Faster, higher, stronger
Research has shown that pure caffeine can help endurance athletes run faster and cycle for longer. It can help footballers to sprint more often and over greater distances, and basketball players to jump higher. It can help tennis players and golfers to hit the ball with greater accuracy. And it can help weightlifters lift more weight.
The evidence for caffeine’s effects on sprinting is more mixed. Limited improvements have been found for events lasting under three minutes. But for races of around ten seconds, caffeine can improve peak power output, speed, and strength.