Usually like fitness. I remember when I was in college, my PE teacher told me how to practice 800 meters. (The following is for your reference)

800 meters belongs to middle and long distance running, so it is very important to run 800 meters at a constant speed. In general, it is best to run at a constant speed, but it does not rule out the final sprint.

Next, let's talk briefly about how the PE teacher made me practice 800 meters:

1, according to your training level, you should rush at the beginning, don't panic, and you will slow down after a few tens of meters. Then, keep your own speed, and it is best to run with it, that is, just keep up with someone who is similar to you.

Pay attention to breathing, three steps, three steps. Run three steps forward, keep breathing in, run three steps, keep breathing out. If you are short of breath and can't do it, change it to two steps, one is called two steps.

Note: don't open your mouth too wide, or you will have a stomachache as soon as you enter the air conditioning. If you are training on the 400-meter standard field, you need to run two and a half laps. In the last 200 meters, try your best and rush forward. You can take a deep breath at this time until you cross the finish line. I'm sure to get good grades.

2. According to your own ability, adopt uniform running tactics: except for the accelerated running after the start and the final sprint running, you basically adopt high-speed uniform running on the way. Breathing method In the process of long-distance running, the human body consumes a lot of energy and needs a lot of oxygen, so it is very important to master the correct breathing method.

In the middle and long-distance running, in order to increase the lung ventilation, the method of synchronous breathing of nose and mouth is used when breathing. The breathing rhythm should match the running rhythm, generally using two steps and one breath, two steps and one breath, or three steps and one breath.

Pay attention to increase the depth of breathing when breathing. Reasonably solve the "pole" and "second breath" of 800-meter running. Because the supply of oxygen lags behind the body's needs, when running to a certain distance, you will feel chest tightness, interrupted breathing rhythm, difficulty breathing, weakness of limbs and no longer running. This phenomenon is called pole. "This is a normal phenomenon of middle and long distance running. When the "pole" appears, you should continue to run with tenacious will, and at the same time strengthen your breathing and adjust your pace. In this way, after a certain distance, the breathing becomes even, the movement is heavy and relaxed, and all the discomfort disappears. This is the so-called second breathing state. In middle and long distance running, abdominal pain is easy to occur due to insufficient preparation activities, 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. Or follow the running tactics: after starting, always follow the team leader or small group, and strive to surpass the opponent in the final sprint stage and take the lead in passing the finish line.

3. There is also the action of running: it should be noted that coordination must be relaxed when running. This requires that on the basis of correct movements, the whole foot should be used to land and the knee flexion buffer should be transferred to the forefoot. The upper body is upright and relaxed, and the arm movements are natural and powerful.

In addition, in view of your situation, I will give you some suggestions: (The following is for your reference)

First of all, eat less or no sugary food before training, eat 80% full and digest well. You can drink 200ML of 40% glucose water 30-40 minutes before training. In addition, take three tablets of vitamin C instead of chocolate;

2. Carefully prepare for the training. Track and field sports can easily cause injuries to muscles, joints and ligaments, especially lower limbs. The only way to prevent it is to prepare before the game. The more prepared you are, the less likely you are to get hurt. On the basis of jogging, you can exercise the shoulder joint, elbow joint, lower back muscles, legs, knees and ankles, strengthen the strength of muscle ligaments, improve the sensitivity and coordination of the body, thus preventing injuries and improving sports performance;

3. Pay attention to maintaining good sleep and physical reserve before training, and control excessive diet and drinking water before the game;

4, after exercise or training, should do a good job of relaxation activities, in order to restore physical strength and muscle strength as soon as possible. Its method is to shake and pat all parts of the body and massage with each other.

5。 Don't take off your coat before you have a fever, and put on your coat immediately after the long-distance running to prevent you from catching a cold. Wear soft shoes and socks for long-distance running, such as feet.