Stand behind the chair with both hands on the back. Step your feet back and together, bend knees slightly, and lean forward from your hips until your chest is parallel to the floor. Slowly raise your left arm outside of your ear as you rotate your torso to the left. Hold for 1 count and then return to start. Repeat, alternating sides each time, for a total of 20 reps.
Form tip: The key to success with this move is rotating both shoulders (not just lifting your arm and turning your head) as you raise your arm—it should resemble a swimming motion—to activate both your back and abdominal muscles.
