Chuanguan News reporter Zheng Zhihao
From mid-April, Chengdu, Suzhou, Changsha, Shenzhen, Quanzhou and other cities across the country will enter the time for the sports high school entrance examination. Among them, Chengdu, Changsha, Hefei and other places officially announced the return of middle-distance running to the test subjects.
Distribution of scores in Chengdu Physical Education High School Entrance Examination. From the WeChat public account of "Chengdu Release".
The boys' 1000-meter run and the girls' 800-meter run are considered by many students and parents to be the most difficult events. Approaching the exam, on social media and e-commerce shopping platforms, "nitrogen pump" drinks and carbon plate running shoes, which claim to be able to quickly improve the performance of middle- and long-distance running, have become popular, calling themselves pre-test drinks and pre-test "artifacts". Are these "plug-in" equipment suitable for junior high school students? The reporter interviewed experts in relevant fields for interpretation.
Nitrogen pump ≠ "artifact", and its efficacy is analogous to caffeine
It is advisable to use a sports nutrition product with a clean formula that is clearly effective
On an e-commerce platform, search with "physical examination artifact" as the keyword, and among the recommended products that pop up, drinks with the word "nitrogen pump" occupy multiple product recommendation positions. Click on its product link, and expressions such as "applicable to important physical test assessment competitions" and "igniting the state to help physical examination" are bolded and red. Contact the customer service staff of one of the "nitrogen pump" products, and the other party said that the product has the effect of improving muscle state and mental state, helping to improve muscular endurance and explosive power.
In order to prove the efficacy of the product, the customer service staff also sent screenshots of the relevant customers' chats, which provided information showing that there were reviews of customers who improved their performance after using them, and said that there were "no side effects". When the reporter asked that he needed to consult the physical education teacher before placing an order, the other party said, "The teacher will definitely not use it" and "It's better to buy one yourself and go back to test".
Screenshot of a recommended "nitrogen pump" drink on a social media
Does the "nitrogen pump" have the above-mentioned effects? Is it applicable to young students? The reporter consulted Ke Xianyong, a sports nutritionist who had served the national team at the Beijing Winter Olympics. "It's actually a sports nutrition complex that works like caffeine, but it's mostly stimulant. Ke Xianyong introduced, in addition to caffeine, nitrogen pumps will generally add arginine, niacin, creatine, β-alanine, vitamin B6, powdered sugar, etc., the ingredients are more complex, different brands will have different specific formulas, "nitrogen pump" itself is a kind of sports nutrition that will be used in medium and long-term endurance sports.
"However, at present, professional sports teams rarely use these kinds of drinks, because the ingredients of these complex formulas are complex and often contain doping prohibited ingredients. Ke Xianyong said that even if there are no stimulant ingredients in the ingredient list, some brands will encounter the problem of cross-contamination caused by mixing in the production line, and it is difficult to completely avoid the mixing of stimulant ingredients.
There are no side effects, which is an exaggeration of merchants. According to published research data, the use of stimulants may cause allergies, insomnia, anxiety, and can also have an impact on pubertal development, and irreversible damage to tendons, liver, and kidneys.
Screenshot of the "nitrogen pump" drink recommended by an e-commerce platform
"Doping ingredients are not conducive to the normal development and growth of teenagers, and the composition of 'nitrogen pump' drinks is more complex, for students and parents, the cost of learning is high, temporary use may lead to unadaptability, and it is difficult to choose a compliant brand, it is better to choose a cleaner and simple sports nutrition formula, such as conventional sports drinks, solid sports drinks, etc., the effect is also much more reliable. Ke Xianyong introduced.
"In addition to normal energy replenishment and physical arousal, the rational use of sports drinks and sports nutrition foods can also act as a psychological placebo. Of course, the most important thing is daily exercise and a good attitude, it is not realistic to significantly improve grades in a short period of time, students and parents should do what they can, and it is not recommended to suddenly change students' daily recipes and nutritional supplement plans. Ke Xianyong prompted.
Don't overly pursue the "black technology" of running shoes
Experts warn that a comfortable aerobic running habit is even more important
In addition to the drinks in the mouth, the running shoes under the feet are also the battlefield for large and small brands to compete for customers. On e-commerce platforms, running shoes for students taking the sports high school entrance examination often carry the keyword "carbon plate", and words such as "full-palm carbon plate" and "ultra-light carbon plate" emphasize the advanced technology. In the opinion of the interviewed professional middle-distance running coaches, developing a comfortable aerobic running habit suitable for their own rhythm before the test is more conducive to sports performance, and running shoes only play a role in assisting runners.
"Studies have shown that the right racing shoes can help increase speed by about 2 to 3 percent. Gu Ming, a professional middle-distance running coach, explained that a suitable pair of running shoes is helpful for candidates' athletic performance, but there is no need to pursue so-called "black technology" such as "carbon plates" excessively, the key is to suit themselves. "It is recommended to use big-brand racing shoes that fit the foot shape. Racing shoes should be further subdivided into different track products such as highway venues and plastic venues, and parents and students should still choose according to their own needs and specific examination venues, and do not impulsively place orders because of the introduction of shopping guides. ”
Screenshot of the recommendation of "carbon plate running shoes" on a social media
Gu Ming introduced that the application of carbon plate technology to running shoes can help reduce the weight of running shoes, and have the ability to rebound and push, reducing energy loss. "At present, carbon plate technology has developed to a mature stage. Compared with domestic sneaker brands, the gap between them is relatively small, and in our running circle, there is no situation where one brand is significantly ahead of other brands. ”
Similarly, Wang Guang, a former middle-distance runner with a seven-year career experience and current middle-distance running coach, has a similar opinion. He said that the first test of middle-distance running is the cardiopulmonary ability and endurance of candidates, and parents do not have to follow the trend to choose the corresponding running shoes because some other people's children run fast. "At present, we have learned that the track of the sports high school entrance examination is mainly a plastic field, and the test can choose shoes with better stability and grip, and we must do a good job of adapting to wearing shoes before the test to avoid temporary changes of shoes affecting the results. ”
"If the foundation is deviated, it is not recommended to conduct high-intensity training before the exam, and it is more important to develop the habit of comfortable aerobic running than shoes. Gu Ming also suggested that candidates can adhere to a moderate 3-4 km aerobic running habit for a period of time before the test, and need to maintain even breathing on the way. "It's important to keep exercising outside of school. Now that the exam may be relatively close, if there is only about a week or two before the exam, it is also recommended that candidates move to develop an aerobic running habit. ”