Acute caffeine supplementation improves sprint performance and passing accuracy while reducing rating of perceived exertion in rugby players

The Claim

Acute caffeine supplementation improves sprint performance and passing accuracy while reducing rating of perceived exertion in rugby players

This conclusion is most relevant to: Rugby players (various codes and competitive levels).

What the Research Shows

The conclusion draws on 1 linked study. Highlights from the cited literature:

• ▸Acute caffeine supplementation in rugby players: a systematic review and meta-analysis of physical performance, sport-specific performance, perceptual responses, and physiological markers. (Frontiers in nutrition, 2026) — A systematic review and meta-analysis of 13 randomized placebo-controlled trials found that acute caffeine supplementation in rugby players was associated with small improvements in sprint performance (Hedges' g = -0.41, 95% CI: -0.73 to -0.08) and reduced rating of perceived exertion (Hedges' g = -0.40, 95% CI: -0.73 to -0.06). A large positive effect was observed for passing accuracy (Hedges' g = 1.65, 95% CI: 0.69 to 2.61), though with high heterogeneity. No significant effects were found for jumping, strength, or metabolic markers.

How It Works

The proposed biological pathway:

• ▸Caffeine blocks adenosine receptors
• ▸Reduces perception of effort
• ▸Enhances neuromuscular activation
• ▸Result: Improved sprint and passing performance

Who Might Benefit

Evidence fit by population:

• ▸Rugby players (various codes and competitive levels)

Recommended Dose

Not specified (subgroup analysis found no moderating effect of dose)

Limitations & Caveats

Important context when interpreting this evidence:

• ▸Certainty of evidence ranged from low to very low
• ▸High heterogeneity and potential small-study effects for passing accuracy
• ▸Observational evidence suggests possible sleep and recovery concerns

Frequently Asked Questions