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.
