Maximum Heart Rate

Posted By Rob on November 25, 1998 at 11:54:35:







After having a bypass with no heart attack, I have started an exercise program.  
1. What is my optimal target heart rate for exercising? I am 52 years old, plus exercise aerobically for 30 minutes per day. Please comment on these calculations.
I have read that one method determining maximum heart rate is:
for sedentary individuals is 220-age, and for those who exercise aerobically- the formula is 206-(one half of age.) The literature suggests 65%-75% of maximum is the target heart rate.
Using the first equation - my THR would be 134, and using the second, my THR would be 116 using 65%.  I am confused why your THR might be lower if you regularly exercise.
2. Can you improve the heart and rehabilitation by going to 75% or is 65% adequate? At what point are you risking yourself?
3. What is the benefit to the heart by exercising at THR versus, just exercise like walking at a moderate pace.

[hitting3]

A related discussion, treadmill heart rate with atenolol was started.