Wake up and smell the coffee: caffeine supplementation and exercise performance - an umbrella review of 21 published meta-analyses
Grgic J, Grgic I, Pickering C, Schoenfeld BJ, Bishop DJ, Pedisic Z
Published in British Journal of Sports Medicine
Methodology
Umbrella review of 21 meta-analyses covering caffeine and aerobic endurance, muscle strength, power and speed
Key Findings
Caffeine ingestion improved aerobic endurance, muscular strength, muscular endurance, power and jumping performance, with generally small to moderate effect sizes.
Conclusions
Caffeine is an effective and broadly applicable ergogenic aid across exercise modalities.
Limitations
Effects vary with habituation, genotype and dose timing; publication bias possible.
Outcomes Measured
In the meta-analyses, caffeine was ergogenic for aerobic endurance, muscle strength, muscle endurance, power, jumping performance and exercise speed.
Caffeine ingestion improved aerobic endurance, muscular strength, muscular endurance, power and jumping performance.
Study Details
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Disclosures
Funding
None declared
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