This is fantastic information! Scott, I was hoping to ask a follow-up question regarding aerobic training by pace. I recently got access to a treadmill and would like to shift to training by pace rather than HR for some of my aerobic runs. I am looking for clarity on the whole issue of drift.
Keeping pace the same, we know the HR is going to drift upwards. When I run by HR, I have to slow down as the run gets longer to account for the drift to make sure that I am staying below AeT HR. It seems to me that doing an AeT run (say 2 hours) at a specific pace on the treadmill would result in my HR being above my calculated AeT HR for at least a portion of the run. Is this OK? Or is AeT pace specifically set somewhere below the HR threshold to account for drift?
I apologize if this has been asked before, but I haven’t been able to find a lot of information on calculating an AeT pace either here on the forums or in TftUA.
Thanks for any guidance/tips/resources you can provide!