Originally Posted by downhillmaster

I can’t speak to the science you reference in your post but I believe your marathon runner analogy is incorrect, if it makes any difference.
I did a lot of running when I was younger and heard the phrase ‘hitting the wall’ quite often and it always referred to simply running completely out of energy during a run.
But it never referred to the other symptoms I have heard when someone references bonking.
When you hit the wall running you didn’t experience things such as dizziness, disorientation, or anything that would be considered a medical issue.
You simply could not make your legs move one bit faster.
It only happened to me a couple times while racing and it was a bit embarrassing as I knew in my case it had been caused by me going too hard in the early stages of the race.