The Effect of Resistance Training and Whey Protein Supplement on Antioxidant Status in Overweight Young Men

The aim of this study was to investigate the effect of protein whey isolate supplementation on antioxidant status during a resistance training program in overweight young men. 30 individuals (body mass index between 25-30 kg.m2) participated in this study and were randomly divided into three groups (each 10 subjects): experimental group 1 (supplement + six weeks of resistance training) (W), experimental group 2 (placebo + six weeks of resistance training) (P), Control (C). Total antioxidant capacity (TAC) in the whey supplement group significantly increased in posttest compared with pretest (p<0.05). Glutathione (GSH) and vitamin C levels showed a significant increase in both whey supplement and placebo groups in posttest (p<0.05). It can be concluded that although exercise alone could improve the antioxidant system in the overweight subjects, the combination of resistance training and whey protein consumption had more effects.