Definitions for "Maximum heart rate"
Keywords:  mhr, fastest, beat, attainable, heart
A heart rate of 220 beats per minute minus your age.
Your MHR is how fast your heart is capable of beating. It can be calculated by using the formula: 220 - age = maximum heart rate.
The fastest that your heart can beat when doing activity. Rather than actually measuring the peak rate that your heart can beat, it is easier to predict what that rate is. We can do this by using a simple formula: 220 – age = maximum heart rate.