This study tests the hypothesis that exercise training can confer additional benefit to patients in weight-loss programs in the form of improvements in either metabolic or vascular parameters or both. Patients will be randomized to either diet plus conventional physical activity or diet plus a planned exercise training. The interventions will be carried out until the patients lose between 5% and 7.5% of their initial weight. At entry and at the end, all subjects will be evaluated for outcomes such as blood glucose, lipid profile, insulin, c-reactive protein, fibrinogen, vascular reactivity (doppler ultrasound) and total and abdominal visceral fat (CT-scan). Both groups will be compared.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Masking
NONE
Enrollment
50
Low-calorie, balanced diet and a general advice on the importance of regular physical activity
Subject will receive dietary counselling (low-calorie, balanced diet) and will be enrolled in a supervised, 3 times a week, exercise training program
Hospital de Clínicas de Porto Alegre
Porto Alegre, Rio Grande do Sul, Brazil
Reduction in homeostasis model assessment of insulin resistance (HOMA-IR)
Time frame: 6 months
Change in lipid profile
Time frame: 6 months
Reduction in abdominal (visceral) fat
Time frame: 6 months
Change in vascular reactivity
Time frame: 6 months
C-reactive protein
Time frame: 6 months
Fibrinogen
Time frame: 6 months
vonWillebrand factor
Time frame: 6 months
Waist circumference
Time frame: 6 months
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