The aim of this observational study is to determine the effect of seasonal changes on physical activity levels in heart failure patients with cardiac implantable electronic devices.

Patients with heart failure who have a cardiac implantable electronic device will be evaluated throughout the year.

Inclusion Criteria:

• Over 18 years of age,
• Have a diagnosis of heart failure due to ischemic or non-ischemic cardiomyopathy,
• Have a cardiac implantable electrical devices,
• Be in New York Heart Association (NYHA) Class I-II-III.

Exclusion Criteria:

• Being a New York Heart Association (NYHA) Class IV resident
• Not living within a 50-mile radius of a weather reporting station,
• Having documented conditions that limit ambulation, including wheelchair use, serious orthopedic problems, stroke and other neurological disorders, or amputation,
• Using a left ventricular assist device,
• Having a history of more than five hospitalizations for any reason,
• Having recently undergone major cardiovascular or orthopedic surgical procedures, including coronary artery bypass grafting, aortic aneurysm repair, joint replacement, amputation, or spinal surgery,
• Having a cognitive impairment that impairs cooperation with questionnaires or tests.

Patients with heart failure with cardiac implantable electrical devices