The Abs roll-out exercise is another great way to strengthen your abdominal muscles. For this exercise you will need a barbell with round weights on either side or a specific abs roller. The starting position is the kneeling position with your back straight up. Then grab the barbell, on the ground, with your hands just a little more than shoulder length apart. You then simply roll out the barbell, while remaining as straight as possible, as far as you feel comfortable and then bring it back into the starting position.
You will very quickly feel the burn on your abdominal muscles and it is important that you retain full control of the barbell/ab roller at all times. Repeat the whole process five times and you can extend this number as you feel more comfortable.