The Short-Term Effect of Creatine, Beta-Alanine and Creatine-Beta- Alanine Combination on the Torque of Knee Extensor Muscles

The consumption of legal sports supplements in recent years has become one of the most important parts of an athlete's preparation for competitions. The aim of this study was to compare the short-term effect of creatine, beta-alanine, creatine-beta-alanine combination and the amount of their consumption on the torque of knee extensor muscles in angular velocities of 60 and 180 degree/second. The peak torque, time to reach peak torque and torque development of knee extensor muscles of dominant leg in 40 young athletes were measured by the isokinetic machine in angular velocities of 60 and 180 degree/second before and after the supplement consumption. Creatine was consumed in five consecutive days and beta-alanine supplement was consumed as capsules by the experimental group three times daily along with their major meals. Analysis of covariance was used for data analysis. No significant changes in peak torque, time to peak torque and torque development of knee extensor muscles after short-term consumption of creatine, beta-alanine and creatine-betaalanine combination in speeds of 60 and 180 degree/second. Short- term consumption (5 days) of creatine, beta-alanine and creatine-beta-alanine combination did not improve peak torque, time to peak torque and torque development of knee extensor muscles in velocities of 60 and 180 degree/second.