BUNNELL, Fla. — Flagler County School Board members voted Wednesday to make ECGs mandatory for high school student-athletes. An electrocardiogram (ECG or EKG) is a quick screening of the heart ...

Objective: Precordial ECGs reveal significant intrasubject variability due to the inexact employment of the recommended V 1-V 6 chest landmarks. Also, as per the Einthoven law, the six limb leads ...