Running

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:

    Andrews: Do you mind if I ask a question frankly? Do you love my daughter?
    Peter: Any guy that’d fall in love with your daughter ought to have his head examined.
    Andrews: Now that’s an evasion.
    Peter: She grabbed herself a perfect running mate. King Westley! The pill of the century. What she needs is a guy that’d take a sock at her once a day, whether it’s coming to her or not.
    Robert Riskin (1897–1955)

    It was far in the sameness of the wood;
    I was running with joy on the Demon’s trail,
    Though I knew what I hunted was no true god.
    Robert Frost (1874–1963)

    Gossip is news running ahead of itself in a red satin dress.
    Liz Smith (b. 1923)