Effect of astaxanthin and exercise on antioxidant capacity of human body, blood lactic acid and blood uric acid metabolism

Summary Objective We investigated the effects of astaxanthin supplementation and acute high intensity exercise on serum antioxidant capacity of human body, blood lactic acid and serum uric acid metabolism. Methods Sixteen subjects were trained 28 days and were randomly divided into two groups: group A (experimental) and B (control). Four weeks later, all subjects underwent exercise on power bike. Results Immediately after exercise, the anti-oxidative capacity decreased in 2 groups, the lactic acid values of blood significantly increased, but compared with the group B the antioxidant capacity of the A group was significantly higher and blood lactate value lower. Conclusion (1) Exercise can temporarily reduce the body's antioxidant capacity, increase blood lactic acid content, and slightly decrease blood uric acid content. (2) Astaxanthin intake can eliminate free radicals produced in the body, significantly reducing the increase in blood lactic acid and reducing blood uric acid value after acute high-intensity exercise.