Exercise Activity Intervention With Sensor-Based Engagement in Patients With Atrial Fibrillation

This study is testing whether a structured exercise program using wearable sensors (like a Fitbit) can reduce symptoms and improve outcomes in people with paroxysmal atrial fibrillation — a type of irregular heart rhythm that comes and goes. The program aims to help participants gradually increase their activity levels. **You may be eligible if...** - You are 40 years or older - You have paroxysmal (episodic) atrial fibrillation confirmed by an ECG or similar test within the past year - Your AF symptoms are in a moderate range on a symptom scale - You currently do 30–120 minutes of moderate-to-vigorous exercise per week **You may NOT be eligible if...** - You have had an AF ablation, heart procedure, or heart failure hospitalization in the last 90 days - Your heart pumping function is reduced, or you have significant valve disease or an implanted pacemaker/defibrillator - You have severe lung, liver, or kidney disease - You have musculoskeletal, neurological, or vascular conditions that limit exercise - Your actual measured exercise level is much higher than reported (over 180 min/week) Talk to your doctor to see if this trial is right for you.