The Effects of Soybean Peptide on Lipid Peroxidation, Antioxidant Enzyme and Inflammatory Cytokines in Elite Taekwondo Player

  • Son, Chang-Seob (Department of Physical Education Graduate School, Soonchunhyang University) ;
  • Lee, Hye-Sook (Department of Beauty and Health care, Daejeon University) ;
  • Lee, Yoon-Bok (Central Research Institute, Dr. Chung's Food Co. Ltd.) ;
  • Park, Myeong-Soo (Department of Hotel Culinary Arts, Anyang Technical College) ;
  • Yoo, Yung-Choon (Department of Microbiology, College of Medicine, Konyang University) ;
  • Lee, Jung-Lim (Department of Microbiology, College of Medicine, Konyang University) ;
  • Hwang, Seock-Yeon (Department of Biomedical Laboratory Science, Daejeon University)
  • Received : 2010.10.08
  • Accepted : 2010.12.20
  • Published : 2010.12.31


The purpose of this study was to investigate the effects of soybean peptide on lipid peroxidation, antioxidant enzyme and inflammatory cytokines in male high school taekwondo players. The subjects were divided into 2 groups, which were a soybean peptide intake group (S-peptide, n=13) and a placebo intake group (Placebo, n=10). The s-peptide group took 4 g a day of soybean peptide for 4 weeks. Blood samples were taken from the antecubital vein at before taekwondo performance, after 2 and 4 weeks taekwondo performance. The plasma was analyzed for the antioxidant enzyme activity factor, lipid peroxidation and cytokines. As a result, the s-peptide group decreased lipid peroxidation (MDA) and increased the antioxidant enzyme activity factor (TAS and CAT). The plasma concentration of inflammatory cytokines, IL-6 and TNF-${\alpha}$ were significantly decreased in the s-peptide group after 4 weeks and showed significant differences between the groups. These results indicate that the intake of soybean peptide was positively improved on antioxidant enzyme and inflammatory cytokines in taekwondo player.


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