Exercises from the community
Crunches: Bent Knee (abs)
Crunches: Bent Knee are the classic, tried-and-true ab exercise, effective when you focus on a controlled contraction rather than momentum. Lie on your back with your knees bent and feet flat on the floor. Curl your shoulders and upper back off the floor toward your knees, holding an isometric squeeze at the top for a beat before lowering back down with control.
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.
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.