While diet is what determines the amount of fat in your middle, and therefore, being slim or not, exercise determines the degree of toning and therefore can obtain a flat stomach. Swimming exercises you can achieve that goal.
Swimming is an aerobic exercise, because if you do not have specific physical conditioning is very difficult to swim at a high intensity, and fatigue that would come in quickly.
Thus is made medium-low intensity, but the abdominal muscle tone is benefited if you respect certain aspects that have to do with the position of swimming.
The horizontal position favors the recruitment of the muscles of the middle to give synergy and balance in motion. This is accomplished by shrinking abdominal semi-permanent level, bringing the navel towards the spine.
This sustained muscle work for several minutes allows the development and increase the basic tone of the entire abdominal wall. Also the movement in the water, allowed to burn calories, reducing fat deposits.
Swimming exercises thus recommended to do them all in a horizontal position, floating, and taking into account the synergy that makes the middle.
Some simple suggestions for you to practice in the pool can be:
* Swimming freestyle with one arm extended alongside the body and the other by the stroke. Then switch sides.
* Take a kick board with his arms outstretched in front of the head and move forward with breaststroke kick, ie up and down the legs extended.
* The same previous position, but make the kick as if you were a frog, ie opening and closing the legs, corresponding to the breast stroke.
Any exercise you can think of in a horizontal position is beneficial for increasing muscle tone in your abdomen.