Instrument training mainly releases energy from the catabolism of muscle glycogen and glucose to synthesize ATP, and at the same time produces by-product lactic acid. In other words, the equipment training consumes almost no fat, and the equipment training is carried out in the order of muscle glycogen, blood sugar and liver glycogen. Aerobic exercise is to release energy to synthesize ATP in the process of oxidative decomposition of sugar, fat and protein to produce carbon dioxide and water under aerobic conditions. In the initial stage of aerobic exercise, glycogen is generally used for energy supply, and fat consumption begins in about 20 minutes. If you do aerobic exercise first and then practice the equipment, the glycogen in your body is almost exhausted during aerobic exercise, and then continue to practice the equipment, often by consuming muscles to achieve energy supply. If we practice equipment first and then do aerobic training, then we have consumed a large part of glycogen in the process of equipment training. At this time, aerobic training can enter the formula of fat consumption in advance, which is more conducive to reducing fat. The correct training sequence should be that you can warm up by walking fast for 5- 10 minutes on the treadmill, then do equipment training and finally do aerobic exercise and stretching.