A dataset of changes in exercise performance and antioxidant enzyme activity after astaxanthin supplementation in team sports athletes

16 participants were randomly divided into either a placebo group (PLA group, n=8) and an astaxanthin group (AST group, n=8). Prior to the nutritional intervention, both the PLA group and the astaxanthin group completed the Wingate anaerobic power test first, and after an interval of 24 hours, followed by an incremental exercise test, 5 ml of fasting venous blood samples were collected on the morning of the incremental exercise test and the following morning. The participants took their assigned capsules in a double-blind manner to eliminate any potential subjective bias. The nutritional intervention lasted 4 weeks, after which the participants repeated the Wingate anaerobic power test and incremental exercise test and had their blood drawn at the same time point. After the collected venous blood was settled at 4°C for 1-2 hours, the serum was separated, centrifuged at 3000 rpm for 10 minutes, and then stored in a refrigerator at -20°C. The activity of Superoxide dismutase (SOD), Catalase (CAT) and Glutathione peroxidase (GPX) was determined by the colorimetric method (BioTek Synergy H1, USA). All measurements were carried out in strict accordance with the kit instructions. 1-PLA, 2-AST in first four sheets，and 1-basketball, 2-soccer in last sheet.