Hi Scott,
Following this thread and trying to figure the upper limit for my AeT.
Did a test the other day. Treadmill 10% grade and after 18min warm-up I started the test with HR at 168bpm (based on previous season/test).
The first 30min avg HR 173 and second 30min HR 176, a drift of 1,7%.
Link to WO on TP http://tpks.ws/RZFS5L3RDFE5GOLTRYLFWF2GAU
Based on above discussion and with a drift of 1,7% I guess the upper limit of my AeT is above 173? Would love to hear your thoughts and to have an educated guess
Thank you for a great resource.