Comparing breathing exercises for heart failure patients

Therapeutic Effects of CardioBreath Aplication Versus Inspiratory Muscle Training (IMT) on Vagal Cardiac Modulation, Pulse Wave Velocity Maximal Respiratory Pressures in Heart Failure Patients: Cross-over Randomized Control Trial

Not applicable Interventional Instituto de Cardiologia do Rio Grande do Sul · NCT06139653

This study is testing a new breathing app called CardioBreath to see if it helps heart failure patients breathe better compared to traditional breathing exercises.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment40 (estimated)
Ages40 Years to 70 Years
SexAll
SponsorInstituto de Cardiologia do Rio Grande do Sul Academic / other
Locations1 site (Porto Alegre, Rio Grande Do Sul)
Trial IDNCT06139653 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of a new breathing app, CardioBreath, against traditional Inspiratory Muscle Training (IMT) in patients with congestive heart failure (CHF). It focuses on the impact of these breathing techniques on respiratory muscle strength, cardiac vagal modulation, arterial stiffness, and diaphragm thickness. The study will recruit post-discharge CHF patients and utilize a crossover randomized control design to compare the two interventions. Participants will be monitored using advanced cardiovascular assessment tools to measure various health outcomes.

Who should consider this trial

Good fit: Ideal candidates are adults aged 40 to 70 with reduced ejection fraction heart failure who have access to a mobile device.

Not a fit: Patients with active smoking habits, a BMI under 30, sleep apnea, congenital heart failure, or valve disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a novel, accessible method for improving respiratory and cardiovascular health in heart failure patients.

How similar studies have performed: Previous studies have shown positive outcomes with breathing exercises in heart failure management, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Consecutive CHF patients in treatment at the outpatient clinic (Institute of Cardiology)
* Of both sexes
* Aged between 40 and 70 years
* And ejection fraction (EF) reduced (\<40%)
* Who have access to a mobile device with access to Internet.

Exclusion Criteria:

* active smoking
* BMI \<30
* Diagnosis of sleep apnea
* Heart failure of congenital origin
* Valve disease.

Where this trial is running

Porto Alegre, Rio Grande Do Sul

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Congestive Heart Failure
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.