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Pick up a pair of dumbbells—and don't put them down.
Target your abs and obliques in this rapid-fire circuit.
Make the most of leg day.
Build the strength, skills, and stamina of a CrossFit champ.
Blow up the muscles in your arms, shoulders, and back.
Put the finishing fat-burning touches on your physique.
An Octagon-worthy routine.
Our editor goes the distance with this tough workout.