I've read a few posts on similar topics, but I think my case is an extreme version of the problem and I'd like some advice as to the best way to fix it (and why Garmin's software doesn't estimate better...)
I've had my Forerunner 255 for more than a month now, and for that entire time it's been convinced that I've done precisely zero low aerobic activity - not "not enough", but exactly zero. (This includes exercises which it recommended to me in order to deal with the "low aerobic shortage" it diagnoses - if I do them and keep in the pace range it wants, they get counted as "Tempo" and contribute... to the high aerobic bar (and nothing to the low aerobic bar at all) ).
Now, I assume that this is because the software is hilariously badly estimating my max heart rate - at present, it thinks my max heart rate is 192 bpm, and it's tweaked it up by one or two bpm since I had the watch....
...but with this max heart rate, apparently I've managed to spend an entire *hour* in Zone 5 [during a 13 km run] in the last week, which I am pretty sure shouldn't be physiologically possible - I can believe I was in Zone 4, because I was going pretty fast for me...
I know someone here is going to say "oh, but just measure your max heart rate properly"... but the core question I have is - why is the software on Garmin's end incapable of recognising that it can't have the correct value for my max HR if I can maintain close to it for 58 minutes?
