were observed in bone characteristics.
CONCLUSION
Reflex muscular contractions induced by vibration training improve muscle power in postmenopausal women.
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