The less central body fat you possess, the sooner you will see the effects of abdominal training and achieve the coveted six-pack. For untrained individuals, visible muscle development typically does not occur until at least six weeks into a training protocol. If you have relatively little abdominal fat, you should begin to see ab definition within one to two months.
Revealing Your Abs
If you have been working your abdominal muscles for longer than six weeks with intense exercises but still do not see visible results, you may need to shed excess belly fat. Interval training helps you shed more belly fat than simple steady-state aerobic exercise. Reducing the amount of refined carbohydrates -- such as pasta, beer, ice cream and bread -- in your diet will also reduce the amount of belly fat your body stores.