The Effect of Acute Intense Exercise on Activity of Antioxidant Enzymes in Smokers and Non-Smokers

Acute intense exercise causes significant oxidative stress and consequently an increase in total antioxidant capacity; however, the mechanisms combined effects of smoking on among active non-active smokers are not clear. The aim this study was to investigate effect acute enzyme activity responses individuals exposed cigarette smoke. included 40 subjects who were equally classified as: that did (SE), do (SnE), non-smokers (NSE), (NSnE). adjusted Astrand test used exhaust subjects. Salivary enzymes peroxidase (POX), catalase (CAT), superoxide dismutase (SOD) measured, by spectrophotometry methods, at 3 different time points: pre-test (TP1), post-test (TP2), one hour after finishing (TP3). Significant (p < 0.05) group x interactions found for three enzymes. POX, CAT SOD increased all groups from TP1 TP2 decreased TP3. Only NSE showed a difference between TP3 POX +0.011 ± 0.007 +0.075 0.020 (U/mL), respectively. significantly higher compared other groups. Furthermore, NSnE had with SE SnE. NSnE, no differences observed SnE These results rest recovery lower suggesting habit may reduce ameliorating regular physical exercise-induced stress.