When range of motion is done...ah, the correct terms aren't coming to me right now it's after 1am. Well to exercise the joint you need to hold opposite sides of the joint you are working. For instance to extend his legs and help him you do not simply hold his ankle and pull his leg straight. I would start with holding his pelvic/tummy and with the other hand/fingers on the thigh do gentle circular range of motion on the hip joint. Next hold the thigh and calf and do flexion and extention. Obviously you don't do a circular motion on the knee joint. Next hold the calf and foot and work the ankle which does have flexion, extension and a bit of a circular motion. Next do flexion and extension on his toes. Be careful, don't use any force esp. at first. I would first practice on a person then maybe a healthy chin once before you do Jimmy. If you have any questions ask me.
