Related Experiment Video
Updated: Aug 26, 2026

Real-Time Electrocardiogram Monitoring During Treadmill Training in Mice
Published on: May 5, 2022
Matters of the athletic heart
1ING RE, 901 Chestnut Hills Parkway, Fort Wayne, IN 46814 USA. cliff.titcomb@ing-re.com
Abstract:
Frequently an underwriter or medical director will question whether an increase in left ventricular mass represents pathologic left ventricular hypertrophy (LVH) or physiologic changes related to exercise. The LVH condition reflects end-organ damage related to abnormal hemodynamic stresses and confers an increased morbidity and mortality risk. When left ventricular mass is increased because of exercise, measured changes represent a normal, healthy cardiovascular system responding to the demands of that exercise. This article summarizes medical findings that distinguish pathologic LVH from an "athletic heart."
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