Myocardial Performance during Progressive Exercise in Athletic Adolescent Males.

The article presents a study that compares cardiovascular responses to progressive cycle exercise in 12 adolescent soccer players and 10 untrained boys with assessment of ventricular inotropic and relaxation properties by Doppler ultrasound techniques. The study revealed no differences between young trained athletes and nonathletes in myocardial functional responses to progressive exercise which means that greater aerobic fitness in trained athletes reflected volume expansion of the cardiovascular system without contribution of enhanced systolic ventricular function. The study notes that this finding should be considered limited to young athletes with limited duration of athletic training.