Here is the ab workout I do...
After a warm up:
using an exercise ball
v-pike prone ab crunch (3 sets of 10)
• lie face down (prone) on the ball with your hands on the floor for stability
• begin with the ball positioned at the upper thigh with your legs extended
• slowly roll the ball under your body with hips moving upward bringing feet closer to arms
• keep legs straight. Once in a v position, pause and slowly roll back to prone
using ab straps
hanging leg raises (3 sets of 15)
• hang from straps with upper arm parallel to the ground. Legs are extended.
• begin by lifting knees up to chest, pause and slowly return to extension
• do not swing. Lower your legs slowly, with control
• this exercise can also be done with a twist as you raise your legs to work the obliques
working the obliques
side lying leg lifts on floor (3 sets of 15 on each side)
• start on the floor, on your side; prop yourself up on your elbow. Keep opposite hand on the floor behind you for balance.
• with legs extended, lift both upper and lower body at the same time, creating a side lying v. Lower your body slowly.
• repeat on the other side
i got this from fitnessdiet and I do it every other day and it works for me
fitnessdiet.Info