Sports: the concepts of sprint and middle and long distance running.

Sprint is a kind of track and field events, which generally includes: 50m run, 60m run,100m run, 200m run, 400m run, 4x100m relay run and 4x400m relay run. Its sports characteristics are: people run the specified distance on the determined runway at the fastest speed at the same time, and the first runner wins; In terms of functional energy supply, it shows that the human body gives full play to human instinct and supplies energy through anaerobic metabolism.

Middle and long distance running (middle)

and

long

distance

Race) is short for middle and long distance running. It is a track and field event with a distance of more than 800 meters. Middle and long-distance running events include men's 800 meters, women's 800 meters and men's 1500 meters; Long-distance running events include men's 5000m and10000m, and women's 3000m, 5000m and10000m. Middle and long distance running is a long-standing and popular sport. In the ancient Olympic Games more than 2,000 years ago, there were middle and long-distance races. /kloc-in the 0/9th century, middle and long-distance running has become popular in Britain, and later countries all over the world have started it one after another. From 19 10, China also has middle and long distance running. Pay attention to the effect of moving forward in middle and long distance running, and don't drop your center of gravity too much. The movements of legs and arms should be relaxed and labor-saving, and the legs should be soft and elastic. The training methods used in middle and long distance running include repetitive training, interval training, alternating fast and slow training, hillside running, beach running, plateau training and so on.

Middle and long distance running is a typical cyclical endurance event. Its energy metabolism is characterized by the mixed metabolism of aerobic metabolism, glycolysis and protophosphorus (ATP-cp).