The effects of combined resistance and vibration training on metabolic syndrome, cardiovascular risk factors, and muscular strength in type II diabetics

Sedentary living and decrease in muscle strength may predispose to metabolic and cardiovascular diseases in type II diabetics. The aim of the present study was to investigate the effect of a period of resistance and vibration training on metabolic - cardiovascular risk factors and muscular strength in type II diabetics. Twenty three male diabetic patients aged 51±8. 9 years were divided into 2 groups; a control group and a combined resistance-vibration training group. The training sessions covered 12 weeks combined training held 4 times a week (2 days for resistance training، 2 days for vibration training) each lasting about 60 minutes. Resistance exercises were done with 60-70% intensity of one maximum repetition، and vibration training was performed with frequencies 30-35 Hz. The controls did not take part in any of the exercises. Systolic and diastolic BP، glycosylated hemoglobin، blood glucose، triglyceride، total cholesterol، HDL، LDL، and muscular strength of the knee and the arm were measured employing valid methods. In order to find out the effect of combined resistance-vibration training dependent t-test was used at the significant level P<0. 05. Combined resistance-vibration training caused a significant reduction in the blood glucose (P=0. 01)، percent of glycosylated hemoglobin (P=0. 01)، triglyceride (P=0. 001)، LDL (P=0. 05)، systolic (P=0. 001) and diastolic (P=0. 01) blood pressure، significant increase of HDL (P=0. 05)، muscular strength of lower extremities and upper extremities (P=0. 01 and P=0. 05، respectively) in type II diabetics. Moreover، comparison of mean changes between experimental and control groups showed that there were significant differences between the two groups. A 12 week combination of resistance and vibration training can be beneficial for type II diabetics because they can attenuate metabolic syndrome and cardiovascular risk factors.