The ability to identify an abnormality on the 12-lead ECG, suggestive of underlying ... In fact, up to 60% of athletes demonstrate ECG changes (in isolation or in combination) such as sinus ...

This is not recognizable on the 12-lead ECG because the time that SA node fires is not able to be determined. The ECG may simply show sinus rhythm or sinus bradycardia. This is different than a ...

Methods Competitive rowers (n=330, 56% male) underwent standard 12-lead ECG at the time of collegiate ... Results 94% of rowers had one or more training-related ECG patterns including sinus ...