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Updated: Sep 9, 2025
09:20
Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
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Isometric exercise training in patients with heart failure with preserved ejection fraction: a randomized controlled
Jamie J Edwards1,2, Navazh Jalaludeen3,4, Nesan Shanmugam1
1Department of Cardiology, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, Tooting, London, UK.
European Journal of Preventive Cardiology
|August 28, 2025
Summary
Isometric exercise training (IET) is a feasible and safe intervention for heart failure with preserved ejection fraction (HFpEF). This 4-week program improved blood pressure, cardiac function, and quality of life in HFpEF patients.
Area of Science:
- Cardiology
- Exercise Physiology
- Clinical Medicine
Background:
- Heart failure with preserved ejection fraction (HFpEF) presents significant challenges due to limited treatment options and high mortality.
- Innovative therapeutic strategies are crucial for improving outcomes in HFpEF patients.
- Isometric exercise training (IET) is known for its cardiovascular benefits, but its application in HFpEF remains unexplored.
Purpose of the Study:
- To assess the feasibility of a 4-week isometric exercise training (IET) program in patients with heart failure with preserved ejection fraction (HFpEF).
- To explore the safety and efficacy of IET by examining cardiovascular parameters and patient-reported outcomes in HFpEF.
Main Methods:
- A randomized controlled trial involving 38 medically optimized HFpEF participants assigned to either a 4-week IET intervention or usual care.
- Measurements included resting hemodynamics, cardiac function (assessed via 2D speckle tracking echocardiography for Global Longitudinal Strain and Left Atrial Reservoir Strain), and patient-reported outcomes (Kansas City Cardiomyopathy Questionnaire-12).
Main Results:
- The IET group showed significant reductions in resting systolic, mean, and diastolic blood pressure, alongside decreased total peripheral resistance compared to the usual care group.
- Improvements were noted in Global Longitudinal Strain (GLS) and Left Atrial Reservoir Strain (LAr), indicating enhanced cardiac function.
- Patients in the IET group reported significant improvements in the physical limitation subscale of the Kansas City Cardiomyopathy Questionnaire (KCCQ-12).
Conclusions:
- Isometric exercise training (IET) is a feasible, safe, and effective therapeutic intervention for patients diagnosed with heart failure with preserved ejection fraction (HFpEF).
- IET demonstrates potential for improving cardiovascular health and quality of life in the HFpEF population.
- Further large-scale, multi-center studies are warranted to confirm these findings and evaluate the long-term safety and broader applicability of IET in HFpEF management.
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