👉 A tachogram, also known as a tachograph or an electrocardiogram (EKG), is a graphical representation of a person's heart rate and rhythm. It shows how many times the heart beats per minute during each heartbeat. The tachogram typically shows three sections: the upper part representing the ventricular systole (long, rapid heart beat) period, the middle section showing the ventricular diastole (short, slow heart beat), and the lower part showing the
