Those who know how to swim also need to pay attention to avoid water accidents
Summer is coming, which is the time when beach trips are chosen by many people to cool off and relax. Not only recently, but many years ago, river areas have always been risky for people living around this place, especially those who have a habit of bathing in rivers, seas, and ponds. , which includes children.
A heartbreaking truth is that among the victims of drowning, those who know how to swim, even very well, still cannot escape the “scythe of death”. Therefore, the ability to anticipate risks to avoid them as much as possible is extremely necessary and urgent. So what is the cause of drowning in the sea?
1. Don’t swim too hard
Cramps when swimming is a very dangerous phenomenon, is a sudden muscle spasm, causing severe pain, difficulty moving. Cramps occur quite often when swimming or bathing, it not only causes severe pain, restricts movement, but is also life-threatening. Cramps can happen to anyone, even those who are good at swimming.
People who are at risk when swimming because cramps are often caused by not doing a good warm-up before swimming; using excessive force when swimming; The body does not get enough calcium.
Cramps are very common and extremely dangerous for those who:
– New swimmers: If swimming technique is not good, when entering the water, because there is no good balance on the water surface due to poor buoyancy, you will have to kick very hard and have to bend your knees a lot. This takes a lot of effort, puts extra strain on your leg muscles, and makes you more prone to cramping while swimming. If you swim in cold water, cramps are more likely to occur.
– People who do not regularly exercise:
The fact that you only go swimming once in a while makes your body work a lot to stay afloat. In particular, bodybuilders are more prone to cramps because of the heavy muscle mass, so the body is easy to sink. Therefore, having to exercise a lot to float makes the body quickly tired and prone to cramps. In particular, the elderly are the people who especially need to pay attention to this phenomenon. In addition, subjects with diabetes, strong heart often have peripheral artery disease, which causes blood flow to the legs to decrease, and also often experience cramps when swimming.
– People who practice with high intensity:
It is surprising that people who are regularly active still have this risk. However, the simple reason is that the body has not yet adapted to a large amount of exercise and because lactic acid is stagnant during high-intensity swimming effort, making you prone to cramps when swimming.
2. Don’t go near streams that are far from the shore
A rip current is a strong current that flows from the shore toward the sea. When the waves hit and bring the sea water to the shore, but when the sea water is continuously brought to the shore, they gather into a current that goes back to the sea. The offshore current has the shape and size of a strong current with a width of about 15–30 meters, a length of several tens of meters from the shore, sometimes up to 100–150 meters depending on topographical conditions, every time. This backflow can be stable throughout the month/year. However, they can also continuously change every few hours.
Care should be taken to pay attention and stay away from currents far from the shore when swimming in the sea.
Offshore currents are the most dangerous “death” in beaches because receding currents will pull people away from the shore, no one can swim against the current to swim to shore, even those who know how to swim. You will also drown from exhaustion if you try to swim against the current. The speed of the sprint is greater than the swimming speed of an Olympic athlete – in 1 minute can suddenly sweep away about 100 m.
The water surface where the current is far from the shore is usually calm, there are no waves, so people mistakenly think it is a safe place and choose that place to bathe instead of places with waves. To limit unfortunate accidents, people should take time to identify the currents far from the shore before going swimming. Offshore currents are usually darker in color because the water is usually deeper there; Where the current is far from the shore, the water surface is calm, often with small waves; Occasionally, debris or sponges can be seen rising to the surface of the offshore current, drifting into the sea.
When unfortunately swimming into this water, we need to calm down, absolutely do not swim against the current. Just relax your body, try to swim parallel to the water and wait for the silvery sea waves to swim against, then the waves will help bring you to the shore. If you are weak or do not know how to swim, you should float your body, raise your hand to signal for help.
3. Do not swim right after drinking alcohol or beer
Summer comes, the need for refreshments, participating in parties and using alcohol and beer is extremely popular. The feeling of dryness and heat in the body after drinking alcohol makes many people unable to control the feeling of wanting to go to the lake, river or sea to swim. However, alcohol plays a role in about 70% of drowning cases in adolescents and adults.
Alcohol, beer contains many stimulants, so it easily inhibits the activity of the liver, consuming a large amount of glucose in the body. Using alcohol and beer before bathing will affect your balance, judgment and handling of dangerous situations, and this effect will increase under the influence of hot weather.
Swimming right after drinking alcohol will cause blood sugar to not be replenished in time, causing blood vessels to constrict, leading to colds; More severe can cause rupture of blood vessels, which is life-threatening. Many cases after drinking alcohol lead to high blood pressure causing stroke.
In short, even good swimmers should absolutely not bathe or swim after drinking alcohol, to prevent the risk of drowning.
Some other notes:
– Before going to the beach, you should exercise your whole body, stretch the muscles and joints in the body for at least 10-15 minutes to warm up the body, avoid fatigue.
– Do not suddenly go swimming, do not swim for too long, swim at dawn or dusk because it can lead to the risk of cramps due to hypothermia, cold infection, hypoglycemia.
– While swimming, if you feel muscle fatigue, slow down, swim close to the shore, near the rescue area, then relax your body for a few minutes before going ashore. If you feel cold, you have to go ashore immediately, find a sheltered place to gradually warm your body again, you can drink some cinnamon tea, hot ginger tea.
– Find ways to signal and notify others when there are many signs of being under water.
– When you have a cramp, absolutely do not struggle, but need to float, relax your whole body, lean back down to the water, your legs are stretched out, your hands are raised to your straight head, and your hands are up on your face. Let the person float on the water, then calmly wait for someone to come to help.
at Blogtuan.info – Source: cafebiz.vn – Read the original article here
