Probably. But what are you training for? Downhill trotting, although HR falls, has a valuable strength effect if trail running or something similar is your main sport.
After doing two heart rate drift tests, I confirmed that I have ADS (an earlier nose breathing test steered me wrong). I know I have some quality Z2 time in my future over the next few months. 🙂
Question – I do a lot of training on hills and my heart rate drops out of Z2 (and occasionally Z1) on the downhill. The book recommendation is to count the time of the entire run as Z2. However, will I see faster improvement in my ADS if I switch to flatter ground for a majority of runs so I can get more hours per week in a true Z2 range? My goal for this base building period is to improve AeT as fast as possible.
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