Simple breathing workout may ease strain on heart in lung condition

NCT ID NCT06931886

ENROLLING_BY_INVITATION Symptom relief Sponsor: University of Arizona Source: ClinicalTrials.gov ↗

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

Summary

This study tests whether six weeks of daily breathing exercises against resistance can improve heart and lung function in people with pulmonary hypertension. Four participants will do 30 resisted breaths per day, five days a week. Researchers will measure changes in heart pressure, blood flow, and exercise capacity using tests already scheduled as part of routine care.

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 strength training (breathing exercises against resistance)
What this could lead to: If it works, this could point toward a simple, drug-free way to improve exercise tolerance and heart function in people with pulmonary hypertension.
What could go wrong: This is a very small pilot study with only 4 participants, so results may not apply to everyone. The training is short (6 weeks) and may not produce lasting benefits.

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.

pulmonary hypertension

As listed by the trial registrant

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

PULMONARY HYPERTENSION

Contacts and locations

Locations

University of Arizona

Tucson, Arizona, 85711, United States

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