The energy provided by anaerobic decomposition of muscle glycogen can only last for about one minute, and it will all be used up after running 400 meters. When running 800 meters, in the next 400 meters, sugar, fatty acid and amino acid must synthesize a new heat energy substance ATP to provide energy, while sugar is supplied after glycogen decomposition, fatty acid is supplied after fat decomposition and amino acid is supplied after protein decomposition. This whole process needs oxygen, that is, oxygen burns sugar, fat and protein to produce heat energy ATP, which supplies the heat needed in the later stage of exercise. This is aerobic exercise. Running 800 meters or 1500 meters, swimming 200 meters or 400 meters, boxing and other sports all need oxygen to start burning glycogen, fat and protein, so the later stage of this kind of sports is aerobic exercise. As aerobic exercise, the heart rate is generally 65,438+0, 30 beats/min. In the first five minutes of exercise, glycogen will be burned first. The longer you exercise, the more fat you burn. As long as it lasts for half an hour to an hour, 50% of the calories consumed are supplied by burning fat. It's not good to eat only vegetables. It is a good habit to eat lean meat instead of greasy food. You can continue to insist on lotus leaf tea. The effect of losing weight is very weak. You don't have to drink. In fact, anaerobic exercise and aerobic exercise are the best combination. For example, squat first and then do aerobics. In fact, a certain amount of exercise is enough, and then under the control of diet, you will become thinner. Take your time, don't be too hasty. Just press it. Do it my way, and it will work. Obesity has nothing to do with eating meat. It's definitely unhealthy not to eat meat. Obesity and eating a lot of fat, snacks, sweets, refined staple foods and unreasonable cooking methods. Let me give you another example. You will understand that 100g lean beef contains about 108 calories100 calories. 38+000g oil cake 280~400 kcal 100 Potato chips contain 450 ~500 kcal 100 g soybean oil contains 900 kcal, such as beef and fish, which is low in calories and fat, while protein is very high, so people will feel full after eating it. Besides, I'm not suggesting that you only eat meat. I mean you should eat both meat and fruits and vegetables. Don't get me wrong, you have processed food many times. Eating boiled food, fried food and baked food will increase the risk of cancer. I don't know if this is right, but I hope I can help you. You can ask if you don't understand. I wish you success. O(∩_∩)O