Why is Endurance Improved with Caffeine?
Well, it has not been proven, but the common explanation is that endurance is improved although no studies have shown an increase on caffeine’s ergogenic effect on athletic performance, although habitual caffeine drinkers experience less effect that people who do not consume it regularly. The common explanation to why endurance is improved with caffeine is that muscle glycogen is spared, as once muscle glycogen is depleted you cannot exercise to your full potential. Glycogen sparing, caused by caffeine ingestion, helps stop the body from using up all the glycogen in the muscles.
