Using a stretcher can exercise children's muscle strength and improve their physical fitness. Through different postures, you can also exercise muscle strength in different parts. But pay attention to the following points: 1. At this age, we are in a stage of rapid physical and intellectual development. Exercise should be based on coordination, not on strength training. The use of stretchers should also be based on the child's own ability. He can use whatever intensity he wants, and adults should not add it casually; 2. Cultivating sports interest is more important than sports itself. According to your child's weight, he is overweight. Instinctively, he would prefer strength events. If he is really good at this, I think you should hire a professional coach. If not, considering the quality of life of children when they grow up, we should focus on dexterity, speed and coordination.