I have a friend who is interested in doing some work to strengthen his abs. A couple sites on the internet, which APPEAR to be credible, recommend a large exercise ball as the best way to exercise the torso.
Just curious, have any of you tried working out with one of these devils? It sounds convincing. One question I have is how difficult it is - a lot of theoretically great exercise techniques only work if you are already in great shape, otherwise you just throw out your back. (I hate to bad-mouth anybody, but this friend of mine is kind of a fat slob.)
Just curious, have any of you tried working out with one of these devils? It sounds convincing. One question I have is how difficult it is - a lot of theoretically great exercise techniques only work if you are already in great shape, otherwise you just throw out your back. (I hate to bad-mouth anybody, but this friend of mine is kind of a fat slob.)

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