Summer swimming precautions

Swimming can not only help the body to shape a beautiful body, but also enhance the function of the cardiovascular system, enhance physical fitness, improve coordination, and swimming is the lowest rate of strain and injury physical activity. The summer weather is hot, like to go swimming more and more friends, although swimming has so many benefits, but there are some precautions we can not ignore Oh.

Prepare well before swimming

Do not do preparatory activities before swimming is very dangerous, because the pool water temperature is usually lower than the body temperature, do not do preparatory activities on the water, in the stimulation of the temperature difference, the leg muscles are easy to spasm, so easy to drowning events, before entering the water must do preparatory activities, and then wet the body with water, gradually adapt to the water temperature, slowly down to the water, adapt to a few moments before exercise.

Just after eating should not swim

Just after eating, the gastrointestinal burden increased, blood filling in the digestive system, other systems of blood relatively reduced, at this time into the water, breathing will make the chest cavity expanded, diaphragm tension, abdominal muscle contraction, and the abdominal cavity will shrink, the stomach and intestines by the abdominal wall and water extrusion, easy to lead to the reflexive overflow of food in the stomach, the lighter will burp when swimming, the heavier can make the food in the stomach vomit, eat too much then may also make The vomit may choke into the trachea and cause suffocation.

Swimming after a meal precautions

Should not swim immediately after a meal, should first rest for an hour, even when resting during swimming, should not add too many meals, if the swimming time is too long, physical exertion, need to add meals, can be based on high-calorie food, such as chocolate, candy and other small food, if there is nausea in the water, regurgitation and other symptoms, should immediately go ashore to rest; if vomiting occurs, should be changed to tread water position, vomit, so as to avoid vomit back into the organs. To avoid vomit back into the organs, choking, choking and other dangerous situations.

Attention to eye protection before swimming

Public swimming pool water if the disinfection system is not perfect, the water quality is not up to standard, it is easy to lay a hidden danger for the spread of some infectious diseases, including common eye diseases, such as acute conjunctivitis, Chlamydia trachomatis, these are eye diseases that can be transmitted through the pool water, towels, hands contaminated with viruses, so before swimming can first point a drop or two of pharyngitis water to prevent infection, in addition, it is best to wear swimming glasses.

Prevent ear infections when swimming

If water enters the ears during swimming and the water in the ear canal is not removed in time after swimming, it can easily lead to ear infection and otitis media, which can seriously lead to pus in the ear canal and hearing loss. To prevent water in the ear canal, it is best to wear ear plugs for protection, and you can also put 2 to 3 drops of 1% phenol glycerin in the outer ear canal before swimming to avoid water in the ear canal.

Determine the number of swimming sessions according to your body type

The number of swimming sessions per day should be determined according to your physical condition. People with good physical condition can swim once or twice a day for an hour or so, but not for a long time, and you can rest for a while after swimming.

Swimming leg cramps treatment

The phenomenon of calf cramps easily occurs when swimming, when the phenomenon of cramps occurs in the water to remain calm, do not panic, can call for help, but also self-help, self-processing method is to take a breath, so that the body floats on the surface of the water, with the opposite hand of the cramped leg to hold the toes of the cramped side, try to hook the foot, and pull hard in the direction of the body, while using the same side of the palm of the hand to push the knee of the cramp back, the cramped leg straight, can be lifted. Then immediately go to shore to rest, dry your body, continue to massage the cramp area, and pay attention to keep warm.

Swimming time should not be too long

People in the water is easy to dissipate heat, too long in the water, the heat generated by the body is lower than the heat emitted, thermoregulation function will be damaged, which is the skin in the arteries will contract, small vein expansion, so that blood stagnation in the subcutaneous veins, resulting in skin bruising, black lips, goose bumps on the body, and even spasms; in addition, most of the tap water supply systems used in cities use chlorine disinfection, swimming When the skin is in contact with chlorine, these substances will evaporate from the water and be directly absorbed by the skin, and if the time is too long, it is easy to suffer from some diseases.

Don't expose yourself to the sun after swimming

If you are exposed to the sun for a long time after swimming, it will make your body appear sunburned or cause acute dermatitis. If you are swimming outdoors, you should rest under an umbrella or shade to prevent sun spots, even if you are exposed to the sun for a short time, you should also pay attention to the sunscreen products.

Don't swim after strenuous exercise

Just after strenuous exercise, the human heart rate and blood flow rate are relatively fast, this time to go swimming again, will lead to an increased burden on the heart, and because just after exercise, the human body temperature rises, directly into the water will make the body temperature drop sharply, resulting in a weakened resistance, causing colds, laryngitis and other diseases.

Do not swim immediately after drinking

After drinking, the body surface microvascular expansion, swimming in the water will make the blood flow back quickly, resulting in a sharp increase in the burden on the heart, alcohol can inhibit the normal physiological function of the liver, preventing the conversion of glucose and reserves in the body, and swimming will consume a large number of glucose reserves in the body, when the supply of glucose is insufficient, people are prone to dizziness because of hypoglycemia, fuzzy consciousness, resulting in accidents.

Women should not swim during menstruation

Swimming during menstruation can easily lead to bacterial invasion of the uterus, fallopian tubes and other parts of the body, causing infection, which can lead to menstrual disorders, excessive menstrual flow, prolonged periods and other menstrual discomfort, as well as gynecological inflammation.