Cardiac workload

Cardiac workload, also known as myocardial workload, measures how much stress is put on the heart muscle. It is calculated with the following equation:
Heart rate (bpm) x Systolic Blood Pressure (mmHg)
Cardiac workload can be categorized in the following ways:
Significantly below average: 0 to < 3.80
Below average: 3.8 to < 3.9
Average: 3.9 to < 4.08
Above average: 4.08 to 4.18
Significantly above average: 4.18 to <4.28
Taking a cardiac workload measurement at rest can be indicative of cardiovascular health. A person who is regularly active, for example, will typically have a lower cardiac workload versus someone who is sedentary. Cardiac workload can also increase transiently during exercise; however, it should decrease after stopping physical activity.
Thus, we can use cardiac workload to monitor the health of the cardiovascular system but also to help us tailor fitness training and monitor recovery.