First, swimming safety points
1. Don't be too hungry or too full when you go into the water. Don't go into the water for an hour after meals to avoid cramps;
2. Try the water temperature before entering the water. If the water is too cold, don't go into the water.
3. Swimming in rivers, lakes and seas must be accompanied by someone, not swimming alone;
4. Observe the swimming environment before launching. You can't swim here if there is a danger warning.
Don't swim in the canyon with unclear geographical environment. The water in these places is different in depth and cold, and obstacles may hurt people in the water, which is very unsafe;
6. 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;
7. When swimming in the sea, you should be parallel to the coastline. Those who are not skilled in swimming or lack of physical strength should not get involved in the depths. Make a mark on the coast, pay attention to whether you are washed too far, and adjust the direction in time to ensure safety.
Second, how to prevent lower limb cramps when swimming?
You must warm up before swimming.
You should consider your physical condition before swimming. If you are too full, hungry or tired, don't swim.
Before swimming, rub some water on your limbs and then jump into the water. Don't jump into the water at once.
If you have chest pain while swimming, you can press your chest hard and wait until it is better. When you have abdominal pain, you should go ashore. It is best to drink some hot drinks or soup to keep warm.
Third, the self-rescue strategy of swimming and drowning in summer
How to ensure the health and safety of swimming and avoid drowning? Unfamiliar with the water situation, rushing into the water can easily lead to life-threatening. Just in case.
Unfortunately, there was a drowning incident. According to experts, drowning people should not panic, but should remain calm and actively save themselves:
(1) For people with cramps in their hands and feet, if they have cramps in their fingers, they can make a fist with their hands, then open it hard and do it several times quickly until the cramps disappear.
Unless until;
(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 push hard.
Pull in the direction of the body, and at the same time press the palm of the same side on the knee of the cramped limb to help the cramped leg straighten;
(3) If the thigh cramps, it can also be solved by lengthening the cramped muscles.
Fourth, drowning first aid.
Drowning is a common accident. Drowning can lead to suffocation and hypoxia. If the heart stops beating, it is called drowning. If the heart keeps beating, it's called drowning.
The classification of "dying" is of great significance to estimate the condition and prognosis, but the treatment principle is basically the same, so it is collectively called drowning.
First aid method:
1. After the wounded are carried out of the water, the water, mud and dirt in their oral cavity and nasal cavity should be removed immediately, and the tongue of the wounded should be wrapped with gauze (handkerchief).
Pull out the exit, unbutton the button and neckline, keep the respiratory tract unobstructed, then pick up the waist and abdomen of the injured person, make his back face up and pour water head down.
Or pick up the injured person's legs, put his abdomen on the shoulders of emergency personnel, and quickly run over to pour out the accumulated water. Or the emergency personnel take a semi-kneeling posture and put the abdomen of the wounded.
On the leg of the first-aid person, make his head droop and flatten his back with his hands to pour water.
2. People who stop breathing should immediately carry out artificial respiration, and mouth-to-mouth blowing is generally the best. The emergency personnel are located on the side of the wounded, holding the chin of the wounded.
Hold the nose of the wounded, take a deep breath and slowly blow into the mouth of the wounded. When the chest is slightly lifted, relax the nostrils and press the chest with one hand.
Help exhale. Repeatedly and rhythmically (blowing 16~20 times per minute) until breathing resumes.
People with cardiac arrest should do chest massage first. Let the wounded lie on his back, put a hard board on his back, keep his head down and lean back. Emergency personnel are located at the first casualty.
Lie on your side, facing the wounded, with your right palm flat on the lower sternum and your left hand on the back of your right hand. Use the weight of the emergency personnel to push slowly, but not too hard.
If there is a fracture, press the sternum down about 4 cm, then loosen your wrist (don't leave the sternum) to reset the sternum, and repeat rhythmically (60 per minute
~80 times) until the heartbeat recovers.
Just in case.
Unfortunately, there was a drowning incident. According to experts, drowning people should not panic, but should remain calm and actively save themselves:
(1) For people with cramps in their hands and feet, if they have cramps in their fingers, they can make a fist with their hands, then open it hard and do it several times quickly until the cramps disappear.
Unless until;
(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 push hard.
Pull in the direction of the body, and at the same time press the palm of the same side on the knee of the cramped limb to help the cramped leg straighten;
(3) If the thigh cramps, it can also be solved by lengthening the cramped muscles.
Fourth, drowning first aid.
Drowning is a common accident. Drowning can lead to suffocation and hypoxia. If the heart stops beating, it is called drowning. If the heart keeps beating, it's called drowning.
The classification of "dying" is of great significance to estimate the condition and prognosis, but the treatment principle is basically the same, so it is collectively called drowning.
First aid method:
1. After the wounded are carried out of the water, the water, mud and dirt in their oral cavity and nasal cavity should be removed immediately, and the tongue of the wounded should be wrapped with gauze (handkerchief).
Pull out the exit, unbutton the button and neckline, keep the respiratory tract unobstructed, then pick up the waist and abdomen of the injured person, make his back face up and pour water head down.
Or pick up the injured person's legs, put his abdomen on the shoulders of emergency personnel, and quickly run over to pour out the accumulated water. Or the emergency personnel take a semi-kneeling posture and put the abdomen of the wounded.
On the leg of the first-aid person, make his head droop and flatten his back with his hands to pour water.
2. People who stop breathing should immediately carry out artificial respiration, and mouth-to-mouth blowing is generally the best. The emergency personnel are located on the side of the wounded, holding the chin of the wounded.
Hold the nose of the wounded, take a deep breath and slowly blow into the mouth of the wounded. When the chest is slightly lifted, relax the nostrils and press the chest with one hand.
Help exhale. Repeatedly and rhythmically (blowing 16~20 times per minute) until breathing resumes.
People with cardiac arrest should do chest massage first. Let the wounded lie on his back, put a hard board on his back, keep his head down and lean back. Emergency personnel are located at the first casualty.
Lie on your side, facing the wounded, with your right palm flat on the lower sternum and your left hand on the back of your right hand. Use the weight of the emergency personnel to push slowly, but not too hard.
If there is a fracture, press the sternum down about 4 cm, then loosen your wrist (don't leave the sternum) to reset the sternum, and repeat rhythmically (60 per minute
~80 times) until the heartbeat recovers.