This is how you do it
Lie face up on the floor, with your knees bent and feet flat on the ground. Keep your arms at your side with your palms down.
Lift your hips off the ground until your knees, hips and shoulders form a straight line. Squeeze those glutes hard and keep your abs drawn in so you don’t overextend your back during the exercise.
Hold your bridged position for a couple of seconds before easing back down.
Downward Facing Dog
Glutes, Legs & Core