Caffeine's Muscle-Boosting power may fade with age

NCT ID NCT07711652

Completed Knowledge-focused Sponsor: University of Alcala Source: ClinicalTrials.gov ↗

First seen Jul 17, 2026 · Last updated Jul 17, 2026

Summary

This study investigates whether caffeine improves muscle strength and endurance differently in young adults (ages 18–35) compared to older adults (ages 55–80). Participants receive either caffeine or a placebo before performing upper- and lower-body exercises. The goal is to understand if age changes caffeine's ergogenic effects.

What this could mean

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

Active substance: caffeine (3 mg/kg) or placebo (maltodextrin)
What this could lead to: If it works, this could help tailor caffeine recommendations for older adults to improve exercise performance.
What could go wrong: This is a small, early-stage study with healthy volunteers, so results may not apply to less active or older adults with health conditions.

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As listed by the trial registrant

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

CAFFEINE PLACEBO

Contacts and locations

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Locations

Facultad de Medicina y Ciencias de la Salud. Universidad de Alcalá

Alcalá de Henares, Madrid, 28805, Spain

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