Zhang Chengyu, what is aerobic exercise? There are generally two definitions of aerobic exercise: 1. When exercising, the heart rate reaches 70%-75% of the maximum heart rate, which can be considered as aerobic exercise. 2. A more scientific definition is: 1.5 minutes of rhythmic big muscle exercise will increase the heart rate. Aerobic exercise has always been recognized as the most effective way to burn fat and increase muscle mass. It can also exercise cardiopulmonary function, reduce the risk of cardiovascular diseases, promote blood circulation, promote gastrointestinal peristalsis, increase blood oxygen content, reduce carbon dioxide accumulated in the lungs, and enhance cardiopulmonary function. Doing this at home can effectively burn fat. However, Japanese fitness coach Mori Junxian believes that the concept that "it takes at least 15 minutes at a time to be effective" is out of date. The new concept of aerobic exercise is that short-term aerobic exercise every day also helps to burn fat. How can we achieve the goal of aerobic exercise in a relatively short time? Sen Junxian recommended two simple and practical moves, which can be easily done at any time and anywhere to achieve the purpose of high-efficiency fat burning: aerobic exercise fat burning action: feet are shoulder-width apart, stand up straight, then touch the left knee with your right hand and the right knee with your left hand. Key tip: 1. The left and right movements are a group, at least 20 ~ 30 times in a row. 2. Every time you do an action, you should return to a straight state. Don't do it slowly, you can turn on the music and move quickly with the rhythm. Spread your feet slightly, straighten your waist, raise your left thigh with your hands, and high-five your hands on the inner thigh. Return to the posture of 1 first, then switch sides, lift your right thigh, and high-five with both hands. Key tip: 1. The left and right movements are a group, at least 30 ~ 40 times in a row. 2. You can express these two by music rhythm.