Originally Posted by
John E
From the Mayo Clinic (note the incorporation of resting heart rate in the calculation):
If you're aiming for a target heart rate in the vigorous range of 70% to 85%, you can use the heart rate reserve (HRR) method to calculate it like this:
Subtract your age from 220 to get your maximum heart rate...
Except that their method is totally flawed because it uses the bogus 220 - age formula to set the upper limit. This will result in most older people training at a HR that is not in the vigorous range as advertised. That's the whole problem with the bogus formula...it makes people think that they are at a higher training level than they actually are.