My poor stomach muscles are very out of shape. I have an exercise plan that I'm doing every day but it's slow going. I was talking to someone at work who said they'd worn a support band to help 'retrain' the muscles after they'd been pregnant. I know it's not quite the same thing (mine are out of shape because I'm overweight) but i'm still wondering if it's worth a try. Has anyone used one and found it helpful?