Why do it: Sure, this is technically a glute move, but if you want to protect your lower back from injury, working your glutes with your lower back is important. “It gives you stability in that lumbar spine,” Reyes says.
How to do it: Lie on your back with your feet flat on the floor and your knees bent. Lift your hips as high as you can, and pause at the top. To add more of a challenge, place a plate on your hips.