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Take on a few rounds of this punishing, pec-pounding routine.
Build massive biceps and triceps.
The circuit will forge rock-solid abs, arms, and shoulders.
All you'll need: three moves and a pair of dumbbells.
All you'll need is a set of dumbbells.
Train like a fighter with this full body punching bag workout.
Put on lean mass with this total-body routine.
Explosive moves with CrossFit and Tabata were key.