Does anyone know of the "Power Plate"?

Question

And whether it really works or not? And whether it will help with excess skin and build muscles?

Answer 1

Power Plates" vibration machines move your body in three different directions as you stand on a vibrating platform and hold a vibrating handle. The result is muscle strength, flexibility and bone loss prevention.

By holding poses for up to a minute, '"You can get a total workout in 15 to 30 minutes," personal trainer Kay Smith said.