Originally Posted by Gina in NY

Actually, she did say that it is more like cardio for your muscles. And she's bringing her bosu ball. That is the half ball thing that sits on the floor. I don't think it will be more cardio - I can't do much more! (An hour on the eliptical two or three times a week, plus the warm ups is plenty for me - and thank god for the I-pod or I'd never make it!)

I've also seen her do upper body stuff while standing on one foot - trains tons of involuntary muslces. She said something about stabilizing muscles...

The long and short of it is, I think...This is going to hurt.