Exercise showdown: HIIT vs. moderate workouts for AFib patients

NCT ID NCT03397602

Recruiting now Symptom relief Sponsor: Ottawa Heart Institute Research Corporation Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two types of supervised exercise programs—high-intensity interval training (HIIT) and moderate-intensity continuous exercise—against standard care alone in 132 adults with persistent or permanent atrial fibrillation. Participants will exercise twice weekly for 12 weeks. The goal is to see which approach better improves exercise capacity and quality of life.

What this could mean

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

Active substance: exercise training (moderate-intensity continuous or high-intensity interval)
What this could lead to: If it works, this could point toward a simple, drug-free way to improve fitness and daily well-being for people with atrial fibrillation.
What could go wrong: This is a relatively small, early-stage trial (132 participants) comparing two exercise programs. Results may not apply to all AF patients, and exercise benefits can vary widely.

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

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for ATRIAL FIBRILLATION are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

atrial fibrillation Motor Activity persistent atrial fibrillation

As listed by the trial registrant

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

ATRIAL FIBRILLATION

Contacts and locations

Locations

London Health Sciences Network
RECRUITING

London, Ontario, Canada
University of Ottawa Heart Insititue
RECRUITING

Ottawa, Ontario, K1Y 4W7, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.