Caffeine timing and basketball performance Original paper

In this randomized crossover study in college basketball players, the timing of caffeine ingestion did not influence its effect on basketball performance.

This Study Summary was published on March 22, 2024.

Quick Summary

In this randomized crossover study in college basketball players, the timing of caffeine ingestion did not influence its effect on basketball performance.

What was studied?

Whether the timing of caffeine ingestion influences basketball performance.

The outcomes assessed were time to complete the basketball exercise simulation test (BEST), three-point shooting accuracy, vertical jump height, 6-meter sprint time, heart rate, rating of perceived exertion, blood glucose, blood lactate, and psychological measures related to performance (self-confidence, motivation, arousal, aggression).

Who was studied?

18 male college basketball players who consumed less than 200 milligrams of caffeine daily.

How was it studied?

In this randomized crossover trial, the participants completed a series of basketball performance tests on 3 occasions. The participants ingested capsules containing either caffeine (3 milligrams per kilogram of body weight) or a placebo at 75 and 15 minutes before each test, resulting in the following conditions: (i) placebo and placebo (PP), (ii) caffeine and placebo (CP), and (iii) placebo and caffeine (PC).

The participants consumed a standardized carbohydrate-rich breakfast on the day of each test, and the tests were separated by a washout period of at least 1 week.

Heart rate, rating of perceived exertion, blood glucose and lactate, and psychological measures were assessed at baseline and after each of the 4 quarters during the BEST.

What were the results?

There was a borderline statistically insignificant effect for time to complete the BEST, suggesting that performance was better in CP and PC than PP. There was no difference between CP and PC.

The overall blood glucose level was higher during CP than PP, and the blood lactate level was higher during CP and PC than PP.

This Study Summary was published on March 22, 2024.