The main difference between aerobic and anaerobic is the proportion of the three functional systems. In short, you can only work hard to do the exercise that requires a rest for two or three minutes, that is, anaerobic exercise, which is mainly powered by phosphate and glycolysis. Aerobic exercise can last for a long time.
Aerobic metabolism is a slow but lasting energy supply system. The main fuel is carbohydrates and fats. There is continuous oxygen supply to the body to generate energy and maintain the basic metabolic rate. When we start exercising, such as sitting up and walking, our energy demand increases, which leads to a slight acceleration of our breathing and heartbeat. Basically, we can continue exercising for more than three minutes.
It depends on the aerobic metabolism energy supply system. When the exercise intensity increases to a certain extent, the energy demand exceeds the supply capacity of the aerobic metabolism system. The anaerobic metabolism system starts. The anaerobic metabolism can only use sugar as fuel. Its characteristics are fast energy supply, but low productivity. This is also one of the reasons why we will be exhausted after lifting weights for more than ten times. The biggest disadvantage of anaerobic metabolism is that sugar is not fully burned.
Lactic acid is produced. The accumulation of lactic acid leads to the reduction of environmental pH value of muscle cells, which is another main reason for fatigue during high-intensity exercise. Anaerobic exercise generally cannot last more than two minutes. In many cases, you need to rest to recover your strength. You cannot continue to exercise until anaerobic metabolic waste is taken away by the blood. If you want to lose weight, aerobic exercise is the first choice, because aerobic exercise consumes sugar and fat, Anaerobic exercise does not directly consume fat, but anaerobic exercise can improve the working ability of the body.