Lie on your back with your legs extended and arms by your hips, palms facing down. Zip your legs together, keeping them straight and lifting them off the ground, while simultaneously lifting your head, neck, and shoulders. Hover your arms a few inches off the ground, keeping them straight.
Keep your lower back pressing into the floor; if it's arching, lift your feet up higher. To modify, bend your knees to tabletop position.
Hold for 15 seconds, then pump your arms up and down for 15 seconds.