Science Fair Project Encyclopedia
400m
400m is a common track running distance. On a standard outdoor running track, it is exactly once around the track in the inside lane. This is the longest distance that is usually run in lanes all the way round. A successful runner will need an efficient stride and superior speed, and a small amount of non-fast twitch muscles to be competitive. For career 400m runners this becomes a prolonged high speed sprint.
The current men's world record is held by Michael Johnson, with a time of 43.18 seconds. The world indoor record holder is Kerron Clement, in 44.57 seconds. The reigning Olympic champions are Jeremy Wariner and Tonique Williams-Darling.
Famous 400m runners
Men
Women
03-10-2013 05:06:04
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details