Caffeine boost for BJJ grip? small study shows mixed results

NCT ID NCT07479875

Completed Symptom relief Sponsor: Federal University of Minas Gerais Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether taking 400 mg of caffeine (about 4 cups of coffee) 30 minutes before exercise could improve grip strength endurance in Brazilian jiu-jitsu athletes. Fifteen experienced male athletes performed grip strength tests after taking caffeine or a placebo. The results showed small improvements in some athletes, but the study was very small and more research is needed.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: caffeine
What this could lead to: If it works, this could help athletes improve short-term performance in strength-based tasks.
What could go wrong: This is a very small, early study with only 15 athletes. Results may not apply to other sports or people, and caffeine can cause side effects like jitters or upset stomach.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Motor Activity

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

EXERCISE MUSCLE STRENGTH PHYSICAL ENDURANCE

Contacts and locations

Locations

Universidade Federal de Minas Gerais (UFMG), Laboratory of Nutrition and Exercise Training (LAN-UFMG), Belo Horizonte, MG, Brazil

Belo Horizonte, Minas Gerais, 31275000, Brazil

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