Aerobic exercise refers to the physical exercise carried out by the human body under the condition of adequate oxygen supply. That is, in the process of exercise, the oxygen inhaled by the human body is equal to the demand, achieving physiological balance.

Simply put, aerobic exercise refers to low-intensity, rhythmic exercise, which lasts for a long time (about 30 minutes or more) and has moderate or upper-middle intensity (60% to 80% of the maximum heart rate).

The biggest feature of anaerobic exercise is that the oxygen intake during exercise is very low. Because the speed is too fast and the explosive force is too strong, the sugar in the human body cannot be decomposed by oxygen, so we have to rely on "anaerobic energy supply". This kind of exercise makes the body produce too much lactic acid, which leads to muscle fatigue, muscle soreness and shortness of breath after exercise.

Extended data:

The biggest feature of anaerobic exercise is that the oxygen intake during exercise is very low. Because the speed is too fast and the explosive force is too strong, the sugar in the human body cannot be decomposed by oxygen, so we have to rely on "anaerobic energy supply". This kind of exercise makes the body produce too much lactic acid, which leads to muscle fatigue, muscle soreness and shortness of breath after exercise. In fact, a large number of intermediate metabolites such as pyruvate and lactic acid will be produced during glycolysis, which cannot be eliminated by respiration. When these acidic products accumulate in cells and blood, they become "fatigue toxins", which will make people feel tired and weak, muscle aches, difficulty breathing, rapid heartbeat and arrhythmia. In severe cases, acidosis will occur and the burden on liver and kidney will increase.

The pre-stored ATP energy of human body can only maintain the ultimate intensity exercise for about 2 seconds, and then the ATP synthesized by CP can last for about 6 seconds, totaling about 8 seconds. That is to say, if you run less than 100 meters at full speed, you will be finished. When you run 200 meters, the next 100 meters must be powered by the rapid synthesis of blood sugar in anaerobic state, and its by-product is lactic acid. Running 200 meters or 400 meters, swimming 100 meters, tennis, football and other sports all use the energy provided by anaerobic decomposition of muscle glycogen, so a lot of lactic acid accumulates in muscles after exercise, which is one of the reasons for muscle pain after exercise.

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