Forgive me if this is a silly question, or if this topic has already been discussed in other thread (I tried to search but after 30 min, I figured it was time to post my question).
I’ve haven’t had an opportunity to complete a heart rate drift test yet so I have been trying to gauge my AeT using ventilatory markers (nose breathing and conversations) while on my runs and hikes. I noticed that on flat runs, I can breath through my nose easily and speak short sentences around 150-155 bpm or less. However, on uphill hikes, I can only do the same at around 120 bpm or less.
I’m curious why there is such a big difference between the two activities – is it mostly due to the uphill nature of hiking?
Is this difference normal? Is it indicative of anything that I should consider?
For my training, I plan to do a combination of running (~1hr as my schedule allows) and some uphill hiking (as schedule and weather allows). What heart rate zones should I be training in for each activity, given the large difference between the two?