Field events include jumping and throwing, and track events include walking and running.
Jumping includes long jump and high jump; Throwing includes softball, shot put, javelin and discus.
Running includes sprint, middle and long distance running and cross-country running.
Two, the "national physical exercise standards" referred to as "standard".
The events include 50 meters running, standing running, softball throwing, one-minute rope running and one-minute sit-ups.
The evaluation results are divided into three grades-passing, good and excellent.
Third, eat regularly and quantitatively, without partial eclipse.
Fourth, how to prevent heatstroke?
1, protect indoor air circulation.
2. Try not to let the sun shine in the open air for a long time, do not exercise excessively, wear a cool hat and light-colored, breathable and loose clothes.
3. When traveling, you should prepare enough water and heatstroke prevention drugs, such as Ren Dan, cooling oil and Huoxiang Zhengqi water.
4. Drink water, cool down and prepare medicine.
5. Drink some water and sugar water before exercise. You can rinse your mouth with water and drink some salty warm water after exercise. Exercise for half an hour to an hour after meals; After exercise, it is more appropriate to relax and tidy up first, and then rest for half an hour to eat.
It is not easy to do strenuous exercise before and after meals. Don't drink plenty of water during and after exercise. If the body temperature rises after exercise, don't wash it with cold water immediately.
Six, swimming should pay attention to safety and hygiene:
1, check your body before swimming. 2. Choose a good swimming place. 3. Prepare for the activity. 4. The time before and after swimming and eating should be appropriate. 5. Prevent excessive fatigue. 6. Rinse with cold water after swimming.
Seven, long-distance running exercise should pay attention to safety and health requirements:
1, the distance and speed of running should be appropriate.
People with serious diseases should not take part in long-distance running exercise.
3. Choose a good long-distance running venue.
4. Be prepared before running.
5. Dress for long-distance running.
Eight, physical exercise can promote the growth and development of bones. Because physical exercise can speed up the blood circulation, increase the blood supply of bones, make the epiphyseal growth get sufficient nutrition, and speed up the construction of bones, students who often participate in physical exercise are 4 ~ 8 cm taller than ordinary students.
Nine, the body's intake of nutrition is insufficient, and the body will be thin; Excessive nutrient intake will make the body fat, and physical exercise plays an important role in the growth and development of human muscles.
Ten, due to a lot of sweating during exercise, lack of water in the body, sticky saliva, feeling dry mouth and throat. It is also bad to want to have a good drink or eat a lot of cold food after exercise. If you drink too much water after exercise, too much water in your blood vessels will increase the burden on your heart and kidneys, and your body will feel tired. If you feel thirsty after exercise, you can rinse your mouth with water first and then drink some warm water; Because there is more salt discharged with sweat, it is best to drink warm water with a small amount of salt.
Our body includes head, neck, trunk and limbs. There are 206 bones in the whole body, and the brain is divided into two hemispheres. The limbs are divided into upper limbs and lower limbs. Blood vessels are divided into arteries, veins and capillaries. There are 65.438+06 billion blood vessels with a total length of 65.438+05 million kilometers, which can circle the earth four times.
Through track and field sports, it is mainly to enhance students' physical fitness and improve basic sports abilities such as strength, speed, endurance, agility and flexibility.
A person's height is closely related to race, heredity, nutrition and physical exercise.
In the process of human growth, the growth of bones is an important reason to determine the height of human body.
Physical exercise can promote the growth and development of bones.
The muscles of human body are composed of bundles of muscles, and muscle bundles are composed of small muscle bundles. The smallest muscle bundle contains countless tiny muscle fibers.
Physical exercise plays an important role in promoting the growth and development of human muscles.