Answer:
The Maximum heart rate (FCM) or (MHR) is the maximum beats per minute a heart can get to when the person is engaged in physical activity.
It can be calculated by the formula:
= 220 - Age
= 220 - 23
= 197 beats per minute
At 50%, MHR is:
= 50% * 197
= 98.5
= 99 beats per minute
At 60%, MHR is:
= 60% * 197
= 118 beats per minute