Mayo Clinic
The purpose of this study is to compare the impact of inspiratory muscle training (IMT) combined with cardiac rehabilitation (CR) on cardiovascular function in patients with heart failure.
Inclusion Criteria HFrEF Patients: (≥18 yrs) receiving guideline directed pharmacologic medical therapy for \>6 weeks (those with contraindications to medical therapy will meet inclusion criteria), NYHA symptoms I-III, no hospitalizations in the \>3 months, have a body mass index ≤45 kg/m2, currently be non-smokers with \<30 pack year history and be able to exercise (i.e. without significant orthopedic limitations or musculoskeletal disorders limiting their ability to exercise). Exclusion Criteria 1. sustained ventricular tachycardia and/or ventricular fibrillation within 21 days of visit 1…
The breathing training will consist of using the PowerBreathe for 12 weeks. The PowerBreathe is an inspiratory pressure threshold trainer. The valve blocks the airflow until the threshold pressure is achieved by breathing in forcefully into the device.
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