Exercise Training Effect in Patients With HF and PEF

Inclusion Criteria: * Age \> 55 years (Interested in capturing mean ages close to age 65 as many HF initiatives are based on this age group and HF development increases with aging). * Diagnosis of HFPEF stable NYHA Stage II- III with an EF of ≥ 45% * Stabilized on cardiac medications and post hospitalization \> 4 weeks * Ability to participate in exercise testing and training. * Referral from Cardiologist or primary care physician. Exclusion Criteria: * Unstable Angina * Uncontrolled diabetes * Moderate to severe aortic stenosis * Uncontrolled hypertension Systolic BP\>150 mm Hg or Diastolic BP \>100 mm Hg * Valvular heart disease * Untreated coronary artery stenosis \>50% * Arrhythmias * Pulmonary disease/COPD * Dementia or cognitive impairment * VAD or Transplant planned in next 6 months. * Current or recent participation in a Cardiac Rehab program within the last six months.