1. Lie on your back with your knees bent and your feet flat on the floor. Place your arms at your sides, palms facing down.
2. Squeeze your glutes and slowly raise your butt off the floor until your body forms a straight line from your knees to your shoulders. Hold this position for 3 to 5 seconds, then slowly lower yourself to the floor. Tip Press with your heels, not toes, when you begin to press up.
THIS MOVE WORKS: Glutes, Hamstrings, Hips, Lower Back