Lie face down on your stomach with your arms and legs extended. Keep your neck in a neutral position.
With your torso stationary and keeping your legs straight, lead with your heels and lift your legs up toward the ceiling (several inches off the floor). Squeeze your glutes at the top of the lift.
This is the other half of a Superman lift. Lower your legs back down to complete one rep.
Do 10 reps, then lift your legs up once more and hold for a total of five seconds.