Abstract
Background:Whole body vibration (WBV) has been used to increase physical activity levels in patients with type 2 diabetes mellitus (T2DM). Objective:To carry out a systematic review of the effects of WBV on the glycemic control, cardiovascular risk factors, and physical and functional capacity of patients with T2DM. Method: MEDLINE, LILACS, PEDro, and Cochrane Central Register of Controlled Trials were searched up to June 1st, 2015. Randomized controlled trials investigating the effects of WBV, compared to control or other intervention, on blood glucose levels, blood and physical cardiovascular risk factors, and physical and functional capacity in adult individuals with T2DM. Two independent reviewers extracted the data regarding authors, year of publication, number of participants, gender, age, WBV parameters and description of intervention, type of comparison, and mean and standard deviation of pre and post assessments. Results: Out of 585 potentially eligible articles, two studies (reported in four manuscripts) were considered eligible. WBV interventions provided a significant reduction of 25.7 ml/dl (95% CI:-45.3 to -6.1; I2: 19%) in 12 hours fasting blood glucose compared with no intervention. Improvements in glycated hemoglobin, cardiovascular risk factors, and physical and functional capacity were found only at 12 weeks after WBV intervention in comparison with no intervention. Conclusion: WBV combined with exercise seems to improve glycemic control slightly in patients with T2DM in an exposure-dependent way. Large and well-designed trials are still needed to establish the efficacy and understand whether the effects were attributed to vibration, exercise, or a combination of both.
Highlights
Physical activity plays an important role in prevention and control of type 2 diabetes mellitus (T2DM) and its related complications[1]
We considered as the primary outcome blood glucose levels, assessed by 12-hours fasting blood glucose (12-h FBG) or glycated hemoglobin (HbA1c)
It seems that the 12-week progressive intervention with Whole body vibration (WBV) and exercise was sufficient for a statistically significant, but slight improvement in the 12-h FBG and HbA1c of individuals with T2DM, in comparison with no intervention
Summary
Physical activity plays an important role in prevention and control of type 2 diabetes mellitus (T2DM) and its related complications[1]. Both aerobic and resistance training improve insulin action and can assist with the management of blood glucose levels, lipids, blood pressure, cardiovascular risk, mortality, and quality of life; exercise must be undertaken regularly for continued benefits[1,2]. Physical disabilities and perceived discomfort when exercising are challenges to adherence to physical activity[3,4]. To help people with diabetes improve their quality of life, physical therapists can intervene with physical
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