​​It hearkens back to an old fifties exercise machine. (Let’s jiggle the fat away!) And it also seems like bit of a preposterous notion. This vibration machine really does exercise your core and legs, with not a big effort on my part. I just had to hold on and not let my legs buckle. The first experience I was given a goal of ten minutes, but after six I was toast. As you can tell from the video, I had mounds of fun talking and singing while I shook. Sometimes the therapist had to stop it, because I was laughing so hard. (Keep on wiggling!) “Good vibrations!