An increase in R wave progression suggests what?

An increase in R wave progression across the precordial leads indicates that there is effective electrical activity and conduction from the heart's ventricles. In a healthy individual, R wave progression tends to be more pronounced, showing a typical pattern as you move from lead V1 to lead V6. This pattern reflects normal myocardial mass and function, particularly of the left ventricle.

Normal R wave progression means the electrical signals originating from the heart are being effectively transmitted through the myocardium, providing evidence that the left ventricle is functioning optimally without any significant hypertrophy or structural abnormalities. In contrast, deviations from this pattern can suggest issues such as hypertrophy or other cardiac dysfunctions, which are not indicated when R wave progression is increasing.

Therefore, the observation of increased R wave progression is associated with normal left ventricular mass and function, confirming the heart is performing as expected in that aspect.