Introduction
systolic dysfunction
ACUTE MYOCARDIAL INFARCTION, CONTRACTION, AMI, TORSION, SYSTOLIC DYSFUNCTION
The benefits of exercise after acute myocardial infarction (AMI) have been investigated for several years and most publications have demonstrated a better prognosis related to this practice.Benefits have been demonstrated in cases of AMI with greater impairment of LV contraction, causing moderate and severe systolic dysfunction (left ventricular ejection fraction [LVEF] ≤ 40% and ≤ 30%, respectively).Speckle tracking echocardiography (STE) can perform a comprehensive study of LV contraction mechanics, which is characterized by longitudinal apex-to-base shortening in association to segmental rotations and ventricular torsion.The present study aims to test the hypothesis that cardiovascular rehabilitation, promoted by a supervised exercise program, would have a positive impact on the mechanics of LV contraction in patients with uncomplicated AMI.