Changes of Serum Retinol Binding Protein 4 Levels Following 8 Weeks Moderate Aerobic Exercise

PURPOSE The purpose of this study was to examine the effects of 8 weeks moderate intensity aerobic exercise on serum retinol binding protein 4 (RBP4) levels in female athletes. METHODS Twenty female karate athletics were randomly assigned to one of the exercise group (n = 10) or control group (n = 10). The training group performed endurance training 3 days a week for 8 weeks at an intensity corresponding to 50-60% individual maximum oxygen consumption for 45 min. RESULTS Body mass and body mass index increased (P < 0.05) after 8 weeks aerobic exercise compared to the control group. For waist to hip ratio (WHR), body fat percentage and maximal oxygen consumption there were no significant differences between the exercise group and the control group. There were virtually no changes in body fat percentage, fasting glucose, insulin, insulin resistance and RBP4 levels after 8 weeks training. CONCLUSION Serum RBP4 level was not affected by 8-week moderate aerobic exercise in female athletes.