Originally Posted by mecompco
I know Mike has done it, but he's a little fella ;-)
I have a copy--I watched about 10 minutes of the first disk--even a couple hundred pounds lighter now I can't do it.
Back when I was 400+, no freaking way. Perhaps you're in better shape than I was, but walking 50ft. was about the extent of what I could manage w/o gasping for breath.
I would really suggest walking as a good way to start out. Perhaps some lifting if you have the equipment available. Whatever you do, go slow and don't hurt yourself.
It's very difficult and will push you to the limit. I would recommend finding another way to get weight down first.