Effect of carbohydrate-protein supplement on anaerobic capacity after physical activity

The study examined how carbohydrate-protein (CHO-PROT) beverages affect anaerobic capacity after exercise. Fifteen male university football players, aged 20–25, participated in a 90-minute cycling session while consuming one of three drinks: CHO-PROT, carbohydrate-only (CHO), or a placebo (PLA). Results analyzed with two-way repeated measures ANOVA and pairwise comparisons (Bonferroni’s method, p<.05) showed that the CHO-PROT group experienced less decline in peak power during and after exercise compared to the PLA group (p<.01). Both CHO-PROT and CHO groups showed smaller reductions in mean power at the 90th minute of exercise compared to the PLA group (p<.01), and the CHO-PROT group maintained better mean power 24 hours after exercise (p<.05). Blood glucose levels increased more in the CHO-PROT and CHO groups than in the PLA group at all times (p<.01). The CHO group also showed a smaller drop in blood glucose at the 90th minute of exercise compared to the PLA group (p<.01). No significant differences were found in blood lactate levels between groups. Muscle soreness was lowest in the CHO-PROT group and lower in the CHO group compared to the PLA group at all times (p<.01). In summary, CHO-PROT drinks improved anaerobic performance, raised blood glucose levels, and reduced muscle soreness, with no effect on blood lactate levels.