Attach ankle strap to low cable pulley then to your ankle. Face the weight stack and step back about 2 feet, grasping the frame for support. While keeping your knees & hips bent slightly and your abs tight, contract your glutes "kicking" the working leg back in an arc as high as it will comfortably go as you breathe out. Inhale and slowly bring working leg forward, returning to starting position. Repeat for all reps then switch legs.