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Background Caffeine is an ergogenic aid used to enhance athletic performance. It has central, intracellular and peripheral effects, which interfere on the prolongation and perception of fatigue during exhaustive efforts. Moreover, it hones and optimizes the cardiovascular, the endocrine, the muscular and the central nervous systems. Thus, its utilization can reduce the time of racing for tri-athletes and other sportsperson.

Caffeine influence on the performance of the 5000m race