Inclusion Criteria:  Patients who had experienced an acute myocardial infarction up to one year before to the enrolment in the study Patients who had experienced an angina pectoris up to one year before to the enrolment in the study Patients who had undergone revascularisation (percutaneous transluminal coronary angioplasty or coronary artery bypass grafting), up to one year before to the enrolment in the study Clinical diagnosis of coronary heart disease documented by angiography, up to one year before to the enrolment in the study  Exclusion Criteria:  Unstable angina Atrial fibrillation Cardiac implantable electronic devices Complex ventricular arrhythmias Uncontrolled hypertension Conditions limiting participation in exercise training Symptom-limited cardiopulmonary exercise test at PRE