Yesterday I attended my first pilates class since xmas (and could feel it!) and then went on a 30mins easy run. I also admit to prob. not hydrating enough after the class. What I noted was that my HR was well above where I’d expect for an easy run (160 rather than 140) but using ZoneSense I was able to confirm the easy run was indeed still easy on my body because it still showed I was working aerobically despite the higher HR 🙂
I assume what I experienced here was basically a form of aerobic decoupling where dehydration and an hour of previous activity pushed my HR up rather than it rising due to increased effort. This is a recognised problem with zone 2 HR training and longer runs and it’s cool that ZoneSense appears to be ‘immune’ to it - I assume because the R-R interval properties of the heart change with stress, not heart rate 🙂