Bosu Abs is a kick butt ab workout that is very effective. Using a Bosu ball gives you a much larger range of motion and lower back support to ensure that you are firing your abdominal muscles. Along with a little bit of stabilizing the upper body, having strong abs is a great way to improve your posture and stand up taller. All you need for this workout is one Bosu Ball, however all moves can be done on a mat. Enjoy following along with Charlotte for Bosu Abs!