Gym Abdominal Exercises Gym Exercises for your Abdominal Muscles: Stability Ball Crunches Stability Ball Crunches with Hooks Stability Ball Crunches Side to Side Abs Side to Side Feet Touch Abs Side Crunches Abs Leg Throwing Abs Leg Raises Abs Frog Style Stability Ball Killer Roll Outs Medicine Ball Power Walk Outs Barbell Windshield Wipers Abs Roller Abs Leg Raises Side to Side Abs Lateral V-Ups