Thanks Scott,
yes it make sense now! My brain is a bit hard wired to the “classic” 5Z system. Now i slowly get it :)!
I will do a Lab test in the future. But right now i still get my body used to the volume i want (Injury this Feb. several stressfractures in my hip. Long time off from running and now slowly ramping up my volume).
Last year i ran a bit over 700h with 314,605m vert and 6,649.38 km. Then in the winter i made a dumb failure (not decreasing volume and paied enough attention to my recovery).
If i’m feeling good next week i will redo the AeT Test. Slowly i think i need todo more Workouts in Z1.
have a great day all — mirko