The benefits of swimming
Swimming can effectively consume body fat.
Especially swimming for a long time, because the difference between water temperature and body temperature is about 10OC, it will accelerate the heat dissipation of human body and increase consumption. Many people feel hungry or hungry after swimming. Moreover, swimming can effectively control appetite and is a good way to lose weight. Moreover, swimming consumes more calories than long-distance running and gymnastics, which is good for fat consumption. People who want to lose weight may wish to choose this way.
Swimming also has the effect of beauty and skin care.
Swimming is carried out in water, and long-term high humidity environment is beneficial to the wetting and maintenance of the panel. Swimming can make the panel have enough moisture to maintain, and it can also have the benefit of * * * effect on the panel, which is conducive to the protection of the panel.
Swimming can also increase the function of the respiratory system.
When swimming, people's chest and abdomen are under the pressure of water. When swimming, the chest pressure is 120- 150 Newton, which makes breathing difficult. Long-term swimming exercise can increase breathing depth, enhance vital capacity and enhance physical fitness. This is a very healthy exercise, suitable for many people.
Swimming exercise can enhance physical fitness.
It can improve the adaptability to water temperature and air temperature and enhance physical fitness. Many children with asthma can effectively enhance their physique and cold resistance through swimming, and can also reduce the number of asthma attacks. It is a good method for pregnant women with asthma.
It can be seen that swimming can not only strengthen the body, but also play the role of beauty and skin care, because it can keep the panel moist, replenish water in the water, and also play the role of * * * *. Swimming can also consume points in the body, which is a good choice for people who want to lose weight. Swimming has so many benefits, are you still willing to turn a blind eye?
Eight points for attention in swimming
Get ready before swimming.
It is very dangerous not to warm up before swimming, because the water temperature in the swimming pool is usually lower than the body temperature. If you don't warm up, you will get into the water. Under the action of temperature difference, your leg muscles are prone to spasm and drowning. Be sure to do warm-up activities before entering the water, then wet your body with water, gradually adapt to the water temperature, slowly enter the water, and then exercise after a while.
It's not suitable for swimming just after dinner.
Just after eating, the gastrointestinal burden becomes heavier, the blood fills the digestive system, and the blood in other systems is relatively reduced. At this time, when entering the water, breathing will enlarge the chest, make the diaphragm tense, the abdominal muscles contract, and the abdominal cavity will contract. The stomach and intestines are squeezed by the abdominal wall and water, which may easily lead to food reflex overflow in the stomach, hiccups when swimming, or vomiting in the stomach after eating too much.
Precautions for swimming after meals
It is not advisable to swim immediately after meals. You should rest for an hour first. Don't eat too much even if you have a rest while swimming. If you swim too long, you need to eat more. You can mainly eat high-calorie foods, such as chocolate and candy. If you have symptoms such as nausea and nausea in the water, you should immediately go ashore to rest. If vomiting occurs, the vomit should be spit out in the posture of treading water, so as to prevent the vomit from flowing back into the organs and causing suffocation, choking water and other dangerous situations.
Pay attention to protect your eyes before swimming.
If the disinfection system of swimming pool water is not perfect and the water quality is not up to standard, it is easy to lay a hidden danger for the spread of some infectious diseases. Among them, eye diseases, such as acute conjunctivitis and chlamydia trachomatis, can be spread by swimming pool water, towels and virus-infected hands, so you can order one or two drops of pharyngitis water to prevent infection before swimming, and it is best to wear swimming glasses.
Watch out for ear inflammation when swimming.
If water enters the ear during swimming, the water in the ear canal will not be removed in time after swimming, which will easily lead to ear canal infection and otitis media, which will seriously lead to pus in the ear canal and hearing loss. In order to prevent water from entering the ear canal, it is best to wear earplugs for protection. You can also drip 2 ~ 3 drops 1% phenol glycerin into the external auditory canal before swimming to prevent water from entering the ear canal.
Determine the number of swimming according to physical fitness
The number of times you swim every day depends on your physical fitness. People with good health can swim once or twice a day for about an hour each time. They can't swim for a long time. After swimming for a while, they can have a rest before continuing.
