There are three energy supply systems in human body: phosphagen energy supply (ATP-CP), glycolysis energy supply and aerobic energy supply. Among them, phosphagen and glycolysis are called "anaerobic energy supply system". Anaerobic energy supply is characterized by "fast ATP production rate, but low production capacity", so the characteristics of anaerobic exercise are generally "short-term and explosive"
Anaerobic exercise refers to the high-speed and vigorous exercise of muscles in the state of "hypoxia" Anaerobic exercise is mostly exercise with high load intensity and strong immediacy, which is difficult to last and the time of fatigue elimination is slow.
Resistance movement is the active movement of muscles when overcoming external resistance. The magnitude of resistance depends on the muscle strength of the affected limb, and the degree is that the resistance can be overcome to complete the action after exertion. Resistance can be carried out by others, their own healthy limbs or equipment.