Remember before you exercise.
The first point: dress code
1. Don't put hard and sharp objects such as keys and knives in your coat and trousers pockets.
2. Don't wear all kinds of metal or glass ornaments.
3. Don't wear shoes or leather shoes with plastic soles. You should wear sneakers or ordinary rubber-soled shoes.
The second point: warm-up exercise
Warm-up before physical exercise is an essential link, which makes people enter a more exciting state from a quiet state, thus overcoming the "pole" phenomenon and visceral "functional inertia", mobilizing the cardiopulmonary function, obtaining sufficient oxygen supply for the following activities, and preventing accidental sudden death during exercise.
The third point: relax and exercise
Relaxation exercise is the cooling after exercise, which can not be ignored as warm-up before exercise, in order to achieve good exercise effect. Moderate relaxation after exercise can make all parts of the body slowly adapt to the cessation of exercise, protect health and reduce exercise fatigue.
Small knowledge of sports safety
1. In middle and long distance running, abdominal pain is easy to occur due to insufficient preparation activities, which is what we often call "walking wind", mainly caused by gastrointestinal spasm. At this time, students must not be nervous. They can hold the painful part with their hands, slow down running, take a few deep breaths, and hold on for a while, and the pain will disappear.
2. Pay attention to the "gravity shock" after strenuous exercise, which is mainly caused by sudden stop after strenuous exercise, mostly sitting or lying down immediately after the game, resulting in ischemia and hypoxia of some organs. Therefore, the transition must be achieved by gradually reducing the amount of exercise after the game, and this goal can be achieved by jogging, walking, relaxing and taking a deep breath.
3. During exercise, if you have symptoms such as pallor, cyanosis of lips, dyspnea, chest tightness, foot pain, back pain, severe weakness of limbs, dizziness, shortness of breath, cold sweat, etc. Or if it is difficult for you to control your movements, you should stop or ban this sport immediately.
4. Before sports or competitions, students should pay attention to keep good sleep and body reserves, control too much diet and water before competitions, and don't drink alcohol.
5, after exercise or competition, should do a good job of relaxation activities, in order to restore the strength of the body and muscles as soon as possible. Its method is to shake and pat all parts of the body and massage with each other.