Running is a means of terrestrial locomotion allowing humans and other animals to move rapidly on foot. It is simply defined in athletics terms as a gait in which at regular points during the running cycle both feet are off the ground. 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 legs in an inverted pendulum fashion. A characteristic 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 sprinting.
The ancestors of mankind developed the ability to run for long distances about four and a half million years ago, probably in order to hunt animals. Competitive running grew out of religious festivals in various areas. Records of competitive racing date back to the Tailteann Games in Ireland in 1829 BCE, while the first recorded Olympic Games took place in 776 BCE.
Famous quotes containing the word running:
“I must down to the seas again for the call of the running tide Is a wild call and a clear call that may not be denied.”
—John Masefield (18741967)
“Frances Stevens: Mother, this is why Ive had to spend half my life running around the world after youto keep men like this away from you.
Mrs. Stevens: Well after this, let me run my own interference. It looks like the blockers are having all the fun.”
—John Michael Hayes (b. 1919)
“And this our life, exempt from public haunt,
Finds tongues in trees, books in the running brooks,
Sermons in stones, and good in everything.”
—William Shakespeare (15641616)