Ali Reza Safarzade; Fahimeh Shafiee; Elaheh Talebi-Garakani; Rozita Fathi
Volume 4, Issue 1 , May 2014, , Pages 27-38
Abstract
Aim: The purpose of this study was to investigate the effects of aerobic exercise training on plasma vaspin concentration and insulin resistance index in sedentary overweight women. ...
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Aim: The purpose of this study was to investigate the effects of aerobic exercise training on plasma vaspin concentration and insulin resistance index in sedentary overweight women. Methods: Twenty six sedentary overweight women (aged: 43.1 ± 12.6 year, weight: 73.4 ± 10.0 kg, BMI: 29.1 ± 3.2 kg/m2) voluntarily participated in an 8-weeks aerobic exercise training program included running with 40- 80% reserve heart rate, 20- 45 min/day. Anthropometric and metabolic parameters in addition to plasma vaspin concentration were measured at baseline and after 8 weeks of the training program. To compare changes in variables according to body composition alterations, we divided the subjects into responders (defined as participants who lost ≥1% of baseline body fat percentage), and non-responders (defined as participants with no change or <1% reduction in body fat percentage). Results: After 8 weeks of aerobic exercise training we did not find any significant changes in plasma vaspin concentration. Nevertheless, body weight and body fat percentage decreased significantly (P≤0.05) and plasma vaspin concentrations increased significantly (P≤0.05) in responders, but not in non-responders. Changes in plasma vaspin concentrations were significantly correlated with changes in plasma insulin and glucose levels, and insulin resistance index (HOMA-IR) only in non-responders. Conclusions: This study indicated that reduction in body fat percentage induced by aerobic exercise training could be an effective factor to increase plasma vaspin levels in sedentary overweight women.
