[Brian Bauer]

couple of things:

1. your warmup was N/A in your last test? why? did you skip the warmup? if I skipped the warmup my drift test would be completely invalid.  when I do a 60 AeT drift test on a treadmill, I warmup for at least 20 mins. I start off jogging and work up to my target AeT test HR. I want to be at the target HR for at least 5-8 minutes before the 60 min test starts.

eg. my AeT based on drift tests is around 158 .  with a proper warmup I can run 60 minutes and be within 2-3 bpm of that 158 target

FYI. – 2 years ago my ADS was so bad I could not run in Z1. I had to run/walk.  I had done that to myself with way too much anaerobic training.  after getting my Evoke coach, he had me doing high volume Z1 work for a full year.  because of that my AeT went from 130 to 158…and it was only then tat I could reliably nail a drift test