Christine Mboma ran 48.54 in Bydgoszcz on 30 June 2021, but her performance was removed from the World Athletics database because of Testosterone regulations in women's athletics.See also: Women's 400 metres world record progression See also: Men's 400 metres world record progression From 31 appearances in the Olympic Games, the men's gold medalist came from the US 19 times.Īll-time top 25 Men (outdoor) Pérec became the first to defend the Olympic title in 1996, Johnson became the first and only man to do so in 2000. Alberto Juantorena of Cuba at the 1976 Summer Olympics became the first and so far the only athlete to win both the 400 m and 800 m Olympic titles. Īn Olympic double of 200 metres and 400 m was first achieved by Valerie Brisco-Hooks in 1984, and later by Marie-José Pérec of France and Michael Johnson from the United States on the same evening in 1996.
The men's T43 Paralympic world record of 45.07 seconds is held by Oscar Pistorius. Jarmila Kratochvílová holds the world indoor record at 49.59 dating back to 1982. Salwa Eid Naser is the reigning women's world champion, while Shaunae Miller-Uibo holds the women's Olympic title. The current women's world record is held by Marita Koch, with a time of 47.60 seconds. The world indoor record holder is Michael Norman, in 44.52 seconds. Steven Gardiner is the reigning Olympic Champion and World Champion.
van Niekerk is also the Olympic record holder. The current men's world record is held by Wayde van Niekerk of South Africa, with a time of 43.03 seconds. While considered to be predominantly an anaerobic event, there is some aerobic involvement and the degree of aerobic training required for 400-metre athletes is open to debate. Maximum sprint speed capability is a significant contributing factor to success in the event, but athletes also require substantial speed endurance and the ability to cope well with high amounts of lactic acid to sustain a fast speed over a whole lap. The blocks allow the runners to begin more powerfully and thereby contribute to their overall sprint speed capability. The runners take up position in the blocks on the 'ready' command, adopt a more efficient starting posture which isometrically preloads their muscles on the 'set' command, and stride forwards from the blocks upon hearing the starter's pistol. Like other sprint disciplines, the 400 m involves the use of starting blocks. In many countries, athletes previously competed in the 440-yard dash (402.336 m)-which is a quarter of a mile and was referred to as the 'quarter-mile'-instead of the 400 m (437.445 yards), though this distance is now obsolete. Runners start in staggered positions and race in separate lanes for the entire course. On a standard outdoor running track, it is one lap around the track. It has been featured in the athletics programme at the Summer Olympics since 1896 for men and since 1964 for women.
The 400 metres, or 400-metre dash, is an endurance race event in track and field competitions. The closing stages of a men's 400 m race.