exercise-induced atrial fibrillation
Irregular heart rhythm triggered specifically by physical exertion in athletes.
Full Definition
Exercise-induced atrial fibrillation is an irregular heart rhythm that develops during or immediately after physical activity, particularly in endurance athletes. Unlike typical atrial fibrillation, this condition may be triggered by the combination of increased sympathetic nervous system activity, elevated heart rates, and structural adaptations from chronic training. The condition presents unique challenges in sports medicine as it can significantly impact athletic performance and requires careful evaluation to distinguish from other exercise-related arrhythmias. Management often involves activity modification and may require anticoagulation therapy depending on stroke risk stratification.
Usage
Usage note: Hyphenate the complete term; distinguish from general exercise-induced arrhythmias.
In Context
- "The marathon runner developed exercise-induced atrial fibrillation during the final miles of competition." — clinical case study
- "Screening protocols should include assessment for exercise-induced atrial fibrillation in master's athletes." — screening guidelines