Afternoon workouts may beat morning exercise for blood sugar control

NCT ID NCT05123963

Recruiting now Disease control Sponsor: Université de Sherbrooke Source: ClinicalTrials.gov ↗

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

Summary

This study tests whether exercising in the afternoon is better than the morning for improving blood sugar control in people with prediabetes. 48 participants will do high-intensity interval training three times a week for 12 weeks. Researchers will measure how the body stores and uses fat and sugar to see if timing makes a difference.

What this could mean

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

Active substance: high-intensity interval training (HIIT) on a cycle ergometer
What this could lead to: If it works, this could show that simply changing when you exercise can improve blood sugar control and reduce the risk of type 2 diabetes.
What could go wrong: This is a small, early-phase study with only 48 people. The results may not apply to everyone, and it's possible that exercise timing makes little difference.

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.

prediabetes syndrome

As listed by the trial registrant

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

PREDIABETIC STATE

Contacts and locations

Locations

Centre de recherche du CHUS
RECRUITING

Sherbrooke, Quebec, J1H 5N4, Canada

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