This abdominal exercise is usually performed on the floor.  For most, this exercise tends to throw them off kilter.  For others, this exercise is too basic.  Here is a more advanced version of this exercise on a Bosu.  Try it out at home or the next time you hit the gym.

Start with both knees on the center of the ball. Now, take one leg out and find your balance point and align the leg with your hips.

Start with both knees on the center of the ball. Now, take one leg out and find your balance point and align the leg with your hips.

Take the opposite arm from the leg that is extended and extend it infront of you and making yourself nice and long. Focus on holding your core. Hold for 30-60 seconds and switch sides (source).

    This is a great exercise to help tighten up your mid section.  Since this exercise challenges your stabilizing muscle in both your legs, arms, and core; it will burn more calories then your traditional crunch. 

Adria Ali

(CES, PES, CPT, BS)