Please select the eligibility criteria that correspond to the clinical trial below.
Title: Heart Failure Adherence and Retention Trial (HART)
Brief Summary: This study will test whether a self-management (SM) intervention, compared to usual care, will reduce the risk for adverse clinical outcome in patients with mild to moderate heart failure.


Options:
A: Inclusion Criteria:

* Diagnosis of chronic HF
* Percentage of blood pumped from the left ventricle (ventricular ejection fraction) less than 40% for at least 1 year prior to study entry
* Stable medical regimen, defined as no major changes in medication, in the 3 months prior to study entry
* New York Heart Association Classification of Class I (no activity limitations), Class II (slight activity limitations), or Class III (marked activity limitations)
* English-speaking

Exclusion Criteria:

* Unstable angina, myocardial infarction, cardiac resynchronization, or major cardiac surgery within 3 months prior to study entry
* History of cardiac arrest or diagnosis of peripartum cardiomyopathy within 6 months prior to study entry
* Unstable ventricular arrhythmias or structural valvular disease
* Current participation in a conventional cardiac rehabilitation program
* Inability to perform a bicycle stress test at study entry
* Lower extremity amputation or other inability to walk due to conditions other than HF
* Severe cognitive dysfunction preventing informed consent and understanding of tai chi concept
* Current regular practice of tai chi
* Current participation in a tai chi pilot study or other studies
B: Inclusion Criteria:

* NYHA classification of II or III
* LVEF of 40% or less

Exclusion Criteria:

* Uncertain 12-month prognosis
* Potential cardiac transplant within 1 year of study entry
* Severe aortic stenosis
* Uncontrolled ventricular tachycardia
* Non-cardiac causes of heart failure symptoms (i.e., peripheral vascular disease, chronic obstructive pulmonary disease, and arthritis)
* Major psychiatric co-morbidity
* Unstable angina, myocardial infarction, coronary artery bypass graft, or percutaneous transluminal coronary angioplasty within 1 month prior to study entry
C: Inclusion Criteria:

* Diagnosed with HF (NYHA I-IV) (independent of Ejection Fraction: both patients with a preserved ejection fraction (HFPEF) or reduced ejection fraction (HFREF) can be included)
* Older than 18 years, there is no upper age limit
* Speak/understand the language of the country where the intervention is taken place

Exclusion Criteria:

* The patient is expected to be unable to use the Nintendo Wii due to visual (see a TV screen at a distance of 3 m) cognitive (assessed by the HF nurse or cardiologist) or motor impairment (the patient should be able to swing his arm at least 10 times in a row)
* The patient has restrictions that would them unable patients to fill in data collection material
* The patient has a life expectancy shorter than 6 months
D: Inclusion Criteria:

1. Diagnosis of heart failure with reduced ejection fraction (left ventricular ejection fraction \<40%) with New York Heart Association (NYHA) class II or III symptoms.
2. Physically inactive, as determined by a question "As a rule, do you do at least half an hour of moderate or vigorous exercise (such as walking or a sport) on five or more days of the week?".

Exclusion Criteria:

1. Signs and symptoms of decompensated heart failure, uncontrolled arrhythmia or effort angina, severe or symptomatic aortic stenosis, persistent hypotension, recent shocks delivered by the automated implantable cardioverter defibrillator.
2. Co-morbid conditions that would affect adherence to trial procedures (e.g. inflammatory arthritis, active malignancy, renal disease requiring dialysis, uncontrolled diabetes, major depression or other significant psychiatric disorders, cognitive impairment, significant hearing or visual impairment).
3. Major surgery planned within the next 12 months.
4. Life expectancy shorter than 12 months.
5. Inability to walk from any reason.
6. Baseline six-minute walking distance \>450 meters. Patients covering more than 450 meters in the baseline six-minute walk test (6MWT) are excluded due to a possible ceiling effect.
7. Pregnancy.
8. Failure to perform the 6MWT.

Answer: B