SUPINE 90-90 MARCHING – PELVIC BRACING
Start by lying on your back with knees bent and flattening your pelvis and low back down to the floor. Brace and hold this position as you raise up one leg at a time to TABLE TOP position as shown. Your hips and knees should be bent to approximately 90 degree angles. Do not allow your low back to arch upwards for the entire exercise.
Next, lower one leg down close to touching the floor. Return that leg to 90-90 position and then repeat on the other side.