Fig. 2
From: Lumbar spondylolisthesis: STATE of the art on assessment and conservative treatment
Example of exercise for subjects with positive Active Straight Leg Raising. The subject slowly raises his/her legs, alternatively, on a little box laid between the feet, and go back. Using his/her fingers, the subject checks to not move or turn the pelvis, enhancing motor control at the starting, during the movement, and at the return on the starting position. This exercise may be performed ten to twelve times for each leg, every day