Dataset Information

Effects of Whole-Body Vibration Therapy on Distal Tibial Myotendinous Density and Volume: A Randomized Controlled Trial in Postmenopausal Women.

ABSTRACT: Whole-body vibration (WBV) therapy has been proposed as a therapy to reduce sarcopenia and improve muscle strength. The purpose of this study was to explore whether 12 months of WBV therapy increases myotendinous density and volume of the distal tibia as measured by HR-pQCT in postmenopausal women in a parallel group, randomized controlled trial with 1:1:1 allocation to three arms. Postmenopausal women (N?=?202) with low hip BMD were randomized to 20?min daily of 0.3g 30-Hz WBV therapy, 0.3g 90-Hz WBV therapy using the Juvent platform (Juvent, Somerset, NJ, USA), or no WBV. The main outcome measure was myotendinous density (HU) and volume (mm3) at the distal tibia measured at baseline and 12 months with HR-pQCT. There were no significant effects on myotendinous density or volume at the distal tibia after 12 months of daily 30- or 90-Hz WBV therapy compared with no WBV therapy. Mean change (SD) in myotendinous density from baseline was 4.6 (5.7) HU in the 30-Hz WBV group, 3.9 (6.1) HU in the 90-Hz WBV group, and 3.9 (5.4) HU in the control group (p?=?0.70). Mean change (SD) in myotendinous volume from baseline was -7 (503) mm3 in the 30-Hz WBV group, 111 (615) mm3 in the 90-Hz WBV group, and 35 (615) mm3 in the control group (p?=?0.50). In conclusion, WBV therapy at 30- or 90-Hz for 12 months had no significant effects on myotendinous density or volume at the distal tibia as measured by HR-pQCT in postmenopausal women. © 2018 The Authors. JBMR Plus Published by Wiley Periodicals, Inc. on behalf of the American Society for Bone and Mineral Research.

SUBMITTER: Boggild MK

PROVIDER: S-EPMC6524674 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Effects of Whole-Body Vibration Therapy on Distal Tibial Myotendinous Density and Volume: A Randomized Controlled Trial in Postmenopausal Women.

Boggild Miranda K MK Tomlinson George G Erlandson Marta C MC Szabo Eva E Giangregorio Lora M LM Craven B Catharine BC Slatkovska Lubomira L Alibhai Shabbir Mh SM Cheung Angela M AM

JBMR plus 20181213 5

Whole-body vibration (WBV) therapy has been proposed as a therapy to reduce sarcopenia and improve muscle strength. The purpose of this study was to explore whether 12 months of WBV therapy increases myotendinous density and volume of the distal tibia as measured by HR-pQCT in postmenopausal women in a parallel group, randomized controlled trial with 1:1:1 allocation to three arms. Postmenopausal women (<i>N</i> = 202) with low hip BMD were randomized to 20 min daily of 0.3<i>g</i> 30-Hz WBV the ...[more]

PMID: 31131343

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Project description:Whole body vibration treatment is a non-pharmacological intervention intended to stimulate muscular response and increase bone mineral density, particularly for postmenopausal women. The literature related to this topic is controversial, heterogeneous, and unclear despite the prospect of a major clinical effect.The aim of this study was to identify and systematically review the literature to assess the effect of whole body vibration treatments on bone mineral density (BMD) in postmenopausal women with a specific focus on the experimental factors that influence the stimulus. Nine studies fulfilled the inclusion criteria, including 527 postmenopausal women and different vibration delivery designs. Cumulative dose, amplitudes and frequency of treatments as well as subject posture during treatment vary widely among studies. Some of the studies included an associated exercise training regime. Both randomized and controlled clinical trials were included. Whole body vibration was shown to produce significant BMD improvements on the hip and spine when compared to no intervention. Conversely, treatment associated with exercise training resulted in negligible outcomes when compared to exercise training or to placebo. Moreover, side-alternating platforms were more effective in improving BMD values than synchronous platforms and mechanical oscillations of magnitude higher than 3 g and/or frequency lower than 25 Hz were also found to be effective. Treatments with a cumulative dose over 1000 minutes in the follow-up period were correlated to positive outcomes.Our conclusion is that whole body vibration treatments in elderly women can reduce BMD decline.However, many factors (e.g., amplitude, frequency and subject posture) affect the capacity of the vibrations to propagate to the target site; the adequate level of stimulation required to produce these effects has not yet been defined. Further biomechanical analyses to predict the propagation of the vibration waves along the body and assess the stimulation levels are required.

Dataset Information

Effects of Whole-Body Vibration Therapy on Distal Tibial Myotendinous Density and Volume: A Randomized Controlled Trial in Postmenopausal Women.

Publications

Effects of Whole-Body Vibration Therapy on Distal Tibial Myotendinous Density and Volume: A Randomized Controlled Trial in Postmenopausal Women.

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