A 18-year-old female asked:
Automatic atrial tachycardia with exercise? how do you differentiate from innapropriate sinus tachycardia? which would be more likely in an athlete?
1 doctor answer • 8 doctors weighed in
Cardiology - Cardiac Electrophysiology 33 years experience
Tachycardia: Inappropriate sinus tachycardia - elevated heart rate (HR) at rest > 100 sitting/standing. Athletes usually have a slow HR at rest. Atrial tachycardia/fibrillation/flutter with excessive HR more common in extreme athletes with exercise. Cause unclear - may be due to electrical changes from extreme endurance exercise to atrial electrical properties of the heart. More exercise not always better.
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588 viewsReviewed >2 years ago
Last updated Oct 23, 2017
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