Treatment of leg cramps during swimming
Leg cramps are prone to occur when swimming. When a cramp occurs in water, you should keep calm. Don't panic. You can call for help or save yourself. The way to deal with yourself is to take a breath first, let the body float on the water, hold the cramped toe with the other hand of the cramped leg, hook the foot as much as possible, and pull hard in the direction of the body. At the same time, push the cramped knee with the palm of the same side, straighten the cramped leg, and then immediately go ashore to rest.
Swimming time should not be too long.
People dissipate heat easily in water. If they stay in the water for too long, the heat generated by the body is lower than the heat emitted, and the thermoregulation function will be destroyed. This is because the arteries in the panel will contract and the venules will expand, so that the blood will stagnate in the subcutaneous veins, resulting in blue face, black lips, goose bumps and even spasms. In addition, the tap water supply system used in most cities is disinfected with chlorine. When swimming, the panel comes into contact with chlorine, which will evaporate from the water and be directly absorbed by the panel. If the time is too long, it is easy to get some diseases.
What do I need to prepare to go to the swimming pool?
With swimming cap
This is more important. You are not allowed to swim in the indoor swimming pool without a swimming cap. On the chair on the shore, stood a man holding a lifeguard flag. But after several years of swimming experience, I have never seen ya save anyone, but I have repeatedly reminded those who don't wear hats not to expose their thick hair in public. In addition, some caring lifeguards will prepare an ordinary swimming cap for those who always forget to bring their hats. Of course, I can tell you responsibly with my personal experience, don't have any hope for the shape of this hat, and it is extremely forbearing not to prepare a green one for you; Don't have any illusions about whether this hat fits your head size. Generally speaking, this kind of thing, which needs to be kept on the head honestly and has three rules on hair, can cover the upper part of the face when pulled down, so that it can be used by bank robbers with a little effort.
Bring a towel.
Of course, it is necessary for you to take a towel to wipe your body in the dressing room, but there are often inexperienced uncles who wrap a dark gray towel around their thick necks, just like in a jiaozi pot for ten thousand people, oh no, an open-air swimming pool for ten thousand people. While swimming, I wiped my face with a towel, and sometimes I rubbed my body happily. Then I watched a few purple mud children spinning, floating and melting in the blue pool water with satisfaction, and finally my prosperity was wiped out. This will immediately discourage you from coming to this swimming pool again.
Remember to bring glasses.
This thing is flexible to use. In the swimming pool where the population density is no less than that of Spring Festival travel rush, if you swim in the pool until it is dark without diving goggles, you will probably hit seven people after swimming for five meters, be kicked with ten legs and spread your hands out. If you are unlucky, you will sometimes be shuttled under your stomach. If you wear a diving mirror, it may not be of any use to change this situation, but you can take the initiative in your own hands. You may have had a head-on collision with an aunt. You can choose a duck to turn over in front of the girl on the right, and then have a close contact. It turned out that a strong man with developed pectoralis major was about to kick the door in the middle. You can let go of Foshan's shadowless feet in an instant, and then be scratched gently by another sister's delicate little hand. After all, although injuries are always inevitable, warmth and fragrance are always worth it.
Please follow the crowd and don't swim sideways.
There are many serious swimmers in the swimming pool. Most people, whether they are dried ducks or half-tones, whether they are chic freestyle or authentic dog planing, always swim in the same direction. If you have to storm the world, do vertical movement with big troops. Please be prepared to be stared at by countless people and booed by the lifeguard uncle-of course, if your psychological quality is good enough to drive backwards on the streets of Shanghai without changing your face or heartbeat, forget it.
Please enter the water in a landing position.
Even if you are as light as a swallow, don't give yourself a horizontal speed like the most common ball in high school physics, and then enter the water by a flat throw route. I have seen too many people with spherical bodies bend their legs on the shore, with their fingertips pointing to their toes. Because Sun Yang enters the water, his feet exert their strength. The body that should have crossed a perfect arc and then obliquely inserted into the water suddenly stopped above the water, and then fell vertically into the swimming pool. The abdomen was slapped on the water, causing countless splashes, which was tantamount to detonating a deep-water bomb, and the swimmers around it turned their heads. So, please hold the swimming pool with your hands and enter the water. You can't go into the water without flowers. Just keep a low profile.