Based on the current literature is appears that creatine supplementation can enhance performance during high intensity intermittent exercise. This may be of particular relevance to team sport athletes and athletes in training. More broadly, an activity which consists of intermittent, short periods of high intensity work followed by rest. Examples may include the various football codes and court sports such as hockey or tennis. Any effects of supplementation on single effort sprint type activities will depend on the duration of the activity. There may be benefits for maximal activities lasting from a few seconds to a few minutes. More research is needed before a definite guideline can be given. The training considerations deserve more description. Nuttall 12 has suggested that supplementation may allow increased training loads to be achieved due to facilitated recovery. A greater training effect may be able to be achieved. Although creatine supplementation has resulted in increased free creatine and PCr concentrations for many subjects this may not occur for all. If an athlete is considering supplementation monitoring of urine for creatinine and creatine may be useful for determining uptake and possible renal damage. Furthermore, the dietary habits of the athlete may be of importance when considering the dosage to be given. Due to the time lag for increased creatine levels and the unconfirmed safety of long term creatine supplementation it is recommended that athletes cycle supplementation in monthly blocks. One week with supplementation to three weeks without should be adequate to maintain creatine stores. Once again, individual differences will apply. Athletes who are vegetarians may be able to make large gains from creatine supplementation due to low baseline levels. Again monitoring, dosage, and the type of activity performed become important. While the hypothesis for enhanced endurance performance exists, it is yet to be clinically proven. Indeed some studies have showed detrimental effects of supplementation on endurance performance. Supplementation is not recommended for athletes who engage in endurance activities.