I still haven’t come across one of these vibrating platforms. However, I noticed my washer started shaking quite violently. Hmm. I sat then stood on it for a bit. I could see how the platform could work some stabilizer muscles without one even realizing it. My hamstrings did feel looser afterwards, too, with no stretching. Wow. That was probably only 1 – 2 minutes. Pretty good. Can’t let the wife see this sort of craziness, though, lol.