hehe, I just treating a traumatic compression fracture patient. He is young and jus took off the binder. He almost loss all range of motion in lumbar area. complain low back pain. The treatment I gave him are pelvic tilt, core mucsle training. Active ROM within pain free range. Extension is his most painful position. I am thinking I may let him do some gentle stretching like what you said cat stretch or others. I also think about increase his cardiac endurance after 2 months less active life, they may need this, but I got to improve his stability first or use the binder when he exe. I would like to hear any comments.