At present, among the long-distance running events in the Olympic Games, 800 meters and 1500 meters belong to long-distance running, 5000 meters and 10000 meters belong to long-distance running, and marathon running 42. 195 kilometers belongs to ultra-long running. There is also a special event, the 3000-meter obstacle course.

Long-distance running is short for long-distance running. The original events were the 4-mile race and the 6-mile race, which were gradually replaced by the 5000-meter race and the 10000-meter race from the middle of the 9th century.

Extended data:

the benefits of long distance running

1. Long-distance running can increase the functions of human respiratory system and cardiovascular system. Research shows that long-distance running can keep people breathing rhythmically for a long time, which can make our bodies inhale more oxygen. If we take in several times more oxygen than usual, we can stop the growth of cancer cells. Long-distance running can also accelerate the metabolism of myocardium and improve the toughness of the heart.

2. Long-distance running can promote health and prevent various diseases. The blood circulation of long-distance runners will be accelerated, and the metabolism of human body will be accelerated, and toxic substances in the body will be easily excreted with sweat. Some surveys show that long-distance running can also reduce human cholesterol, which is always a healthy exercise for the elderly who are prone to cardiovascular and cerebrovascular diseases.

3. Long-distance running can relax people's body and mind and make people feel happy. The scenery experienced during the long-distance running is different. People can relax during the long-distance running and release the depression that has been overwhelmed all day in fitness, which plays a great role in relieving people's mental tension. Medically speaking, in the process of long-distance running, we will secrete more endorphins, which are a calming substance and make people feel happy.

4. Long-distance running makes people full of optimism, which helps to increase appetite, strengthen digestive function and promote nutrient absorption. Long-distance running exercise plays a very good role in cultivating people's tenacious will to overcome difficulties and temper hard work. Especially for those who are afraid of the cold in winter, love to sleep late and don't want to exercise, let people taste the benefits of long-distance fitness exercise.

References:

Baidu encyclopedia-long-distance running