What is the world record for men's 50-meter dash?

The world record for the men's 50m dash is 5.56 seconds, held by donovan bailey (Canadian).

Sprint is one of the track and field events, generally including: 50m, 60m,100m, 200m, 400m, 4×100m? Relay running and so on; Its sports characteristics: it is an event in which people run the specified distance at the fastest speed at the same time on the track and field, with the first runner as the winner.

In the aspect of human function energy supply, sprint shows that the human body can give full play to people's speed limit instinct. Energy is provided by anaerobic metabolism.

Since 1958, the sprinters of "Bayi" track and field team broke the old record of10 "7 with the score of10" 6, and kept it for 25 years, the sprint performance of Chinese men has been greatly improved.

In just a few years, Sichuan athletes tied the world record of 100 meters with the excellent performance of10 (when writing), which caused a sensation in the world sports world and won honor for the great socialist motherland. The current world record of 100 meter is 9.58 seconds (? Bolt), the national record is 9.99 seconds (Su).

Sprint is to run the prescribed distance with the fastest speed. Teenagers have 100 meters, 200 meters, 400 meters and 60 meters. Sprint is the human body? Exercise organs and internal organs work with maximum intensity under the condition of a large amount of hypoxia, which belongs to? Extreme intensity exercise. Sprint can effectively develop speed quality, so it is the basic event of track and field and also plays an important role in the training of other sports.