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Effect of caffeine supplementation on repeated sprint running performance
A Carr1, B Dawson, K Schneiker
1School of Sports Science, Exercise and Health, University of Western Australia, Crawley, Australia. carra01@student.uwa.edu.au
The Journal of Sports Medicine and Physical Fitness
|November 11, 2008
Summary
Caffeine supplementation improved repeated sprint performance in team-sport athletes. This study found that caffeine enhanced sprint times without negatively impacting reaction times.
Area of Science:
- Sports Science
- Exercise Physiology
- Nutritional Supplementation
Background:
- Caffeine is a widely used ergogenic aid in sports.
- Its effects on repeated-sprint ability and cognitive function in team sports require further investigation.
Purpose of the Study:
- To assess the impact of caffeine ingestion on repeated-sprint running performance.
- To evaluate the influence of caffeine on reaction times in team-sport players.
Main Methods:
- Ten team-sport players ingested 6 mg/kg of caffeine or a placebo.
- Repeated-sprint running performance (5 sets of 6 x 20 m) and reaction times were measured 60 minutes post-ingestion.
Main Results:
- Caffeine significantly improved total sprint times across all sets compared to placebo.
- Blood lactate levels were significantly higher after caffeine ingestion following sets 3 and 5.
- No significant detrimental effects of caffeine were observed on simple or choice reaction times.
Conclusions:
- Caffeine ingestion 60 minutes prior to exercise enhances repeated-sprint running performance in team-sport athletes.
- Caffeine supplementation does not impair reaction time performance in this population.
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