Abstract
BackgroundPatients with diabetes type 2 suffer from many complications such as peripheral neuropathy (PN). PN impairs postural stability and muscle strength. Therapeutic exercise may improve functional abilities of diabetic patients but they are unwilling to participate in exercise programs. Whole Body vibration (WBV) is a new somatosensory stimulation which is easy to use and time-efficient. The effects of WBV on balance and strength of diabetic patients had not been studied; therefore the aim of this study was to assess the effects of WBV in type 2 diabetes patients.MethodsIt was a quasi-RCT study performed between March 2011 and February 2013. Twenty patients were randomly assigned into either a whole body vibration group, or a control group. WBV group received vibration (frequency: 30 Hz, amplitude: 2 mm) twice a week for 6 weeks.Muscle strength, Timed Up & Go Test (TUGT) and Unilateral Stance Test and balance parameters were measured at baseline and after the intervention.ResultsWBV had significantly increased strength of tibialis anterior (P = 0.004) and quadriceps muscles (P = 0.05) after 6 weeks of training. TUGT time decreased significantly (P = 0.001) in the WBV group.ConclusionsApplication of WBV enhanced muscles strength and balance in patients with diabetes type 2-induced peripheral neuropathy. The changes may be due to muscle tuning hypothesis and altered postural control strategies.Trial registrationIRCT201106156806N1
Highlights
Patients with diabetes type 2 suffer from many complications such as peripheral neuropathy (PN)
The objective of this study was to evaluate the effects of Whole Body vibration (WBV) on balance and strength in patients with type 2 diabetes accompanying mild to moderate peripheral neuropathy
The inclusion criteria were having had the history of Diabetes Mellitus according to the American Diabetes Association (ADA) guideline 2001 [21] or using oral hypoglycemic agent; HbA1C < 8.5 %; Body Mass Index (BMI) between 25 and 35; Michigan Diabetic Neuropathy Score (MDNS) [22, 23] between 13 and 29 and age between 50 and 70 years
Summary
Patients with diabetes type 2 suffer from many complications such as peripheral neuropathy (PN). Peripheral neuropathy is a common complication involves more than half of the patients with diabetes [3, 4] accounts for lower extremity somatosensory deficits as well as postural impairments and a high risk of falling [5,6,7]. Sayer et al demonstrated that diabetic patients have significantly declined muscle strength and higher odds of impaired physical function in comparison to those without diabetes [8]. There is only one case report study that has evaluated the short term effects of WBV on patients with type 2 diabetes [20]. The objective of this study was to evaluate the effects of WBV on balance and strength in patients with type 2 diabetes accompanying mild to moderate peripheral neuropathy
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