Isaiah Koech
Isiah Kiplangat Koech (born 19 December 1993) is a Kenyan Long-distance track event, long-distance runner who specialises in the 5000 metres. At the 2009 World Youth Championships in Athletics in Brixen, Italy, Koech won a gold medal over 3000 metres, setting a new world youth leading time with 7:51.51. He also took part in the 2010 IAAF World Cross Country Championships in Bydgoszcz, Poland, finishing fourth in the junior men's race. On 11 February 2011, Koech became just the fourth man to run the 5000 m indoor under 13 minutes when he clinched victory in 12 min 53.29 sec at the PSD Bank Meeting in Düsseldorf. He then ran a world junior indoor best for the 3000 m at the Indoor Flanders Meeting a few days later, running a time of 7:37.50 minutes Koech controlled the junior race at the Kenyan Cross Country Championships and took first place, earning a spot for the Junior World Cross. Despite being a provisional favourite for the junior race at the 2011 IAAF World Cross Cou ...
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Running
Running is a method of terrestrial locomotion allowing humans and other animals to move rapidly on foot. Running is a type of gait characterized by an aerial phase in which all feet are above the ground (though there are exceptions). This is in contrast to walking, where one foot is always in contact with the ground, the legs are kept mostly straight and the center of gravity vaults over the stance leg or legs in an inverted pendulum fashion.Biewener, A. A. 2003. Animal Locomotion. Oxford University Press, US. books.google.com/ref> A feature of a running body from the viewpoint of spring-mass mechanics is that changes in kinetic and potential energy within a stride occur simultaneously, with energy storage accomplished by springy tendons and passive muscle elasticity. The term running can refer to any of a variety of speeds ranging from jogging to Sprint (running), sprinting. Running in humans is associated with improved health and life expectancy. It is assumed that the ance ...
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