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|Effects of whole-body vibration versus Pilates exercise on bone mineral density in postmenopausal women: a randomized and controlled clinical trial|
|de Oliveira LC, de Oliveira RG, de Almeida Pires-Oliveira DA|
|Journal of Geriatric Physical Therapy 2019 Apr-Jun;42(2):E23-E31|
|7/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*|
BACKGROUND AND PURPOSE: Decreased bone mineral density (BMD) is a common condition in postmenopausal women that can be managed with impact activities. Among the activities studied are the whole-body vibration (WBV) and muscle-strengthening exercises. The purpose of this study was to compare the effects of WBV versus Pilates exercise on BMD in postmenopausal women. METHODS: In this study, 51 postmenopausal women were randomized into 3 groups: vibration (n = 17), Pilates (n = 17), and control (n = 17). Outcomes were the areal bone mineral density (aBMD) (lumbar spine, femoral neck, total hip, trochanter, intertrochanter, and ward's area) assessed by dual-energy x-ray absorptiometry at baseline and follow-up. The interventions were performed 3 times a week for 6 months, totaling 78 sessions. The analysis was performed with intention-to-treat and covariance analyses adjusted for baseline outcomes. RESULTS: After 6 months, 96.1% of the participants completed the follow-up. The analyses demonstrated significant mean between-group differences in favor of the interventions: vibration versus control, for the aBMD of the lumbar spine (0.014 g/cm; 95% confidence interval (CI) 0.006 to 0.022; p = 0.018, d 1.21) and trochanter (0.018 g/cm; 95% CI 0.006 to 0.030; p = 0.012, d 1.03); and Pilates versus control, for the aBMD of the lumbar spine (0.016 g/cm; 95% CI 0.007 to 0.025; p = 0.008, d 1.15) and trochanter (0.020 g/cm; 95% CI 0.010 to 0.031; p = 0.005, d 1.28). CONCLUSION: In postmenopausal women, 3 weekly sessions of WBV or Pilates administered for 6 months provided an equal effect on BMD.