Ab Techniques

Options
Proper Sit-Up Technique: http://www.youtube.com/watch?v=ygmgGqzsSiU

Proper Crunch Technique: http://www.youtube.com/watch?v=dwiLpUgufwo

Proper Leg Lift Technique: http://www.youtube.com/watch?v=3gI2SuaSYDk

Proper Plank Technique (minus the out-out-in-in part): http://www.youtube.com/watch?v=xFGXIMoArw4

Just in case you were wondering :)