Outcome=effort: All exercise programs are only as good as the effort and persistence you put it. That said, few if any have been tested in fda type trials. Many of these video programs are too hard if you haven't been working out and pain, stiffness and fatigue stops you as soon as you start. Talk with your doctor and consider a session or a few w a personal trainer to ensure the right program for you.
Answered 4/9/2013
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