Study note • PMID 26863885
Caffeine improves muscular performance in elite Brazilian Jiu-jitsu athletes.
Worth trying if it fits your goal and context.
ELI5
In plain language
Scientific information about the effects of caffeine intake on combat sport performance is scarce and controversial. (randomized trial; elite athletes).
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: Scientific information about the effects of caffeine intake on combat sport performance is scarce and controversial.
- • The abstract suggests a positive effect on Time-trial performance under the tested conditions.
- • Population: elite athletes.
- • Protocol cues (title/abstract): 3 mg • 60 min.
Protocol
Protocol (as reported)
- • Intervention/exposure: caffeine (vs placebo).
- • Dose/time/duration cues in abstract/title: 3 mg • 60 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 (elite athletes) 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 (double-blind, placebo-controlled).
- • Population: elite athletes.
- • Comparator: placebo.
- • Outcomes measured: Time-trial performance, Time to exhaustion.
- • Protocol cues mentioned: 3 mg • 60 min.
- • Source: PubMed PMID 26863885 (2016) — European journal of sport science.
Results excerpt
What the abstract reports
“53.3 +/- 3.1 kg; respectively p < .05), countermovement jump height (40.6 +/- 2.6 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.
Coaching beta
Get a plan that adapts to your life.
Join the 26weeks.ai TestFlight beta for adaptive coaching, recovery-aware adjustments, and race-week reminders.
Keep going
Performance Science Lab
Research-backed protocols and evidence grades for endurance performance — built for athletes.
Supplements performance research
Supplements are optional. Only a few reliably move the needle, and context matters.
Caffeine for endurance performance: a practical protocol
Evidence-informed protocol: Caffeine for endurance performance: a practical protocol. Practical steps, who it helps, and what to watch out for.
Time-trial performance research for endurance athletes
Practical performance outcome used in many studies: closer to racing than lab-only metrics.
Time to exhaustion research for endurance athletes
A lab outcome that can still guide training: it often tracks fatigue resistance.