A normal ECG contains waves, intervals ... The waves on an ECG include the P wave, Q wave, R wave, S wave, T wave and U wave. Interval: The time between two specific ECG events.

as not all ECG leads contain all three of these waves; yet a “QRS complex” is said to be present regardless. For example, the normal QRS complex in lead V1 does not contain a Q wave — only a ...

The goal of ECG interpretation in athletes is to classify the ECG as: (1) ‘normal’—no further evaluation needed or (2 ... These include findings suggestive of cardiomyopathy such as T-wave inversion, ...