/kloc-the weight of 0/6 years old is not fat for boys. The best way to reduce abdomen is to lean back and hold your head. It is best to do it on the instrument, with your feet up and down, your head in your hands, and use the strength of your abdominal muscles to make your upper body rotate left and right at the same time. If there is no equipment, you can press your feet alone. Relax at both ends. For the first time, each group will do 20 exercises, with 3 groups of * * *. Later, your physical strength will increase.