Running
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.
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Famous quotes containing the word running:
“... with dozens of as yet
Unrealized projects, and a strict sense
Of time running out, of evening presenting
The tactfully folded-over bill?”
—John Ashbery (b. 1927)
“Gossip is news running ahead of itself in a red satin dress.”
—Liz Smith (b. 1923)
“I never thought I’d have such a luxurious life. A healthy husband ... beautiful little girl ... Jacuzzi and beer and fruitbowl and Beethoven and Mendelssohn and running.... Running is the best thing. [Ellipses in original]”
—Miki Gorman (b. 1935)