The muscles haven’t yet learned.
I hope people realize that, it’s almost impossible to do that, unless one has no muscles at all.
I can’t even imagine how someone can’t sit on one of these.
I use one at my computer instead of a chair.
I do sit-ups on a ball like that at the gym. Once, it slid out from under me as I started to get up. Unlike Bud, I ended up sitting on the floor. Since then, I’ve been a lot more careful.
Hunter7 almost 11 years ago
The muscles haven’t yet learned.
Editman almost 11 years ago
I hope people realize that, it’s almost impossible to do that, unless one has no muscles at all.
ossiningaling almost 11 years ago
I can’t even imagine how someone can’t sit on one of these.
sbwertz almost 11 years ago
I use one at my computer instead of a chair.
JoePhan almost 11 years ago
I do sit-ups on a ball like that at the gym. Once, it slid out from under me as I started to get up. Unlike Bud, I ended up sitting on the floor. Since then, I’ve been a lot more careful.