Study note • PMID 39438312
Acute caffeine supplementation offsets the impairment in 10-km running performance following one night of partial sleep deprivation: a randomized controlled crossover trial.
Worth trying if it fits your goal and context.
ELI5
In plain language
INTRODUCTION: Whether acute caffeine supplementation can offset the negative effects of one-night of partial sleep deprivation (PSD) on endurance exercise performance is currently unknown. (randomized trial; recreational runners).
The abstract suggests a positive effect on Time-trial performance under the tested conditions. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.
Takeaways
What the abstract suggests
- • Study question: INTRODUCTION: Whether acute caffeine supplementation can offset the negative effects of one-night of partial sleep deprivation (PSD) on endurance exercise performance is currently unknown.
- • The abstract suggests a positive effect on Time-trial performance under the tested conditions.
- • Population: recreational runners.
- • Protocol cues (title/abstract): 6 mg/kg • 8 h • 45 min • 6.9 min • 7.3 min • 7.7 min.
Protocol
Protocol (as reported)
- • Intervention/exposure: caffeine (vs placebo).
- • Dose/time/duration cues in abstract/title: 6 mg/kg • 8 h • 45 min • 6.9 min • 7.3 min • 7.7 min • 6.4 min.
- • Outcomes: Time-trial performance, Time to exhaustion.
- • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.
Fit
Who it helps, and who should skip it
Who it helps
- • Athletes similar to the study population (recreational runners) working on supplements.
- • Athletes who can measure Time-trial performance, Time to exhaustion with a repeatable workout or time-trial effort.
Who should skip
- • If you have symptoms or conditions that make the intervention risky, get professional guidance.
- • If you’re near race day and can’t safely test, defer the experiment.
Methods
What the study actually did
- • Design: randomized trial (placebo-controlled).
- • Population: recreational runners.
- • Comparator: placebo.
- • Outcomes measured: Time-trial performance, Time to exhaustion.
- • Protocol cues mentioned: 6 mg/kg • 8 h • 45 min • 6.9 min • 7.3 min • 7.7 min • 6.4 min.
- • Source: PubMed PMID 39438312 (2025) — European journal of applied physiology.
Results excerpt
What the abstract reports
“PSD resulted in compromised TT performance compared to NS in the placebo conditions by 5% (51.9 +/- 7.7 vs.”
Note: excerpts are short; for full context, read the paper.
Limits
Limitations & bias
- • Abstract-only summaries can miss critical details (population, protocol, adherence, and context).
- • Single studies often don’t generalize to your event, history, and training load; treat results as a starting point.
- • If your context differs (elite vs recreational; cycling vs running), adjust expectations and be conservative.
- • This is performance information, not medical advice.
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