Why is swimming not effective in losing weight? Compared with other sports, swimming can be healthy and entertaining, and it is not as hard as some sports, so many people who want to lose weight through exercise choose swimming. However, people often complain that swimming time is not short every day, but the weight loss effect is poor, and some even get fatter. Dapeng Huang, a professor at Shandong Institute of Physical Education, said that swimming is undoubtedly a very good exercise in terms of consuming human body heat. Because water conducts heat 26 times faster than air, that is to say, at the same temperature, people consume more than 20 times more calories in water than on land, but why do some people swim to lose weight? Professor Huang said: when it comes to exercise to lose weight, 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. Losing weight can be achieved by consuming fat. At first, swimming was in the anaerobic exercise stage. Energy consumption mainly depends on anaerobic glycolysis of sugar. At this stage, the exercise is very intense, people are short of breath and lack of oxygen, and they don't use fat at all. Continue to exercise, and the human body begins to enter the aerobic exercise period. In the next hour, in the state of moderate intensity exercise, the aerobic metabolism of sugar provides energy supply. You won't burn fat this hour. If you continue to exercise, you will start to consume fat through aerobic metabolism of fat. Therefore, swimming must continue to exercise for at least an hour before it can start to lose weight. Some people can't achieve results if they don't have enough exercise time or exercise enough. Professor Huang reminded that we should also pay attention to dieting when swimming to lose weight. But people have the phenomenon of excessive recovery after exercise. Simply put, in order to adapt to the improvement of the next stage of exercise, the human body consumes more energy after each exercise, which is a self-protection measure of the human body. Therefore, after swimming, people can often eat well and sleep soundly, and their intake of calories is replenished, even more than their intake. Therefore, if you don't pay attention to dieting, especially if you stop exercising after a period of time, it is easiest to make your weight exceed the original level. This is an important reason why many people fail to lose weight through exercise. Therefore, people with weak physique can often become strong quickly through short-term swimming exercise. Obese people tend to get hungry more easily and consume more energy after swimming. Swimming seems to be more suitable for people who want to become stronger, but not for people who lose weight with it, especially those who lose weight irregularly. For example, Professor Huang said, in fact, as long as you compare swimmers, you will find that who has seen any swimmer who is thin? Both men and women, the body is generally plump and the skin is smooth and round, which is a manifestation of more subcutaneous fat. The comprehensive massage effect of water and the water temperature below human body temperature can easily promote the growth of subcutaneous fat. Five alternative slimming exercises For many people, the ultimate goal of exercise is to have a healthy and beautiful body and a happy mood. The following exercises are quite simple to operate, the process is quite interesting, and the effect is not general. Since reptiles walk upright, the spine bears more than 60% of the whole body weight, so it is the weak link of the body; Crawling can disperse the body weight to the limbs, reduce the load on the spine, and play a role in preventing and treating spinal diseases. Often walk backwards, so that the waist muscles keep rhythmic tension and relaxation, improve the blood circulation of the waist, thin waist and reduce fat; At the same time, you can also exercise the muscles at the back of Achilles tendon, calf and knee, and you can also exercise the cerebellum to increase the flexibility and coordination of your body. Walking barefoot can first release static electricity from the body. Walking barefoot can also help you massage your feet. You know, the soles of the feet are called the second heart of the human body, and often stimulate the soles of the feet, which can make the blood circulation of the feet smooth and make the body slimmer and healthier. Long-term handstand can easily lead to visceral ptosis, insufficient blood supply to the brain, varicose veins and other diseases, and handstand can achieve the role of prevention and relief. In addition, it can also change the state of physical tension and fatigue, promote hormone secretion, and make you youthful and beautiful. Walking in the rain can produce a lot of negative oxygen ions and air vitamins. Walking in the rain can make you relaxed and happy, help regulate your nerves and eliminate depression.