During phase 1 both groups received a placebo. Testing consisted of a several high intensity intermittent cycling protocols on a stationary cycle ergometer. Oxygen consumption was measured during all bouts using a Quinton Q-Plex I. Blood samples were also taken periodically during each bout for blood lactate analysis. The placebo group showed no significant change in time to exhaustion from phase 1 to phase 2 for any of the bouts tested. Once creatine enters the muscle it is phosphorylated to creatine phosphate.
Creatine phosphate is a major provider of energy during high intensity short term exercise.
It is not surprising then that creatine supplementation can enhance the performance of this type of exercise. Since creatine also lowers lactic acid levels and the feeling of fatigue, this might allow for more intense or longer training sessions. The present study also showed that oxygen consumption was reduced by creatine supplementation. This might also allow for more intense training. Therefore creatine supplementation appears to be a valuable aid for the enhancement of training and performance of many athletic events.