I spent about three months following the MAF 180 training plan, which was a success! Unfortunately, I have only done a few evaluations, but my average heart rate has dropped nicely as a result of regular low-heart rate exercise. Now I’m leveling up and switching to Zone 2 workouts. I try to put together my weekly exercise regime as follows: 5 minutes of gymnastics or warm-up every morning (this morning gymnastics is a miracle; I’ve been doing it since January) 3 yoga or mobility classes a week 4 hours of Zone 2 exercise (spread out over the week) in the form of indoor cycling, treadmill or trail running 1 or 2 HIIT workouts per week, occasionally 20-30 minutes, where I try to push myself to max heart rate at least 10 minutes of stretching after each workout For Zone 2 workouts, I calculate the heart rate range based on the LTHR (lactate threshold or lactic acid threshold) determined by the Garmin gadgets, which is the physical stress level at which the body’s production of lactate, or lactic acid, increases suddenly.