I've just started training sessions that require me to spend, so far, up to 10 minutes in HR Z5a. My first of such sessions I was there for a decent amount of time, but I didn't get nearly as much time there as my last two sessions and it's disappointing to be close but not hit the target.
I get to about Z4.8 where my effort seems to settle in or stick. It's not because of fatigue.
I know the advice is to push it and break through to get to the target. But I'm wondering how others set themselves up on the trainer, or outdoors, to be in a place mentally or physically where they can do that. The burning makes it feel like I'm pushing limits at the time, but its obvious that I'm not. Looking for any advice to make these sessions as productive as possible. It might just come down to learning how to suck it up and go apesht to just get it done.