Fear of treadmills

by Morgan
(Florida)

When I was younger, I was running on a treadmill and my friend put it on full speed and suddenly i flew straight back, hitting the other treadmill right behind the one i was on.

That was years ago and I finally went on one just recently. I was timid about going on but decided to do it anyways. I put the speed half way and I immediately jumped on the sides of it..

I figured it was just an instinct to do that since the incident when I was younger. But I couldn't stay on the treadmill any longer because i kept thinking about flying off of it.

I tried to find the scientific name of this but couldn't =/