I have seen a physical therapist who advocates bending backward from a prone position, like doing a push up, but keeping the legs and pelvis area down on the floor(he calls them "press ups". Ithink it is part of the "McKenzie Method." I got relief from this in the past, but it's not helping much now that I work at a computer all day long. My problem is lower back pain, sometimes light pain going down the right side of my leg, but primarily mid-back pain from too many years writing at a computer. How does this stretchsitting, etc., compare to McKenzie?