Kraken Huang Dapeng, a professor at Shandong Institute of Physical Education, said that swimming is undoubtedly a very good exercise in terms of consuming body heat. Because the heat conduction speed of water is 26 times that of air, that is to say, at the same temperature, the heat energy consumed by people in water is more than 20 times that on land. But why do some people have poor weight loss results by swimming?
Professor Huang said: “When it comes to exercise and weight loss, we must first understand the mechanism of exercise and energy consumption. During exercise, energy consumption is completed in three stages, namely sugar metabolism, fat metabolism, and protein metabolism. Weight loss is achieved through fat consumption. ”
At the beginning of swimming, it is in the anaerobic stage. Energy consumption mainly relies on the anaerobic glycolysis of sugar. The exercise at this stage is very intense. People are short of breath and have insufficient oxygen supply, so fat will not be used at all. If you continue to exercise, your body will begin to enter the aerobic exercise period. During the subsequent hour of moderate-intensity exercise, energy supply is provided by aerobic metabolism of sugar. You won't burn fat during this hour either. If you continue to exercise, you will begin to consume fat through aerobic metabolism of fat. Therefore, swimming will only start to have a weight loss effect after at least one hour of continuous exercise. Some people do not exercise enough time or do not exercise enough to achieve the effect.
Professor Huang reminded that when swimming to lose weight, you should also pay attention to diet at the same time. However, people have a phenomenon of "excessive recovery" after exercise. Simply put, in order to adapt to the increase in exercise level in the next stage, the human body must consume more energy after each exercise than before. This is a self-protection measure of the human body. Therefore, after swimming, people can often eat well and sleep well, and the calories consumed are replenished, or even more than consumed. Therefore, if you do not pay attention to dieting, especially if you stop exercising for a period of time, it is most likely to cause your weight to exceed the original level. This is an important reason why many people fail to lose weight through exercise.
Therefore, people with weak physiques can improve their health through short-term and persistent swimming. exercise , often becomes strong quickly. Obese people are often more hungry after swimming than before and consume more energy. Swimming seems to be more suitable for people who want to make themselves stronger, but less suitable for people who use it to lose weight, especially those who exercise irregularly to lose weight.
Professor Huang gave an example. In fact, if you compare swimmers, you will find that who has seen any swimmers who are thin? Regardless of men and women, they generally have plump and plump bodies. skin Smooth and round, this is a sign of more subcutaneous fat. The comprehensive massage effect of water and the water temperature lower than human body temperature can easily promote the growth of human subcutaneous fat.