20-Minute Flat-Belly and Toned-Arms Workout
We're going to work your abs and arms with a bunch of multitasking moves that target both areas and more. Grab a set of dumbbells between five and 10 pounds, and get ready to feel the burn. Here's a printable PDF version of the workout so you can take it to the gym.
Credits: On Anna: BodyLanguage; On Brittany: Puma, Koral, and Athletic Propulsion Labs (APL); On Kaycee: BodyLanguage, Lululemon, and Athletic Propulsion Labs (APL); Manduka mats and Corkcicle bottles