- Begin with a light dumbbell in each hand. Stand with your abs tight and your back flat. Guard your face with your fists, and keep a soft bend in your knees.
- Keeping the weight in your right foot, pivot your left foot, rotating your abdomen toward the right as you throw your left punch across your body.
- Return to centre, and repeat on the opposite side, maintaining a tight and stable core throughout. This count as two reps.
- Complete 20 reps on each arm for a total of 40 reps.
Take two minutes of rest once you've completed the fourth round and then begin part two of the workout.
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