If you don't exercise, you will live five years less than your parents, and the average life expectancy will decrease for the first time in human history ... This is not sensational, but the conclusion released by the American Sports Medicine Association and the International Sports Science and Sports Council after a joint investigation on the lack of exercise among teenagers in China, the United States, Britain, Brazil, India and other countries, which runs counter to the expectation of China people that "the more they live, the longer they live".
Recently, the sudden death of college students in China has been reported from time to time. For example, on June 3, "Luoyang senior boys suddenly died playing tennis?" Tomorrow's 22nd birthday, May 27th, the sudden death of college students after running 1000m sounded the alarm. Although the reasons are different, they are all related to the lack of exercise in peacetime.
Recently, the American Sports Medicine Association and the International Sports Science and Sports Council jointly released their latest research conclusions, saying that the investigation on the sports situation of teenagers in China, the United States, Britain, Brazil, India and other countries in 20 12 found that the fitness expenditure of various countries increased, among which the per capita sports expenditure of Chinese mainland in 2030 was 67.5 US dollars, 4.5 times that of 2008; However, fitness activities in various countries are decreasing. In China, compared with 199 1 year, people's exercise has decreased by 45%, and it is expected to decrease by 5 1% by 2030. Lack of exercise has become a social problem.
Current situation: Only 19% students can exercise 1 hour every day.
Professor Zhu Lin, director of the Sports Physiology Teaching and Research Section of Guangzhou Institute of Physical Education and deputy director of the Physical Fitness Evaluation Research Center, found that it is very common for teenagers not to exercise every day. For example, a survey report on students' physical fitness in Guangzhou in 20 10 indicates that only 19% of students can get 1 hour of exercise every day.
Investigate its reason, Zhu Lin said, the composition of sports should be the trinity of community, family and school, but now students' sports mainly rely on the school's physical education class, and after school time is occupied by extracurricular remedial classes, watching TV and playing computer.
Lack of civic awareness. Students and parents don't know how much time they should exercise. What project do you choose? According to the recommendations of relevant American institutions, there should be at least 60 minutes of exercise every day, which should include moderate and high-intensity exercise, as well as exercise to enhance muscle strength and bone activity, three times a week.
The most direct effect of not exercising is growth and development. For example, obesity can lead to precocity, which means shortening maturity. In childhood, good and bad habits will be brought to adulthood. Therefore, lack of exercise from childhood increases their chances of suffering from certain diseases in adulthood, such as obesity, hyperlipidemia and diabetes.
In addition, when investigating the reasons why people in Guangzhou lack exercise, Zhu Lin found that the main reason is the lack of exercise paths and places, or the high cost of exercise. Walking into the free parks in Guangzhou, you can find that many people are exercising. If there is no sports equipment in the old city, citizens will naturally exercise less. Therefore, Zhu Lin suggested that the government should support the grassroots to establish more healthy paths and places.
Suggestion: It is safer and more effective to stick to skipping rope 10 minutes.
The American report has two suggestions on how to solve the problem of lack of sports: first, let children receive scientific physical education and engage in appropriate sports, and establish a positive concept of sports from an early age; Second, let sports become a part of everyone's daily life, advocate a healthy lifestyle and develop good exercise habits, so as to enter a virtuous circle of "sports change life"? That is, China has always advocated "national fitness".
Many people complain that they don't have the conditions or time to exercise. Professor Zhu Lin gives his own advice. She said skipping rope is safer and more effective, and it only takes 5~ 10 minutes to jump slowly. Then walk, and keep it between 10000 and 13000 steps every day. Third, brisk walking and jogging, 6 km/h brisk walking and 7 km/h jogging are all benign. However, it is not recommended for children with obesity to jump rope or exercise with heavy burden on their knees. Swimming and other water sports are better projects. Professor Zhu Lin's research on 1 1~ 14-year-old students found that a relatively simple way to record exercise intensity is to look at the heart rate. For ordinary children, keeping the heart rate between 125~ 160 during moderate intensity exercise proves that the exercise has reached the ideal intensity.
Case: There are 48 people in the class, and 8 people "don't move"
Lu is a student of Zhixin Middle School, and has just scored 660 points in the college entrance examination. He told reporters that eight of the 48 people in the class basically did not exercise, and stayed in the classroom all day, and their physical fitness was obviously not as good as others. Lu is a sports enthusiast. Class ends at 5 pm every day, and evening self-study begins at 6 pm. In this short hour, Lu will choose to exercise for a while according to the situation, and then wash and eat.
"Plus morning 15 minutes of class exercises, at the end of the day, I barely guarantee to exercise for an hour every day. But eight adults in the class only exercise once every two days. " ? Lu said that the lack of exercise led to obvious physical differences among students. There are eight people in their dormitory. One person has a cold, and many people will catch colds one after another.
People who often take part in sports are not only more cheerful, but also help to cope with nervousness. Lu knows this very well. He often participates in various sports competitions organized by the school, so he has experienced many times of nervousness and his heart is about to jump out. As a result, he admitted that he was used to it when he arrived at the college entrance examination. He took a deep breath to control his nervousness. Those students who sit in the classroom all day often complain about backache. After a day's study, they lack energy and slow thinking.
After returning to his home in Erheng Road, Yuancun, Lu found that there was no sports equipment, no sports ground and no sports partners in the community, so it was difficult to exercise. He had to run on Linjiang Avenue.