HIIT is the abbreviation of high-intensity interval training, which means high-intensity interval training method. It is used to practice cardiopulmonary function and impact speed, and it has obvious effect of reducing fat with other training. This special training method has been popular in Europe and America since it came out.
The concept of anaerobic exercise is also based on anaerobic metabolic energy supply system. For example, anaerobic exercise refers to the movement of human muscles under anaerobic energy supply metabolism. But what we think of as anaerobic exercise in our daily life refers to the high-speed and strenuous 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.
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. Aerobic exercise refers to low-intensity, rhythmic exercise, which lasts for a long time (about 30 minutes or more) and has moderate or upper intensity (60% to 80% of the maximum heart rate).
Aerobic exercise consumes fat first, and strength training consumes sugar stored in the body. Within the set heart rate range, 45 minutes of aerobic exercise consumes more calories than the same time of strength training, while the strength training after practice requires rest between each group and consumes much less calories. The reason is this: aerobic exercise can achieve the purpose of consuming calories, but it can't improve the metabolic rate for a long time.