I too have a WBV machine and I'm using it to get my muscle mass back up. I find it great because you can set it at the intensity and whatever program you may need. Also, you can do leg massages with it which feel wonderful. Mine is a T-ZONE VT-20, which I bought used on-line 2 years ago for $200. Regular price is around $1,200. I highly recommend WBV with or without PMR. Thanks for sharing Teri!