Do aerobic exercise first when you exercise, which can improve your heart and lung function and help you train better when you exercise. The first 20-30 minutes will consume our muscle sugar (of course, you will consume fat after that). When you are doing strength training, you are usually using glycogen as fuel.

For people who lose weight, there will be a platform for losing weight, and so will strength training in fitness. When you enter the platform period, you will find that your muscle strength can't be improved, and the capacity of the number of groups can't be improved. The most important thing is that even the rest time during fitness is flat, which not only can't shorten the rest time, but sometimes it may be extended. Therefore, doing aerobic exercise before fitness exercise and improving heart and lung function can help you get through the platform period of fitness quickly.

Aerobic exercise can make your blood "rich", increase red blood cells, white blood cells and hemoglobin in your blood, improve your body's nutritional level and metabolic ability, and also promote blood circulation, make your blood vessels tough, increase the capillary network in your muscles, and make your muscles plump and firm. It can improve the toughness of blood vessels and is beneficial to the wrapping of blood vessels.

Many people don't notice the importance of warm-up, so they just warm up, but many basic skills of the body are not turned on and the heart rate is not mobilized. Insufficient warm-up may lead to various problems during fitness. Therefore, doing aerobic exercise before fitness can fully open your sports function, promote you to enter the fitness state quickly and make your training effect better.