The Wide-Legged Plank is a simple variation of the standard Plank that targets the obliques more effectively. Assume the standard Plank position, but place your feet about 12 inches outside shoulder-width. Hold for 30-60 seconds.
25 Plank Variations for a Shredded, Stable Core
These 25 plank variations will add some variety to your workouts while you shred your core.