Start: Attach a stirrup handle t the low pulley. Grab it overhand with your nondominant hand and sit in the same position as for the supinated and pronated cable rows. Place your free hand on your thigh or on the floor next to you for balance.
Finish: Pull the handle to the lower side of your rib cage, keeping your elbow out away from your body and your torso stationary. Pause, then slowly return to the starting position. Finish the set with that arm before repeating with the other arm.
Hold the handle underhand, and keep your elbow close to your rib cage as you pull back the handle.