What are the details of exercise induced syncope? What causes syncope, which is common during exerci

Transient loss of consciousness during or after exercise, called exercise-induced syncope, is caused by a sudden ischemia of the brain and is more common in adolescents with low levels of training.

a) Causes. 1 Decreased cardiac output. For those who usually lack exercise, they suddenly participate in a larger amount of exercise, and their heart function cannot keep up with the needs of exercise for a while, coupled with the lack of training, uncoordinated movements, breath-holding, etc., resulting in a decrease in blood return.

Cardiac output is also markedly reduced, resulting in transient cerebral ischemia. And due to the lack of exercise, the body is less able to adapt to this situation, and it is more likely to faint.

2 Gravitational shock. For example, standing still for a long time, squatting for a long time and suddenly getting up, and suddenly stopping activities after running, etc., can reduce the blood return flow due to gravity, and cerebral ischemia can be formed.

b) Performance. First, there are prodromal symptoms such as general fatigue, dizziness, tinnitus, blackness in front of the eyes, and paleness, followed by loss of consciousness, sudden fall to the ground, and symptoms such as cold hands and feet, slow and weak pulse, decreased blood pressure, slow breathing, and miosed pupils. In mild cases, after falling to the ground, the brain is replenished with blood, so that the ischemia is eliminated, and they can wake up in a moment, but they still have dizziness, poor spirit, fatigue and other feelings after waking up.

c) Processing. When there is a prodrome, squatting or lying down for a short time to rest can avoid fainting. Those who have fainted should be made to lie down, with their heads down and their feet high, loosen their collars, pay attention to keeping warm, and do centripetal kneading and massage of the lower limbs.

Those who do not wake up can pinch or acupuncture acupuncture points such as Renzhong, Baihui, Yongquan, Hegu, etc., or smell ammonia, and generally wake up. If you stop breathing, you can do artificial respiration, and at this time, the head should be turned to one side, and attention should be paid to prevent sputum or vomit from obstructing.

Plug the throat. 4) Prevention.

1. Keep exercising to enhance your physique.

2 When standing for a long time, you should often move your lower limbs alternately, and do not stand up suddenly after squatting for a long time, but stand up slowly.

3.Don't stop after a sprint, keep jogging and take a deep breath.

4. Those who have been sick for a long time and are infirm should not participate in strenuous exercise for the time being.

Exercise-induced fainting.

1. Cause: During exercise, the blood supply to the brain is suddenly insufficient, and when it reaches a certain level, a temporary loss of consciousness occurs, which is called "motor fainting". Symptoms include paleness, cold hands and feet, slow breathing, dark eyes, loss of consciousness and fainting.

The main reason for this is that long-term strenuous exercise obstructs the blood flow from the limbs, or suddenly enters a state of intense exercise (such as sprinting, sprinting), or continues to exercise reluctantly under extreme fatigue, or stands up suddenly after a long time of squatting, or stops abruptly after sprinting, or hypoglycemia occurs during exercise on an empty stomach, etc., which can cause exercise-induced fainting.

2. Prevention and treatment: Usually participate in physical exercise to enhance physical fitness. When exercising, it is necessary to control the exercise load and prevent excessive fatigue.

If there is exercise-induced fainting, the patient should be placed on his back in time, with his feet higher than his head, and push from the calf to the thigh and heart. If breathing disorders occur, rescue respiration is performed. Patients with mild symptoms can be assisted by a companion to walk slowly, and assist in stretching exercises and deep breathing.

The main reason is that the exercise time is too long, and then the lack of nutrition or anemia, this situation will appear this dangerous kind of dizziness, so we must pay attention.

Exercise syncope may be due to a cardiac disorder or it may be caused by an inadequate blood supply to the brain.

Because after exercise, the blood cannot return to the heart for a while, resulting in insufficient blood supply to the brain, so it can lead to syncope.

Fainting is caused by the need to consume a lot of energy during exercise, resulting in insufficient blood supply in the body, resulting in fainting.

Exercise-induced syncope refers to a sudden, transient loss of consciousness caused by temporary cerebral insufficiency or changes in blood chemicals during or after exercise, accompanied by falls.

The most immediate danger of exercise-induced syncope is a sudden fall, which can cause problems that can be large or small, and can even be fatal. For example, brain damage caused by a head hit with a sharp object, or a fall from a straight height, or a severe collision with another weak part of the body, can cause very serious physical trauma.

In addition, there are many types of exercise-type fainting, some children are not a big problem, just take a break, and some situations are more dangerous, such as cerebral insufficiency, hypotension, hypoglycemic fainting, are very dangerous, if not dealt with in a timely and proper manner, it is very easy to cause more serious problems. In recent years, because of the cases of sudden shock and death during exercise, this problem should be paid great attention to.

So how do you do first aid? In my opinion, in the event of an exercise-induced fainting, the most important thing is not to determine what caused it, but to call 120 First Aid** and have it handled by a professional. After all, we are not doctors, and we lack first aid knowledge, and if the patient's condition is aggravated or even an accident occurs because of improper first aid, it will be very troublesome at that time.

Therefore, it is better not to give first aid to a fainting person if you are not a professional doctor.

Of course, if it is a well-defined and easier to deal with, but some first aid measures can be carried out within a controllable range. For example, if the heat stroke fainting caused by the high temperature is not very severe, the patient can be moved to a ventilated and cool place and properly cooled to help it slowly relieve. In addition, some patients with hypoglycemia or cardiovascular and cerebrovascular diseases may take first aid products such as sugar and medicine to relieve symptoms.

In short, do what you can and don't force first aid.

It may lead to cerebral hemorrhage, may lead to sudden death, may also lead to sudden death, may also lead to cardiac arrest, so at this time you should seek help from people around you, and then you should also choose emergency first aid, such as artificial respiration or cardiopulmonary resuscitation, you should call 120 in time.