That is pretty cool. I think that is what fat chicks do when they get dressed in the morning. hehe :) I think I'll do those and see if it helps. How many are you suppose to do at a time anyway? Is it like the more the better or what?
Of course the more the better. As with any exercise, you need to do as many as you can, it's just that you can't just 'add weight'. You can do it isometrically (hold it in for as long as you can) or dynamically, or hold it in for a second or two every time. You should be able to do 60-100 the first time you try it. I do sets of it. As with any exercise, you've got to figure out what's right for you.