Thank you PALady for the second time today you have helped me find information and I really do appreciate it. The last time I had PT was in Oct. and Nov. of last year and while I never was hooked up to a traction contraption my Physical Therapist did do some thing to align my back. I layed on a table and after she lined up my legs, one is a bit shorter than the other, she would take the shorter leg and gently put firmly pull on my leg till my ankle bones matched. It worked wonders so I am assuming that she was giving me a sort of traction. Anywho, thanks again.