Why some get fitter faster: exercise study probes muscle clues

NCT ID NCT06141512

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

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at why some people improve their aerobic fitness more than others with exercise. Researchers had 21 healthy men do short, intense cycling workouts and measured changes in fitness and certain muscle signals called myokines. The goal was to see if low responders have weaker myokine responses, which could help design better exercise plans.

What this could mean

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

Active substance: Reduced-exertion high-intensity interval training (REHIT)
What this could lead to: If successful, this could help explain why some people improve their fitness more than others with exercise, potentially leading to personalized training programs.
What could go wrong: This is a small, early-stage study with only 21 healthy men, so results may not apply to women or people with health conditions. It is observational and does not test a treatment.

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder

As listed by the trial registrant

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

GENERAL HEALTH

Contacts and locations

Locations

University of Stirling

Stirling, FK9 4LA, United Kingdom

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