I’m an oldish, constantly re-booting noob, but it seems like your Z2 top should be AeT, so 166, not 168. The other instruction I’ve read here is to see how close your AeT is to your AnT (by %), and training at <Z1 (instead of <Z2) once that difference reaches 10% or less.
There are a couple of ways to calc this, but they’ll all be close enough, as I understand it. So 194/166 = 1.17, meaning that your AeT is about 17% lower. (Or off of max HR: 194/207 = 94%, 166/207 = 80%, 94-80 = 14% difference. Or 166/194 = 86%, 1-.86 = 14%.)
So my understanding is that you can move most or all of your Z1 training to Z2 until this difference gets to ~10%, paying close attention to whether you can recover from it by the next day. (If not, it was too hard and may not have been <AeT, at least for that day. The guideline is that at ~10% is when Z2 starts to become too hard for that recovery, so the “<AeT” workouts should go to Z1, not Z2, but go by your own feelings the next day.)
Sorry for this simple explanation if you know all this already! The other stuff, I don’t know what to say.
This might be of interest:
Interpreting lab data – CHO vs Fat
along with this:
Interpreting lab data – CHO vs Fat
(which has a nice jpg with a bunch of different HR Zone methods summarized to help see what “Z3” is based on %s, which is here:
https://uphillathlete.com/wp-content/uploads/2018/06/HR-table.jpg ).
There are other explanatory posts if you search for HR zones in the forum, including one by Scott Semple that was very helpful with, I think, a followup by Scott Johnston (that I couldn’t find on first pass).
—Also! Given your experience, do you know what might be the easiest or most efficient way to do a “weekend Wind River trip” if I had to fly in from out of state (to enter, say, at Big Sandy)? (Or maybe you mean you are driving in when you do your Teton/Wind River trips you mentioned?) Thanks for any tips, and best wishes for a good summer season!
René
