Have you completed an AeT test? If not, I would do that and use AeT as the marker for much of your training. There’s going to be variability in HR to a certain degree but in time you’ll be able to match perceived effort to HR almost without looking at your watch. This is useful too because I’ve had runs where my monitor reported 155 or so when I was running at an easy recovery pace and 155 is about my AnT. I even checked my pulse the old fashioned way against a second timer.These devices aren’t perfect.
Is it better to train off of respiration ease (run with mouth closed) or by heart rate? The reason I ask is that my pace/respiration seems to be very different at a given heart rate, depending on the day. Some days I feel out of breath at a heart rate of 140, and other days I seem to be able to run at 155+ and leave my mouth totally closed. I am using a chest-strap heart rate sensor, so I don’t think it’s a matter of the sensor being wacky.
So, is it better to do zone 2 runs at a particular (individualized) heart rate, or by ease of breath? Which one estimates the AeT effort better? Thoughts?
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