Reverse crunches are one of the top exercises to build a deep V-cut and defined LOWER ABS. Stick your hands behind your head, tighten your core, and powerfully contract your lower abs — lift your hips off the ground and pull them into your chest. Do a few sets of 20 reps and you'll build muscle in your lower stomach in no-time flat.
The Plunging, Deep V, Lower Abs Workout is a 6 exercise juggernaut that produces hellacious results. It’s specifically geared towards chiseling out a flat, razor-sharp, rippled set of LOWER ABS; anchored by a deep, plunging V-cut across the hips. DO IT!