Natriuretic Brain Pro-peptid Changes in Patients With Chronic Heart Failure Within a Cardiac Rehabilitation Program

Natriuretic Brain Pro-peptid (Pro-BNP)Changes in Patients With Chronic Heart Failure Enroled in a Controlled, Supervised Exercise Protocol Within a Cardiac Rehabilitation Program

Evaluate pro-BNP levels, oxygen consumption, functional class, and quality of life in patients with chronic heart failure after participating in an exercise program and compare them baseline and 2 months, with another group who underwent an educational program.

Clinical controlled trial with a double blinded with a aleatory number sequence as the randomization method, patients will be assigned to one of two groups, intervention program (supervises exercise program) and control group (community based exercise)

Inclusion Criteria:

• Patients older than 18 years, diagnosed with heart failure (NYHA) II-IV for more than six months

Exclusion Criteria:

• patients with NYHA functional class I, who had attended a cardiac rehabilitation program previously, patients with decompensated diabetes mellitus, hypertension difficult to control, ischemic heart disease in the last month, prior pulmonary embolism, chronic obstructive pulmonary disease, restrictive lung disease , aortic stenosis, new episode of atrial fibrillation and musculoskeletal diseases that limit the performance of physical activity