I’ve had a similar issue lately, as I return to running. Some of it may be a drain clogging issue. I can feel that happening and slow down.
Some if it seems like a device issue. For instance, my TP data for a run a few days ago shows HR reaching over 200 bpm shortly after I started. I’m a 57-y.o. man, with a long history of training. And there’s no way that was actually my HR. I’d be dead. Similarly, when stopped, I watched my HR rise to 167 bpm, which is Z5. I wasn’t breathing hard, and my carotid pulse was nowhere near 3x/sec. IOW, the HR is decoupled from effort.
My HR locks into the 130s – below my AeT – after about 15 minutes of a warmup walk, slow jog, and then steady effort at a pace I know is easy. It varies appropriately with terrain and effort. Until I pull off a shirt, and then it all spikes again.
I’d basically ignore it, except it effs up my TP data – showing Z5 and max HR that aren’t real.
I wish I could figure out what the issue is. It doesn’t happen with other activities – ski touring, biking, hiking.
Anyone have similar issues? Suunto ANT chest monitor w Ambit2.
