Putkisto Marja recommends an weight lose exercise specifically designed to work the abdominals .

Stand up and rest your left leg on the wall. Then bring your right arm and pass it over your head to touch the wall, so that your body is completely arched. Bend your knees, put belly and breathe deeply, stretch your legs again. Repeat three times and switch sides.

This method is suitable for all types of people, even those not physically in good condition and usually do not practice any sport.