School News Network (provided by the Sports Department)Before and during exercise, the functions of various organs in the human body will undergo a series of changes. These changes are closely related to the person's emotion, mental state, physical condition, exercise experience, and related external environment and other factors. Will reduce exercise capacity.

1. Determine the amount and intensity of exercise based on your physical condition on the day of exercise

Before exercise, if you w88 online live casinohave the following conditions, exercise vigorously(Long distance running, for example) should be discontinued.

① Lack of sleep;

② Feeling of excessive fatigue;

③ After a hangover(Hangover);

④ After receiving strong mental stimulation;

⑤ Cold, dysentery or other physical discomfort;

⑥ After using drugs(nerve sedatives, antihypertensive drugs, heart disease drugs, etc.).

2. Pay attention to the time relationship between exercise and diet

Generally speaking, the diet should be based on the principle of "high sugar, high protein and low fat", and you should try not to exercise within an hour after a meal. The reasons are: ① It stimulates the gastrointestinal tract.

3. We must pay attention to preparatory activities before exercise

The purpose of preparatory activities is to gradually excite the nervous system and reach an appropriate level to enable the body to enter a state of movement.

Content of preparatory activities: The general methods of preparatory activities are whole-body activities such as stretching, brisk walking, jogging, and continuous in-situ calisthenics. These activities can enhance the mobility of the limb joints and help improve general athletic ability.The intensity of the 10 to 20 minutes of preparatory activities is measured by slight body heat or slight sweating. If you are older, have poor training levels, w88 mobileor are in the summer, you should not practice for too long in preparation activities to avoid fatigue.

4. Prevention and treatment of sports injuries in sports

①Abdominal pain: In order to prevent abdominal pain during exercise, the time of eating and exercise should be consistent. Do adequate preparatory activities before exercise.

②Breaking breath: a. Take a deep breath in time, and then hold the breath in; when the patient does it by himself, he can make a fist and punch the left and right sides of the chest from top to bottom, and then slowly and deeply exhale. Repeat this several times to relax the respiratory muscles and relieve the pain.

③Crams: Pull the spasmed muscles with external force, but the force should be gentle and avoid sudden or excessive force. If the calf gastrocnemius muscle spasms, you can straighten the knee joint and hook your toes hard when returning.

④Fainting: Slow down after squatting for a long time; continue jogging and take deep breaths after strenuous exercise or sprinting. These are all ways to prevent syncope.

5. Cleaning up after exercise is essential

①The cleaning activities after exercise are to accelerate the removal of metabolites, speed up physical recovery, and prevent fainting and other accidents after exercise. In principle, the commonly used finishing method is not to enter a quiet state immediately w88 slotafter strenuous exercise, but to continue light exercise for a period of time to gradually return the hyperactive function to the basic level.