Keep the rear-stop muscles and abs engaged. Bend your elbows to lower down until you almost contact the floor. Carry back up by pushing by your elbows, Keep the torso in the straight line all over the shift. The hip thrust also includes fewer loading to the spine than barbell https://econopass.com/health-and-fitness/fitness-zone/fitness-effective-workouts/10-effective-exercises-building-lifelong-core-strength-without-planks/