Effectiveness of Low -Versus High -Volume High -Intensity Interval Training in Patients With Chronic Heart Failure

Other illness

• Based on the Scientific Statement from the American Heart Association: contraindications for exercise Testing and Training. (Fletcher et al., 2013)
  • Acute myocardial infarction (MI), within 2 days
  • Ongoing unstable angina
  • Uncontrolled cardiac tachy or brady arrhythmia with hemodynamic compromise
  • Active endocarditis
  • Symptomatic severe aortic stenosis
  • Decompensated heart failure
  • Acute pulmonary embolism, pulmonary infarction, or deep vein thrombosis
  • Acute myocarditis or pericarditis
  • Acute aortic dissection
  • Physical disability that precludes safe and adequate testing or training
  • Known obstructive left main coronary artery stenosis
  • Hypertrophic obstructive cardiomyopathy with severe resting gradient
  • Recent stroke or transient ischemic attack
  • Mental impairment with limited ability to cooperate
  • Resting hypertension with systolic or diastolic blood pressures \>200/110 mmHg
  • Uncorrected medical conditions, such as significant anemia, important electrolyte imbalance, and hyperthyroidism
• Acute decompensated heart failure NYHA class IV

• Chronic stable heart failure patient with reduced ejection fraction (EF \<40)
• Age Above 18 years old
• Both males and females
• The ability to provide informed consent