Should ECG be required in young athletes?

摘要

Athletes' hearts are adapted to chronic exercise training that may result in physiological increases in left-ventricular volume, left-ventricular hypertrophy, increased left-atrial volume, and right-ventricular structural changes, with preserved systolic and diastolic ventricular function and exercise ability.12 The extent and variability of cardiac morphological changes in trained athletes varies with the type of exercise training, age, gender, environment, and body size. Genotype and different polymorphisms of the angiotensin-converting enzyme or angiotensinogen genes can result in different phenotypic expression in athletes' hearts.