HOW: Anchor a band at waist height and position your hands at your belly. Step out until you feel enough resistance that challenges holding the hands at the belly without the band pulling you in. Bend your knees slightly, tuck in your hips in a posterior pelvic tilt , and keep your hands at your belly - this is your starting position. Push your hands straight out in front of you, then rotate away from the anchor. Control the return back to the starting position.
FEEL: You should feel your obliques working. The abs may also activate to assist with stabilization.
COMPENSATION: Avoid arching through the back. Avoid using momentum to rotate away from the anchor.