Lie flat on your back with your knees bent and feet flat on the floor.
Your legs should be parallel, with your feet about hip-distance apart and your ankles directly below or just slightly in front of your knees.
Curl your tailbone up and off the mat while tilting your pelvis slightly toward the ceiling.
Keep your abdominal muscles active and engaged throughout the exercise.
Move:
Engage all the glute muscles to lift your entire seat and tailbone three inches off the floor. Keep the back of your rib cage on the floor as much as possible to avoid putting pressure on your neck.
While activating the glutes, lift your hips up an inch and back down 20 times.
For more of a challenge, add in this exercise variation: Engage your glutes to lift the hips three inches off the floor, then lift the left leg up and bend the left knee to a 90-degree angle. Press the right heel into the floor to really activate the glutes as you lift the hips up and back down. Repeat 10 times, then switch legs.