ID.1
Item
patients with chronic heart failure
boolean
ID.2
Item
age 30 to 70 years
boolean
ID.3
Item
functional class ii to iii of new york heart association
boolean
ID.4
Item
left ventricular ejection fraction (lvef) ≤40%
boolean
ID.5
Item
peak oxygen uptake (vo2) ≤20
boolean
ID.6
Item
recent myocardial infarction or unstable angina (<3 months)
boolean
ID.7
Item
heart failure duration (<3 months)
boolean
ID.8
Item
permanent pacemaker dependence
boolean
ID.9
Item
atrial fibrillation
boolean
ID.10
Item
skeletal muscle abnormality (e.g., arthritis)
boolean
ID.11
Item
participation in a regular exercise program
boolean