Athletes who use caffeine before exercising or competition may be helping themselves more than they think. Caffeine is classified as a stimulant and is the most common drug used in the world. It has the same affects that amphetamines and cocaine have, just in a lesser degree.
Choline supplements, if taken at the right time and in the right amount, might help the nervous system continue to stimulate muscle cells and keep you striding toward the marathon finish line at your desired pace
During the 1980's, triathlon events began to permit the use of wetsuits in competition. Benefits include increased buoyancy, expansion of potential workout and race venues, increased safety and general comfort