I have been using a standing vibration plate for about 5 years. I believe it has helped me stabilize my osteoporosis. This kind of machine was originally developed by the Russian space agency. When cosmonauts came back from long term space trips they had extremely low bone density due to lack of gravity. Using the vibration plates they reversed this condition over several months and returned to normal. Take into consideration that cosmonauts are probably very fit to start and much younger than most of us so they had that advantage. However, in my experience I was able to strengthen my core muscles and improve posture. An added bonus was my pelvic muscles tightened and ended stress incontinence. I know this vibration plate did that for sure because when I got too busy to get on the machine for a couple of weeks, my muscles weren't quite as reliable.