Acute Effects of Two Energy Drinks on Anaerobic Power and Blood Lactate & PH Recovery in Male Athletes

In order to compare the acute effects of OR and Megabasic (two energy drinks) by a placebo, 24 volunteer male athletes (age: 24.3±2.03 yrs, height 173.56±7.02cm and weight 75.43±3.07kg) participated in two consecutive RAST tests by 40 min rest interval in between within 3 randomly divided groups. There were six times blood sampling (before and also 2 and 4 min after than both tests) in order to analyze blood lactate and PH levels (Gas analyzer) and also the anaerobic indices (Peak, mean and mean power) was calculated. The data corresponding to each group’s blood factors was compared by ANOVA for repeated measurements (post hoc: Bonferoni), their changes between two consecutive RAST tests was compared by ANOVA (post hoc: LSD) and anaerobic power data for each group was compared using pair sample t test at 0.05 significance level. Significant changes were observed in blood lactate and PH levels during repeated measurements in both RAST tests at all groups (p<0.05). There were also significant differences in the amount of the changes in between the measurements between groups (p<0.05). Additionally, Peak and min power only significantly increased in second RAST test rather than first one and mean power also significantly decreased in both energy drink groups between the first and second RAST tests (p<0.05). Consumption of the OR can affect anaerobic power during short term repeated interval activities. However, there are evident differences in between multiple brands of energy drinks with regard to the amount of the modifications in the changes at both blood lactate and PH levels, in spite of this fact that there is any consensus in this field because of the lack of comprehensive researches.