I’ve actually experienced this machine. I was barely able to move my left leg or bend my knee prior to the treatment from tripping on the ramp heading into a plane. For 3 weeks I was in agony. One session with this machine and I was walking pain free in 24 hrs. I got nauseous, fatigued, and weak that night into the next morning. Suddenly I was just walking normally and pain free. I’m considering the investment.