12 Moves Celebrity Trainer David Kirsch Says Every Woman Should Do

How to do it: “Start in a plié squat position with your arms extended overhead, holding a medicine ball with your thighs parallel to the floor. Stay engaged in the plié squat as you walk forward (waddle), stepping the left foot in front of the right, then the right foot in front of the left. Keep your knees out and aligned with your toes, your weight in your heels, and your butt sticking down and out throughout the exercise. Take five total steps forward and then reverse. That’s one repetition. Repeat five times.