Lie face down on the floor with your arms and legs extended.
Keeping your arms and legs straight and your neck long (gazing at the floor), simultaneously lift your arms and legs up so they're hovering several inches off the floor.
Think about keeping your body as long as possible — stretching from fingers to toes — versus crunching to get your hands and feet as high as you can.
Hold for 10 to 30 seconds, then rest for a maximum of 30 seconds.