Heart rehab gets a HIIT: study tests best way to boost fitness

NCT ID NCT04555512

Ongoing Disease control Sponsor: Mayo Clinic Source: ClinicalTrials.gov ↗

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

Summary

This study compares two methods of prescribing high-intensity interval training (HIIT) for people in cardiac rehabilitation. Thirty adults with heart conditions will follow a 12-week exercise program to see which prescription approach improves fitness, heart function, and oxygen use better. The goal is to find the most effective way to help heart patients recover through exercise.

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) exercise program
What this could lead to: If successful, this could help doctors prescribe better exercise routines for heart patients, leading to improved fitness and recovery.
What could go wrong: This is a small, early-stage study with only 30 participants, so results may not apply to all heart patients. The exercise program may be too intense for some.

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.

acute coronary syndrome myocardial infarction

As listed by the trial registrant

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

CARDIAC REHABILITATION

Contacts and locations

Locations

Mayo Clinic in Rochester

Rochester, Minnesota, 55905, United States

More trials for these conditions

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