Breathing muscle training may boost heart failure recovery
NCT ID NCT07688863
First seen Jul 07, 2026 · Last updated Jul 08, 2026 · Updated 1 time
Summary
This study tests whether strengthening the muscles used for breathing can improve exercise capacity, heart function, and quality of life in people with chronic heart failure. Participants with reduced or mildly reduced heart pumping ability will be randomly assigned to one of two types of breathing muscle trainers or a low-intensity sham device. Over 8 weeks, researchers will measure changes in breathing strength, oxygen use during exercise, and daily well-being to see which approach works best.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Inspiratory muscle training devices (mechanical pressure-threshold and electronic flow-resistive)
- What this could lead to
- If effective, this training could become a standard part of cardiac rehab to help heart failure patients breathe easier, exercise more, and feel better day-to-day.
- What could go wrong
- This is a small, early-stage study (60 people) comparing device types. The sham group still does low-intensity breathing, so the real benefit over minimal training may be modest. Results may not apply to all heart failure patients.
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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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Universidad Andrés Bello, Campus Viña del Mar
Viña del Mar, Valparaiso, 2520000, Chile
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