Can short bursts of intense exercise help heart failure patients?
NCT ID NCT04248894
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether high-intensity interval training (short bursts of hard exercise) is better than moderate continuous exercise for people with heart failure. Researchers measured nerve activity, blood vessel function, and muscle health in 35 participants. The goal was to see which type of exercise improves the body's ability to control blood flow and daily function.
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 (high-intensity interval training and moderate-intensity continuous training)
What this could lead to
If HIIT proves better, it could offer a more effective exercise program to improve daily function and quality of life for people with heart failure.
What could go wrong
This is a small, completed study with only 35 participants, so results may not apply to all heart failure patients. Exercise programs also require careful supervision to avoid risks.
Disclaimer
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This is a summary of
the original study
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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.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Heart Institute
São Paulo, Cerqueira Cesar, Brazil
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Heart Institute (InCor)
São Paulo, São Paulo, 05403-900, Brazil