220 Minus age: This is the standard formula. Subtract the age from 220. You cab easily push up to at least 80% of that target heart rate -- in this example 220-56 is 164 and 80% of that is 130 or so
Answered 10/4/2015
2.2k views
60-100: beats per minute is normal.
Answered 10/4/2015
2.2k views
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