Footspeed
Footspeed, or sprint speed, is the maximum
athletics and many sports, such as association football, rugby football, American football, track and field, field hockey, tennis, baseball, and basketball
.
Factors in speed
The key determinant of footspeed in
long-distance runners may have only 20%.[1] This ratio is believed to have genetic origins, though some assert that it can be adjusted by muscle training.[2] "Speed camps" and "Speed Training Manuals", which purport to provide fractional increases in maximum footspeed, are popular among budding professional athletes, and some sources estimate that 17–19% of speed can be trained.[2]
Though good running form is useful in increasing speed, fast and slow runners have been shown to move their legs at nearly the same rate – it is the
Limits of speed
The record is 44.72 km/h (27.78 mph), measured between meter 60 and meter 80 of the
100 meters sprint at the 2009 World Championships in Athletics by Usain Bolt.[4][5] (Bolt's average speed over the course of this race was 37.578 km/h or 23.35 mph.)[6]
Compared to quadrupedal animals, humans are exceptionally capable of domestic cat may reach 48 km/h (30 mph).[10]
See also
- Walking speed, the normal pace humans walk.
Notes
- ^ a b Quinn, Elizabeth. "Fast and Slow Twitch Muscle Fibers" Archived 2007-11-21 at the Wayback Machine, About.com, retrieved November 26, 2007.
- ^ a b Ziegler, Mark (18 April 2005). "The NFL treats 40-yard dash times as sacred. But if those numbers are true, many players are faster than Olympic gold medalists and their clockings should be eyed with a dash of doubt". Union-Tribune San Diego. Retrieved 26 February 2014.
- ^ a b Herper, Matthew. "What's The Human Speed Limit?", Forbes.com, May 14, 2004, retrieved November 26, 2007.
- ^ International Association of Athletics Federations Biomechanical Research Project: Berlin 2009 (PDF), archived from the original (PDF) on 2014-05-14, retrieved 2017-04-09
- ^ http://www.meathathletics.ie/devathletes/pdf/Biomechanics%20of%20Sprints.pdf [bare URL PDF]
- ^ How Fast Is Usain Bolt? Engineering Sport
- ^ "Humans hot, sweaty, natural-born runners", Physorg.com, April 16, 2007, retrieved November 27, 2007.
- ^ Kruszelnicki, Karl. "Fake Flies and Cheating Cheetahs", Australian Broadcasting Corporation, 1999, retrieved November 27, 2007.
- ^ Rinehart, Janet. [1], Iowa Quarter Horse Racing Association, retrieved November 27, 2007.
- ^ a b American Museum of Natural History. "Speed of Animals", Infoplease.com, retrieved November 27, 2007.
- Stipp, David (4 June 2012). "All men can't jump". Slate. Retrieved 7 September 2012.
- Resnick, Brian (November 5, 2010). "The animal kingdom's top marathoners". Popular Mechanics. Retrieved 7 September 2012.