Effective weight loss exercise requires athletes to exercise for 90 ~ 120 minutes, excluding the preparation and ending time before and after exercise; If only to prevent obesity, the exercise time can be 60 ~ 90 minutes. Many people don't understand why it takes so long to lose weight. First of all, when doing aerobic exercise, there is a very important number, which is "30". That is, after 30 minutes of aerobic exercise, the energy supply mode of human body is changed from glycogen release energy to fat release energy, that is, fat is mobilized after 30 minutes. Exercise 1 hour or so, the energy required for exercise is mainly fat. If we want to expand the results of fat consumption, it will definitely take 90 ~ 120 minutes.

Preparations for weight loss exercise

After mastering the basic principles of weight-loss exercises, you can start by choosing a set of weight-loss exercises. When choosing weight-loss exercises, it is best to exercise manually, which is less difficult and relatively safe to exercise. People who are willing to challenge themselves can also choose weight-loss exercises with soft dumbbells as props to increase the difficulty of practice and obtain better weight-loss effects.

1. With background music, preferably disco style, it can arouse people's emotions.

2. Before and after the weight loss exercise, it is very important for safety to make full preparations and appropriate finishing activities. When the room temperature is above 20℃, the preparation time is 10 minute, and when the room temperature is below 20℃, the preparation time is appropriately extended. The end time of the activity is about 10 minute, which is not affected by the temperature change.

3. Keep sports drinks at hand and replenish water in time. Even if you don't sweat profusely, you will lose a lot of water after 90 ~ 120 minutes of exercise.

4. Turn on the TV, turn the volume of the TV to the minimum, there is almost no sound, turn on the background music of the weight loss exercise, and then spend it easily with TV.