Inclusion Criteria:  Male / female, 45-85a Ischemic cardiomyopathy with mildly reduced ejection fraction (40 -50%) Coronary heart disease  Exclusion Criteria:  Acute coronary syndrome, myocarditis or pericarditis in the last 3 months Cardiac decompensation in the last 3 months Severe symptomatic heart failure NYHA IV (New York Heart Association) Device - carrier (ICD= Intracardial Defibrillator, CRT= Cardiac Resynchronization Therapy, PM=Pacemaker) Hemodynamically significant valvular disease Symptomatic cardiac arrhythmia Intractable, uncontrolled hypertension (repetitive blood pressure > 150/100) Severe comorbidities, which lead to study exclusion by the investigator Pregnancy / nursing