The ability to identify an abnormality on the 12-lead ECG, suggestive of underlying cardiac ... 6,11 Heart rates ≥30 beats/min are considered normal in highly trained athletes. Sinus arrhythmia is ...

To understand the difference between normal sinus rhythm and sinus arrhythmia, it's best to start by exploring the role of an ...

One can either use calculated sums of the amplitudes of QRS complexes of all 12 leads ... that the use of the ECG along these lines in the care of patients with CHF will lead to further progress.

Methods Physicians were asked to interpret 40 ECGs (28 normal ECGs from college athletes randomised with 12 abnormal ECGs ... and demonstrated common ECG changes consistent with physiological ...