There are endless ways to work your abs, but lower abs workouts and exercises are usually the hardest to come by. The upper abs and obliques tend to get all the love from many popular exercises, while the lower abs are notoriously harder to target. It's important to work all of your core muscles, including targeting the lower section of the rectus abdominis. If one portion of your core is weak, this can cause other areas to become overactive as they try take on more of the work. ~ Berceste