The Impact of Short-Term Garlic Supplements on Serum Total Antioxidant Capacity and Malondialdehyde in Active Men after Eccentric Exercise

Subject Areas : Microbiology

A. Sadeghi ¹ (دانشجوی کارشناسی ارشد گروه تربیت بدنی و علوم ورزشی، واحد نجف آباد، دانشگاه آزاد اسلامی، اصفهان، ایران)
M. Gholami ² (استادیار گروه تربیت بدنی و علوم ورزشی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران)

Received: 2017-12-04 Accepted : 2017-12-04 Published : 2017-12-22

Keywords: Antioxidant Capacity, Eccentric Exercise, Free Radicals, Garlic Supplementation,

Abstract :

Introduction: Garlic increases the antioxidant levels of the body. The antioxidant defensive system in the body can reduce the oxidative stress and reduces the damage to the cells. The aim of this study is to investigate the effects of short-term supplementation of garlic on the total anti-oxidative capacity, malondialdehyde serum in active men after eccentric exercise. Materials and Methods: Twenty healthy athlete males (age of 24 ± 3 years, body mass index of 24.4±1.3 kg.m-2, and VO2 max of 49.1±3.2 ml/kg/min) were randomly assigned to two equal groups: experimental (daily intake of 700 mg garlic capsules) and control (placebo) groups who used dextrose capsules for four weeks. The blood samples were taken at baseline, after completing a four-week period supplementation and after eccentric exercise (45 minutes of running with 9 set of 5-minutes with 80% oxygen consumption and 10% with a negative slope between each set of 2 minute active recovery with zero slopes). The parameters were analyzed using repeated measure ANOVA, Bonferroni, with a significance level of a=0.05. Results: Garlic supplementation for four weeks increased the total antioxidant capacity in the pre exercise (P<0.05) significantly, but decreased after downhill running in two groups (P <0.05). Garlic supplementation did not have any effects on Malondialdehyde, therefore, there are not any significant differences between Malondialdehyde after supplementation among the two groups, but increased after downhill running in two groups. Conclusion: Garlic supplementation might reduce oxidative stress damage by increasing of TAC after eccentric exercise in active men.  

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