Caffeine’s sports performance benefits more apparent for infrequent tea and coffee drinkers

22 Jan 2018 --- The performance-enhancing benefits of caffeine are more apparent in athletes who do not drink caffeine-rich drinks such as tea, coffee and energy drinks on daily basis. This according to research led by Dublin City University sports scientists Dr. Brendan Egan and Mark Evans.

The researchers examined the impact of caffeine, in the form of caffeinated chewing gum, on the performance of 18 male team sports athletes during a series of repeated sprints. The athletes undertook ten repeated sprints under conditions with and without two sticks of the caffeinated gum, which is equivalent to two strong cups of coffee.

They found that the caffeinated gum provided very little advantage to athletes whose bodies may have become desensitized to caffeine through a process called habituation, which occurs by having caffeine frequently.

However, the athletes who had a low habitual caffeine consumption maintained their performance in repeated sprint tests after ingesting a caffeinated chewing gum, while the performance of athletes who consumed the caffeine equivalent of three or more cups of coffee per day worsened over the course of the ten repeated sprints. This indicated that this second group did not benefit from caffeine as a performance aid.

Caffeine is regarded as one of the most popular performance-enhancing supplements among athletes. Its benefits include improved muscle strength, mental alertness, as well as reducing the perception of effort during intense activity, therefore helping athletes to perform faster and longer.

The findings from the DCU-led study were published in the International Journal of Sport Nutrition and Exercise Metabolism. They recommended that athletes who consume caffeine on a regular basis should reduce their consumption in the lead-up to a big performance if they want to receive the benefits of a caffeine supplement as a performance aid.