Cardiac output: is the volume of blood being pumped by the heart in one minute.
Cardiac output = Stroke Volume × Heart rate.
Cardiac output is usually expressed in liters/minute.
Cardiac output is changed by change of heart rate and stroke volume.
This videos goes through the details involved in determining cardiac output. It goes into the cardiac output formula, showing how strove volume and heart rate are involved in determining cardiac output.It also deals with what happens to cardiac output during exercise and after training for long periods of time.