Exercises from the community
Medicine Ball Straight Leg Raises
Medicine Ball Straight Leg Raises add resistance to a classic lower-ab movement, using the weight of the ball to make bigger gains than the bodyweight-only version. Lie on your back holding a medicine ball between your feet or ankles, legs extended toward the ceiling. Lower your legs slowly toward the floor without letting your lower back arch, then raise them back up using your lower abs.
Hip Raises (abs)
Hip Raises use the weight of your legs as resistance to boost lower abdominal muscle growth, with a straighter leg position than the bent-leg variation for a longer lever arm. Lie on your back with your legs extended straight up toward the ceiling. Contract your lower abs to lift your hips a few inches off the floor, then lower back down slowly without letting your legs drop or swing.
Medicine Ball Russian Twists
Medicine Ball Russian Twists are a great, well-known move for cutting the oblique abs, with the ball adding resistance to the classic bodyweight twist. Sit with your knees bent and heels on the floor (or lifted for more difficulty), leaning back slightly to engage your core. Holding a medicine ball with both hands, rotate side to side, tapping the ball near the floor on each side.