The Double-Time Wood Chop exercise works your shoulders, arms, abs, obliques, butt and legs.
Burn, baby, burn - double time wood chop. The wood chop is just like it sounds, go from top to bottom as you hit it. For beginners, you can use 1 dumbbell. You're going to do 10 reps to this side, switch sides and repeat and aim for 3 sets.