What does your HRmax mean?
HRmax is used in stress testing to uncover cardiovascular disease, and is a common means of denoting intensity for endurance training.
Find your exact HRmax
There is significant variation within age groups (±11 beats/min), so we recommend that you test yourself to find your exact HRmax.
Use your HRmax for 4x4 interval training
During intervals, your heart rate should be at 90-95% of HRmax, and during active rest it should be at approx.. 70%