HOW: Begin standing with one foot flat in front of you and the other behind you with your toes pushing into the ground. Maintain that position as you put both arms straight up overhead. From here, Bend to the side as you keep your arms overhead. Alternate bending your torso from side to side.
FEEL: You should feel a stretch in your side and back.
COMPENSATION: Keep your hips and feet facing forward as you bend to each side. Keep your arms overhead the whole time.