Sep 25, 2011 #1 A aeiou_i New member Joined Aug 1, 2008 Messages 11 Reaction score 0 Points 1 I am 40 years old. How do I determine the pulse within which I should do a certain distance. Is it that I should not mind the time, distance or pace and worry only about staying in the safety zone of the pulse?
I am 40 years old. How do I determine the pulse within which I should do a certain distance. Is it that I should not mind the time, distance or pace and worry only about staying in the safety zone of the pulse?