The Redcord is an absolutely AMAZING device! I've never seen or used anything like it. I have to wear a brace that can cause severe back pain. Some days the pain is so bad that I can barely walk. On one of those days, my therapist wanted to try the Redcord with me. I never expected the results we got! The first time we tried it, my pain was a 6/10; the Redcord took it away completely. It was as if someone had flipped a switch in my body to stop the pain! The other times we've used it, my pain has been an 8/10- the Redcord dropped it to a two! Regular exercises can be very beneficial, but they can also cause additional pain-the Redcord does not. The Redcord is the best thing to ever happen to physical therapy! I'm so thankful to my therapist for using it with me!