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

NCT ID NCT04555512

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.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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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.

Contacts and locations

Locations

  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905, United States