Kacy Duke, celeb trainer to the stars, shares her mind-body approach to a sexy shape in the Show It Love Workout. Gwen Stefani tones up with Duke's Woman Warrior Workout, with combo moves like the side-lunge-into-curtsey to blast saddlebags. "My moves are empowering, motivating and pretty," says Duke, who combines ideas from her background in track and field as well as dance.

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