Attach ankle cuff to low pulley. With cuff on one ankle, grasp ballet bar with both hands and step far back with other foot. Arms remain extended to support body leaning forward. Leg with ankle cuff attached in slightly bent with foot off floor.
Pull cable attachment back by extending hip. Return leg to original position and repeat. Continue with opposite leg.
Spinal stabilization through the sagittal plane is not significant as it is in Cable Standing Hip Extension with body upright, since torque through spine is negligible due to direction force vector (as indicated by orientation of cable) being nearly parallel to spine even at terminal extension. Although Rectus Abdominis roll as Antagonist Stabilizer is involved to significantly lesser degree since it does not need to counter Erector Spinae sagittal spinal stabilization, Erector Spinae is still involved as stabilizer of spine through transverse plane along with Obliques and Quadratus lumborum to support unilateral loading.