Swimming is a very beneficial activity, but it is also dangerous. To ensure safety, we should do the following:
1, swimming requires a physical examination. People suffering from heart disease, hypertension, tuberculosis, otitis media, skin diseases, severe trachoma and various infectious diseases are not suitable for swimming.
2. Choose the swimming place carefully. To swim in rivers, lakes and seas, we must first understand the water conditions. Waters with undercurrents, eddies, silt, rocks and aquatic plants are not suitable for swimming. There are many ships coming and going, and the waters in the polluted and schistosomiasis endemic areas are not suitable for swimming.
3. Prepare for the exercise before launching. You can run, do exercises, exercise, and wash your trunk and limbs with a small amount of cold water, so that your body can adapt to the water temperature as soon as possible and avoid dizziness, palpitation and cramps.
When you are full or hungry, don't swim after strenuous exercise and hard work.
5. Don't dive when the underwater situation is unknown.
6. If you find someone drowning, don't rush into the water for rescue. You should call adults out for help.
When you have an accident while swimming, you must know:
1. Be calm in case of accident. Don't panic. You should try to save yourself while seeking help from others.
2. When blood is drawn during swimming, if you are close to the shore, you should immediately get out of the water and massage on the shore; If you are far away from the shore, you can take a swimming posture, float on the water as far as possible, and massage the limbs of the tray in order to relieve it; If self-treatment doesn't work, you should try to paddle ashore with unwashed limbs.
3. When swimming with aquatic plants, you should swim back from the original road in a backward posture. In case of being entangled in aquatic plants, don't jump around You have to float back to the surface, paddle with one hand, untie the weeds with the other hand, and then swim back the way you came.
4. When swimming in the whirlpool, you can inhale and dive into the water, swim hard to the outside, swim out of the center of the whirlpool and then surface.
5. When swimming, if you are exhausted and overtired, you should stop swimming, swim back to the surface, recover your physical strength, and return to the shore in time after your physical strength is restored.
In swimming, you need to master these safety knowledge:
1, don't inhale through your nose. Breathing in through the nose when swimming is the most likely cause of suffocation. If you choke on water, first open your mouth and take a deep breath. Even if you drink a few mouthfuls of water, you should open your mouth and not gasp through your nose. Children are often afraid of drinking water. In fact, for beginners, drinking more saliva is better than choking. World swimming champions sometimes have to drink in the pool.
2. Don't play around the swimming pool. The swimming pool is mostly surrounded by mosaic ground, where swimmers walk back and forth, leaving a lot of water and the ground is very slippery. Run, chase and fight on it. Once you fall, you will be in danger.
Don't dive backwards. Some students like to dive handstand by the pool, thinking it is exciting, but they don't know that there is danger hidden inside. When diving backwards, the body leans slightly, and the chin is easy to break when it hits the pool water.
4. Prevent leg cramps. Beginners swimming, panic, plus cold water, soaking in the water for a long time, may have leg cramps. Don't be too nervous at this time. Stop swimming immediately and float on your back. One of the effective ways to prevent cramps is to get ready before swimming. Warm-up activities include moving the joints of the head, neck, shoulders, arms, waist and legs, hands and feet. Sometimes parents can also splash some water on their children's limbs to let them gradually adapt to the water temperature and then swim in the water. You can also drink some light salt water in advance.
5. Don't leave your parents' sight. We are all young and have no idea about safety. Even if we learn to swim, we still have to swim with our parents and watch them. In this way, when parents notice something bad, they can take immediate action.
6. Don't swim in rivers, lakes, seas and reservoirs. Try not to swim in rivers, lakes, seas and reservoirs. Every year, there is a tragedy of drowning because of swimming alone in these places. The water in these places seems calm, but because there is a vortex hidden underwater, it may be swept away by the vortex as soon as it enters the water. If you want to go to these places, you should not only be accompanied by your parents, but also bring safety equipment such as floating and drifting. Those with poor swimming skills and insufficient physical strength should not get involved in the depths. Be more careful when swimming in places with unclear geographical environment. If there are obstacles underwater, it will be dangerous to hit hard things or get entangled in underwater things.
Let's keep these tips on swimming safety in mind and enjoy the coolness brought by clean water happily in this hot summer day.