Aerobic exercise: also known as aerobic metabolic exercise, refers to the physical exercise carried out by the human body under the condition of sufficient oxygen supply, and the body mainly supplies energy by oxygen consumption and oxidation. That is to say, in the process of exercise, the oxygen inhaled by the human body is equal to the demand, achieving physiological balance. It is characterized by low intensity and long duration of exercise, which can enhance and improve cardiopulmonary function, prevent osteoporosis, regulate psychological and mental state and consume body fat. It is the basic method of fitness exercise. It includes brisk walking, swimming, cycling, playing Tai Ji Chuan, dancing and doing rhythmic sports. Anaerobic exercise: During exercise, due to strenuous exercise, the oxygen required for exercise cannot meet the needs of the body. At this time, we will experience insufficient energy supply through anaerobic glycolysis, and too much lactic acid will be produced in the body, leading to muscle fatigue and even muscle and joint pain. Characterized by high intensity and short duration, it belongs to intense competitive sports and is not often used for fitness and health care. It covers more intense sports such as running, weightlifting, throwing, high jump, long jump, tug-of-war and muscle strength training. ?