Shape partnered with Nike to bring you this free “Power Boost” audio designed to tone your entire body and improve your strength and stamina. Serena Williams coaches you every step of the way, encouraging you through several speed bursts that are interspersed with sculpting moves. With energizing music by Kid Sister, Time Machine, and more, you’ll stay motivated until the end. Developed by award-winning Jay Blahnik, the coached workout can be shortened to 20 or 30 minutes for days when you’re limited on time.
To get the FREE download go to Shape magazine.com
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