“The formula you used [Heart Rate at AT = 0.6 (230-age in years) ] provides the ESTIMATED heart rate at anaerobic threshold…he ACTUAL threshold can only be determined by Cardiopulmonary Exercise Testing, which is expensive and not readily available. My advice to you is to keep up the walking and avoid prolonged periods of HR …
Fix the Underlying Condition Before You Exercise
“…it’s not that exercise is a bad thing, obviously you’re going to have to recondition, but before one can recondition you have to fix the underlying problem that makes exercise cause you to crash.” -Dr. Nancy Klimas, 2021