THR = (maximal HR* - resting HR**) * Intensity % + Resting HR *Maximal HR = 220 - age
** Resting HR = count your pulse at rest for 60 seconds
Your age is:15
Your Resting HR is:70
Step 11
220 - 70 (your age) = 15 (estimated maximal heart rate MHR)
Step 2
(MHR) - (Resting HR) = (Heart Rate Reserve)
Step 3
(Heart Rate Reserve) x .60 (lower intensity) =
Step 4
(Resting HR) =
(Resting HR) =
(Heart Rate Reserve) x 80 (higher intensity) =
Result
to
Your target heart rate zone is
beats per minute.