Is the sweat suit a slimming "artifact"?
Expert: Losing weight ≠ losing weight and sweating ≠ burning fat
◎Xinhua News Agency reporter Xie Yuan
As the temperature rises day by day, many beauty lovers have started their new year's weight loss plan.
Among the many weight loss "artifacts" this year, a sportswear called "Blood Sweat Suit" frequently swipes the screen.
This kind of clothing sells "fast burning calories" and claims to be able to "accelerate calorie consumption" and "improve metabolism".
Can one piece of clothing achieve such an effect?
The reporter launched an investigation.
Prolonged wearing may cause excessive dehydration and even life-threatening
Ms. Wang lives in Taiyuan City, Shanxi Province. One winter's "sticking fat" made her "farther and farther away" from her ideal weight.
Not long ago, an advertisement for sweating clothes in the elevator attracted her. After consulting the business, she learned that this "black technology for weight loss" has functions such as "improving metabolism" and "accelerating fat burning", which is very suitable for her kind of exercise. People who work with limited time and are eager to lose weight quickly, so they place an order decisively.
With anticipation, Ms. Wang started exercising. However, every time she put on the sweat suit, she would feel stuffy all over her body, dizzy and dry, and it was difficult to persist for a long time. The exercise time was even shorter than before.
Ms. Wang told reporters that now this weight loss "artifact" has been thrown into the closet to "eat ashes".
The reporter consulted a hot sweat suit online store with monthly sales of more than 6,000 pieces about the product. The merchant explained, "The sweat suit is made of heat-controlled silver technology fabric, which can form thermal circulation and heat reflection on the body surface. It can consume multiple calories to improve the body's metabolic effect, and the thermal cycle can effectively open the pores of the body to activate the sweat glands, and achieve the phenomenon of sweating and burning fat." As for the weight loss effect, "customer feedback generally loses about 2-20 pounds per month".
A sales anchor also declared, "As long as you are prone to obesity and don't have time to exercise, you can wear sweaty clothes to improve the efficiency and effect of exercise."
However, the reporter searched the Internet and found that many sports enthusiasts have released videos of the experience of sweating clothes. Most of them said that wearing sweating clothes for weight loss is not obvious. Wearing them for a long time may lead to excessive dehydration and cause damage to the body. even life-threatening.
How much sweat is not necessarily related to fat burning effect
The reporter learned that the principle of the sweat suit is not complicated: the human body is partially wrapped by waterproof materials, forming a certain closed space with the outside world, so that the heat generated by exercise cannot be quickly dissipated. In this case, the human body is in order to maintain a constant body temperature. Need to further increase sweating, so as to achieve "sweating."
Sweat suits are not new.
Originally, it was designed for boxing, weightlifting and other athletes who needed to lose weight, and they achieved the weight requirement by quickly dehydrating and losing weight.
After passing the weighing session, athletes must replenish water and electrolytes in time to prevent excessive dehydration and lead to a decline in their competitive state.
Cheng Jingmin, director of the Health Management and Policy Research Center of Shanxi Medical University, emphasized that this method of weight loss is not weight loss.
In addition, the amount of sweating is not necessarily related to the fat-burning effect, because 84% of the fat decomposition products are carbon dioxide, which is exhaled by the lungs. "In other words, the calorie consumption of running for 1 hour is fixed, and whether it is sweaty or not It doesn't matter."
Previously, a famous diving athlete also bluntly stated on social platforms that the sweat suit "wears the body like a layer of tin foil, which is not airtight", "The weight is indeed lighter after sweating, but after drinking two sips of water, the weight is back. ".
Guo Yu, a physical fitness coach for the sports team of Guangzhou Sports Vocational and Technical College, said that the extra energy consumption gained from wearing sweaty clothes is negligible and worthless compared with the negative effects of stuffiness, dehydration and skin deterioration.
Moreover, these discomforts can also make people unconsciously reduce the intensity and duration of exercise, but affect the exercise effect and reduce calorie consumption.
As for the businessmen's claim that sweat suits can "improve resting metabolism after exercise", Guoyu said that resting metabolism generally refers to the calories consumed by the human body to maintain basic life activities and physical and mental energy in a quiet state, and exercise, rest, diet Such comprehensive factors are related, and it will naturally increase for a long time after exercise. "Businessmen promote that wearing sweaty clothes to exercise can improve resting metabolism, which is suspected of being charged an 'IQ tax'."
Weight loss is a long-term "project" and must not take shortcuts
Respondents said that consumers who have underdeveloped sweat glands and want to experience the feeling of sweating and rapid dehydration can try to buy sweat clothes to experience it, but if they feel unwell during exercise, they should stop in time, and replenish water and water after exercise. Electrolytes to prevent excessive dehydration; and for those who expect to lose weight by sweating clothes, other methods are recommended.
Professor Chen Anping, dean of the School of Physical Education of Shanxi University, said that losing weight is a "project" that requires long-term adherence, and scientific exercise, balanced diet, and adequate sleep are all indispensable.
If you pursue temporary weight loss by taking shortcuts, you may lose more than the gains.
He suggested that if you want to lose weight through exercise, you can use aerobic exercise combined with strength training. Those with limited time can try interval training of a certain intensity within the body's tolerance.
At the same time, it is recommended that you wear comfortable and breathable clothes when exercising, such as clothes with functions such as perspiration and quick-drying.
For people who lose weight with a large weight base and want to improve their resting metabolism, Guoyu recommends a multi-pronged approach. In addition to regular exercise and refusal to diet, they should also pay attention to the intake of protein and water, and ensure adequate sleep.