Related Experiment Video
Updated: Aug 15, 2026

Autonomic Function Following Concussion in Youth Athletes: An Exploration of Heart Rate Variability Using 24-hour Recording Methodology
Published on: September 21, 2018
Causes of sudden death in athletes
1Department of Cardiovascular Pathology, Armed Forces Institute of Pathology, Washington, DC.
Abstract:
The incidence of sudden death in athletes is low. Some pathologic conditions, such as hypertrophic cardiomyopathy, coronary artery anomalies, and right ventricular dysplasia may predispose to sudden death during exercise in young athletes. In older individuals, exercise may trigger terminal arrhythmias in patients with atherosclerosis. Screening programs for young individuals undertaking athletic regimens are currently recommended only for those with a suggestive clinical or family history. For older individuals, caution should be advised for patients with known or suspected atherosclerotic disease.
Related Concept Videos
Muscle Recovery and Fatigue
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be met...
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Coronary Artery Disease III: Clinical Manifestations
Dysrhythmias II: Classification of Tachyarrhythmias
Introduction Cardiac Emergencies

