Journal
INTERNATIONAL JOURNAL OF SPORTS MEDICINE
Volume 35, Issue 6, Pages 469-475Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0033-1357185
Keywords
curcumin; oxidative stress; antioxidant capacity; endurance exercise
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Funding
- Ministry of Education, Culture, Sports Science and Technology of Japan
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The purpose of this study was to investigate the effects of curcumin supplementation on exercise-induced oxidative stress in humans. 10 male participants, ages 26.8 +/- 2.0 years (mean +/- SE), completed 3 trials in a random order: (1) placebo (control), (2) single (only before exercise) and (3) double (before and immediately after exercise) curcumin supplementation trials. Each participant received oral administration of 90 mg of curcumin or the placebo 2 h before exercise and immediately after exercise. Each participant walked or ran at 65 % of (V) over dotO(2max) on a treadmill for 60 min. Blood samples were collected pre-exercise, immediately after exercise and 2 h after exercise. The concentrations of serum derivatives of reactive oxygen metabolites measured immediately after exercise were significantly higher than pre-exercise values in the placebo trial (308.8 +/- 12.9 U. CARR, P < 0.05), but not in the single (259.9 +/- 17.1 U. CARR) or double (273.6 +/- 19.7 U. CARR) curcumin supplementation trials. Serum biological antioxidant potential concentrations measured immediately after exercise were significantly elevated in the single and double curcumin supplementation trials compared with pre-exercise values (P < 0.05). These findings indicate that curcumin supplementation can attenuate exercise-induced oxidative stress by increasing blood antioxidant capacity.
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