Original Article

Impact of aerobic and anaerobic exercise training on oxidative stress and antioxidant defense in athletes


Song-Young Park, Yi-Sub Kwak

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Exercise mediates an excessive free radical production leading to oxi-dative stress (OS). The body has natural antioxidant systems that help decrease OS, and these systems may be enhanced with exercise train-ing. However, only a few studies have investigated the differences in resting OS and antioxidant capacity (AOC) between aerobically trained athletes (ET), anaerobically trained athletes (RT), and untrained individ-uals (UT). Therefore, this study sought to investigate the resting and postexercise OS and AOC in ET, RT, and UT. Sixty healthy young males (26.6±0.8 yr) participated in this study. Subjects were divided into three groups, ET, RT, and UT by distinct training background. Resting plasma malondialdehyde (MDA) and protein carbonyls (PC) were not signifi-cantly different in ET, RT, and UT. However, MDA and PC were signifi-cantly increased following a graded exercise test (GXT) in UT but not in ET and RT. Resting total antioxidant capacity (TAC) levels and TAC were not different in ET, RT, and UT. Interestingly, TAC levels significantly de-creased after the GXT in all groups. Additionally, UT showed lower post-exercise TAC levels compared to ET and RT. These results showed that ET, RT, and UT have similar OS and AOC at rest. However, both ET and RT have greater AOC against exercise mediated OS compared to UT. These findings may explain, at least in part, why both aerobic and anaerobic types of exercise training improve redox balance. However, it appears there is no specific exercise type effect in terms of redox bal-ance.


  Subjects and experimental design
  Exercise test
  Body composition and anthropometry
  Blood sampling
  Dietary requirements
  Statistical analysis
  Subject characteristics
  OS markers
  AOC marker


  • Song-Young Park Department of Cardiology, Boston University School of Medicine, Boston, MA, USA
  • Yi-Sub Kwak Department of Physical Education, College of Arts and Sports Science, Dong-Eui University, Busan, Korea


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