How to perform:
Setup
Lay on your back with knee bend up in line with your feet and centered under your trunk, arms holding one dumbbell on each side. Put the glute loop above knees and maintain tension through full range of motion without letting your knees cave in.
Movement
Elevate your hips off the ground until full hip extension (lockout), tighten your glutes and core and drive through the leg on the floor to lift your hips off the ground, slowly return to the start.
Tip
Attempt to have knee, hip, and shoulders in a straight line at the end of the movement and don't hyperextend your back.
Push through your heels to feel more your glutes.