Swimming safety knowledge in summer
First, swimming safety points
1, don't go swimming alone, don't go swimming in places that don't know the water situation or are dangerous and prone to drowning accidents, and don't go swimming in rivers, lakes and reservoirs without permission.
2. Be clear about your physical health. Usually, limb cramps are not suitable for swimming or don't swim in deep water.
Don't be too hungry and full when swimming. Don't go into the water for an hour after a meal to avoid cramps.
4. Exercise before entering the water. If the water temperature is too low, wash your body with water in shallow water first, and then swim in the water after getting used to the water temperature.
5. Be self-aware of your water quality. Don't try to be brave after you get into the water. Don't dive and snorkel rashly, and don't fight with each other to avoid drowning and drowning. Don't swim in rapids and whirlpools, and don't swim after drinking.
6. If you suddenly feel unwell during swimming, you should immediately go ashore to rest or call for help.
7. Before diving, make sure that the water depth here is at least 3 meters, and there are no weeds, rocks or other obstacles underwater. It is safer to enter the water with your feet first.
Second, how to prevent lower limb cramps when swimming?
1. Be sure to warm up before swimming.
2. Consider your physical condition before swimming. If you are too full, hungry or tired, don't swim.
3. Dip some water in your limbs before swimming, and then jump into the water. Don't jump into the water at once.
4. If you have chest pain while swimming, you can press your chest hard and wait for a little better before going ashore; When you have abdominal pain, you should go ashore. You'd better drink some hot drinks or soup to keep warm.
Three, hand and foot cramps self-help methods
1. If your fingers cramp, you can make a fist with your hand, then open it hard and do it several times quickly until the cramp is eliminated.
2. If the calf or toe cramps, first take a breath and float on the water, hold the toe of the cramped limb with the hand on the opposite side of the cramped limb, and pull it in the direction of the body. At the same time, press the knee of the cramped limb with the palm on the same side to help the cramped leg straighten.
3. If the thigh cramps, it can also be solved by lengthening the cramped muscles.
Four, the treatment of water in the ear when swimming.
1, one-legged jumping method: the affected ear is downward, and the water flows downward from the external auditory canal by the gravity of water.
2, external auditory canal method: you can press the tragus continuously with your palm or pull the auricle with your fingers; Or repeatedly open your mouth and move the temporomandibular joint, which can make the skin of the external auditory canal move up and down, left and right, or change the stability of the water barrier and pressure, so that water can flow out of the external auditory canal.
3, external auditory canal cleaning method: gently probe into the external auditory canal with a clean fine cotton swab, once you touch the water barrier, you can suck out the water.
Matters needing attention in swimming in summer
There are many precautions for swimming in summer, which should be considered from many aspects:
1. It is not advisable to swim after meals and drinking.
2. Open wounds, skin diseases and eye diseases are not suitable for swimming.
If you catch a cold, get sick, feel unwell or weak, you are not suitable for swimming.
Thunderstorm weather is not suitable for swimming.
The water temperature is too low and too cold to swim.
6. Don't make too many jokes with your companions when swimming.
7. Don't go into the water, especially in the wild.
8. Don't swim when the wind and waves are too strong and the lighting is not good.
9. Don't swim or dive in unknown waters.
10. The water is shallow and there are too many people to dive.
1 1. You should swim in qualified places with lifeguards.
12. Warm up before launching.
13. Take all launching equipment, and be sure to wear goggles.
14. Don't panic, don't mess in the water. If you have a cramp, please keep calm and drift backwards.