Zero in on your upper half with this strength session, which also gets the legs involved.

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Get your body moving with fitness trainer Khetanya Henderson, who will be leading this 10-minute arms workout joined by class members Tiff Marie and Paulyn Baens. In this routine, you'll start with a ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. We’re going to start ...

Start your week off right with Leslie's Arm Workout! Engage your triceps, biceps and shoulders with this easy-to-follow workout plan and get an inside look at what Leslie does to stay in shape. When ...