Thank you very much for your answer!.
I read your articles and listened your podcasts (while running!), and they have been a lot of help for me to replan my trainings!. I have also buy your book, waiting anxiously its arrive!!. Very happy to learn from you and improve my mountain running!.
I followed your advice, and make the test again, at a higher HR (avg 144). The Pa:Hr ratio was not negative this time (0,5%), but under 3,5/5,0 range:
So, I try it again, targeting 5 bpm higher, and it results in a HR avg of 148 and a Pa:Hr ratio of 2,9:
So I thing my AeT is around 148/150…
I also made the AnT Test, and it results a HR of 171:
So, I think that the spread between AeT and AnT will be between 12-13%, so I have the ADS you described… I will train mostly in my new Z1 and Z2 as you recommend to improve my aerobic base!!
Thank you very much again!!
Regards from Salta, at the north of Argentina!