I was in physical therapy several months ago and this was one of the things I did every session, along with 4 excercises and a ride on the recumbent bike. The horrible groin pain I had did, indeed subside. I was leary at first because I had never heard or seen of the vibration plate. I recently purchased one and returned it because the lowest setting was too much for me. I purchased another one that just arrived today from Dicks Sporting Goods and I believe I will like this one much better. The employees at physical therapy swear by them. I have hopes it will help keep everything in check for me. I will do the same routine they had placed me on.