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Plank Twist

The Plank Twist exercise targets your abs, obliques, back, shoulders and arms while working your hamstrings. Do 8 reps. Plank Twist, 1 set of 8 reps.

-Drop 10 pounds with Fitness Magazine's You Can Do It Plan. Plank Twist: Do 8 reps. If you need extra balance, place your feet wider apart.