Way too often people think that to have strong abs you need to do 1000 crunches a day but forget how functional those abs and more specifically your core as to be.
In order to move well and to be strong while unstable, you have to train your core muscles with movements in all planes.
In this video you will find some exercices to help you strengthen your body
<== Link to video
If you need advice on how to do some movements feel free to e-mail me
Have fun doing it,