Shift correction in side-lying (vs. prone) can also be effective. I have the patient spend anywhere from 30 seconds--> 3-5 minutes in each position, with the goal being centralization of symptoms. First, I respect their shift with 1-2 pillow placement under upper body, which is then reduced to 0-1 pillows, until pt. is in sidelying without any pillows. I then have them log roll to a prone position, then on to prone + extension. This can be a useful progression in my experience!