Exercise can increase abdominal muscle mass, but the level of body fat is the factor that maximizes the degree of visibility of the abdominal muscles.

If you want to get out as soon as possible, one is the regular crunches, curls, hanging leg raises and other (recommended weight-bearing) exercises.

The second is that there should be more cardio, and diet control during exercises to minimize fat. The latter is often more important and the most test of perseverance, adhere to a good month can also come out.