An electrocardiogram (ECG) or EKG, performed at rest is a non-invasive procedure that measures the electrical activity of the heart. It involves placing small adhesive electrodes on the chest, arms, and legs to detect the tiny heart signals produced by the heartbeat. These signals are then amplified and recorded on a graph paper or digital display.

An electrocardiogram during resting is a fundamental tool used to establish a baseline for an individual's heart function. This non-invasive procedure analyses the electrical activity of the myocardium as it performs its cycle, producing a visual representation known as an EKG. During a resting ECG, the patient is in a comfortable position while el