* Lie flat on your back on a mat with your hands behind your head. * Place your elbows flat against the ground. * Bend your knees and place your feet against the floor, shoulder-width apart. * Keeping your elbows straight, brace your abs and lift your shoulders and upper back off the floor as you exhale. * Don’t use your hands to pull your body up. Make sure you are engaging your abs. * Raise your torso just enough to pull your shoulder blades and lower back from the floor. * Lower yourself back to the starting position, inhaling, making sure to keep your core engaged.