Fitness does not advocate summer dog days. Exercise is a good thing, it can exercise, but it is not recommended to exercise in very hot weather, especially for people with physical diseases. The following fitness sharing does not advocate summer dog days.
Fitness does not advocate summer training in dog days. 1 The higher the temperature, the more people deliberately increase the amount of exercise, thinking that the fitness effect will be better. According to Professor Zhao from the School of Physical Education of a university in Beijing, those who blindly believe in "summer training in dog days" seem to be abusing themselves, not exercising at all. Exercise for a long time in hot weather, and the body temperature rises, which is easy to cause heatstroke.
Fitness on a hot day, you can try it if you want to exercise your will. Generally speaking, bodybuilders don't have to joke about their health. Professor Zhao once rode his bike to Xiangshan in the scorching sun, and he drank all four bottles of water 40 miles away. Only when he came back did he know that the temperature had exceeded 40℃ that day. "At that time, I was so hot that I wanted to give up, but I still kept myself going." However, Zhao Jisheng, who has been engaged in sports for many years, still believes that doing such strenuous exercise is not good for his health in such hot weather. Fortunately, he is in good health, otherwise there will be problems. Even if you exercise your will, you should do what you can.
Professor Zhao said that in summer, it is best to control the daily exercise time within 30 minutes, and replenish 500 ml of water within 30 minutes after exercise. The best drink is light salt water. After exercise, eating some fresh high-quality protein foods with low fat content such as fish, shrimp, chickens and ducks, or eating some vegetable protein foods such as tofu and bean products will have a good effect on relieving exercise fatigue.
Fitness does not advocate summer training dog days fitness 2 What is summer training dog days?
It means to exercise in hot weather in summer.
Since ancient times, our ancestors have taught us to practice "Three or Nine Days in Winter, Xia San Days", because three or nine days are the coldest and hottest times of the year. Exercising in cold winter and hot summer can not only keep fit, but also enhance our adaptability to extreme weather such as cold and hot.
In addition, there is a layer of spiritual connotation: cultivating people's strong will, not afraid of cold and heat. Therefore, strong-willed fitness experts abide by the Millennium ancient training, regardless of the cold winter and hot summer, they will continue to exercise.
The dog days are between the light summer heat and the heavy summer heat. From mid-July to early August in the solar calendar, it is the hottest, wettest and sultry day of the year.
After falling into the sky, the surface humidity becomes higher, and more heat is absorbed and less heat is released every day. The time when the surface heat accumulates and reaches the peak value is called "three volts".
The hot summer is also the season of high incidence of cardiovascular and cerebrovascular diseases. The reason for this is the following：
1, when the outside temperature rises, people's body temperature will also rise accordingly, subcutaneous blood vessels will expand, subcutaneous blood flow will increase significantly than usual, blood flowing back to the heart will also increase significantly, and the burden on the heart will increase. In addition, the increase of body temperature and the enhancement of sympathetic nerve excitability lead to the acceleration of heart rate, which further increases the burden on the heart.
2, the temperature rises, causing people to sweat more. If you can't replenish water in time, it will lead to the increase of blood viscosity and easy to form thrombus. Increased sweating will also lead to electrolyte disorder, which will lead to arrhythmia.
There are not only "barbecue mode" but also "sauna mode" in summer. In sauna weather, the air humidity increases, the air pressure is low, and the oxygen content in the air decreases, resulting in insufficient oxygen intake.
Therefore, patients with heart diseases such as coronary heart disease often feel chest tightness and shortness of breath in this sauna day, and in severe cases, there will be cardiac insufficiency and even acute myocardial infarction.
In hot summer, everyone can't live without air conditioning. As we all know, people frequently switch between hot summer and cool environment, and the change from cold to hot is also a great challenge to our cardiovascular system, especially for middle-aged and elderly people with decreased vascular elasticity and arteriosclerosis.
In summer, the days are long and the nights are short, and the nightlife is richer than other seasons. Because of the hot weather, it is easy to be agitated, which further affects the quality of sleep. Insufficient rest is also one of the important reasons for heart attacks.
To sum up, extreme weather like March 9 and dog days has been a great test for our cardiovascular and cerebrovascular systems. If you go against the trend and strengthen exercise, the result may be counterproductive.