Effects of whole body vibration in postmenopausal osteopenic women on bone mineral density, muscle strength, postural control and quality of life: the T-bone randomized trial.


PURPOSE: Osteopenia is common in postmenopausal women and effective interventions increasing or stabilizing bone mineral density (BMD) to prevent fractures are urgently needed. METHODS: Sixty-five postmenopausal women diagnosed with osteopenia (T-score between -1.0 and -2.5) were randomly assigned to either a vibration training group (VT), a resistance training group (RT), or a control group (CG). BMD T-score values (primary endpoint) were assessed at baseline (T0) and after 12 months (T12), secondary endpoints (muscle strength, postural control, and health-related quality of life) at baseline (T0), after 6 months (T6), after 12 months (T12), and as follow-up after 15 months (T15). RESULTS: After the intervention period, neither the VT nor the RT showed any significant changes in BMD T-score values compared to the CG. Isokinetic strength improved significantly within all training groups, with the exception of the flexors of VT at an angular velocity of 240 degrees /s. Health-related quality of life as well as postural control improved significantly for the RT only. CONCLUSIONS: We conclude that participants of all three groups were able to maintain their BMD. The improvements in quality of life and postural control after resistance training are nevertheless meaningful for postmenopausal osteopenic women and support the importance of regular loadings of the musculoskeletal system. This study was retrospectively registered in January 2022 at the DRKS (S00027816) as clinical trial.

Author: Kienberger Y, Sassmann R, Rieder F, Johansson T, Kassmann H, Pirich C, Wicker A, Niebauer J

Organization: University Institute of Physical Medicine and Rehabilitation, Paracelsus Medical University, Salzburg, Austria.

Year: 2022

GID: 5752

Created on: 15.08.2022

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