Start the hip bridge by laying on your back. Pull the heels up close to your butt and then squeeze your butt then your abs to form a solid core. Extend one leg and without losing any tension in the core, drive your hips up and open them. Don’t let the side with the leg extended droop. The goal is to keep a straight line from the heel through the hip and into the shoulder. Keep your belly tight and squeeze your butt! Keep the tension as you lower yourself back to the ground.