Caffeine has been shown to enhance athletic performance under certain conditions. What can it add to your game? A study published in the Journal of the International Society of Sports Nutrition tested its potential on 10 healthy female team sports athletes in their mid-20s.
An hour before running an intermittent treadmill drill and performing countermovement jumps, some subjects got a pill containing 6 mg of caffeine per kilogram of body weight. Others got a placebo containing artificial sweetener. Caffeine significantly increased eccentric power and the strength of knee flexors and extensors. But there weren’t any differences in countermovement jump performance between groups.