Why do you get fatter and fatter when you exercise? Exercise can improve the body's basal metabolic rate and consume calories, so it helps to lose weight. The researchers asked 72 women to run for 30 minutes and measured the concentration of leptin, the product of obesity gene, in the blood before and after exercise.

2. High-intensity exercise does not consume fat.

The results showed that 86% of the subjects' weight loss protein increased significantly. The results show that high-intensity exercise basically does not consume fat, especially during anaerobic exercise, the metabolite produced by anaerobic glycolysis of muscle glycogen is lactic acid, which is mostly decomposed into carbon dioxide and water in the liver under aerobic conditions.

3. strenuous exercise sometimes increases fat.

The other part synthesizes glycogen again, but a small amount of lactic acid also synthesizes fat through metabolism. This is why high-intensity exercise can not only lose weight, but also sometimes increase the accumulation of fat in the body. Therefore, sports medicine experts suggest that people who want to lose weight generally exercise for half an hour to an hour, and their heart rate reaches about 130- 175 per minute, which can be regarded as moderate exercise and can increase the concentration of protein for losing weight.

Three misunderstandings in sports:

1. The greater the exercise intensity, the better the effect.

The exercise of dieters should follow the principle of gradual progress and vary from person to person. Different people, that is, different objects and obesity are treated differently, and targeted physical exercise is taken. Step by step, that is, the principle of gradually increasing exercise load, only a certain intensity of stimulation can change the adaptability of the body. Too little exercise has no exercise effect, but too much exercise will cause damage to physical function. Don't take the method of "overeating" in physical exercise, suddenly increase the amount of exercise or suddenly interrupt the practice.

Only by mastering the principle of step by step, which varies from person to person, can we achieve the best results in the shortest time.

You can lose weight by jogging for 30 minutes every time.

It is unscientific to lose weight like this. Practice has proved that only when the exercise lasts for more than 40 minutes can the body's fat be mobilized to supply energy with glycogen. With the extension of exercise time, the amount of fat energy supply can reach 85% of the total consumption. It can be seen that there is no obvious fat consumption in exercise shorter than 40 minutes, regardless of the intensity.

3. Take more exercise and eat too much food.

This practice can only be done occasionally. Facts have proved that people who feel that they eat too much and exercise too much can only gain weight in the end. If a habit is formed, the result can only be harmful. If you often use prolonged exercise as an excuse for overeating, you have actually put yourself in an overtraining situation, so your body has no time to recover from overtraining fatigue.