I am having the same issue too. I’ve been focusing on own RPE and not my HR monitor. This way I feel like I’m not going crazy.
On todays run I made an interesting discovery;
I just recently bought a new chest strap, since I lost my previous one.
Before todays mountainrun I licked the electrodes to get them wet (i dont always do that) and immediately I noticed my heart rate was around 4-6 beats higher than normal, even though I was well rested and felt great. The heart rate readings just seemed higher for the same aerobic pace I was normally running.
After 40 min or so, the HR readings went down 3-4 bpm, even though I still maintained the same pace and intensity. Now everything seemed to be in order again for the next 50 min, the intensity that i felt matched the HR readings like normal.
Then I took off my strap to check the elecrodes; they were slightly moist.(it was a warm day) I still gave them another lick, put the strap back on, and ta-da, my HR went up like 4-6 bpm, like at the start, even though I maintained the same intensity.
Now I’m actually quite concerned that in the last couple of months all those HR readings were actually 5 or 6 bpm higher than I thought, which would mean I spent hundreds of hours training just above AeT, not just below it.Which is also weird, I recover very well from my supposed base trainings (i train around 14-15 hours per week)And my aerobic pace usually does feel pretty easy (conversational pace)
What do you guys think about that? Is it common for chest straps to be this inaccurate when their not wet?
Another thing, if I train 2-3 bpm just above my AeT does my aerobic system not benefit from that anymore? It feels hardly any different than my AeT pace.
Hopefully I can get some insight from you guys 🙂
Greetings from Switzerland
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