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:
“Swan/Mary Rutledge: Oh no, no. I’m not running away. I came here to get something, and I’m going to get it.
Col. Cobb: Yes, but San Francisco is no place for a woman.
Swan: Why not? I’m not afraid. I like the fog. I like this new world. I like the noise of something happening.... I’m tired of dreaming, Colonel Cobb. I’m staying. I’m staying and holding out my hands for gold—bright, yellow gold.”
—Ben Hecht (1893–1964)
“Boughs have their fruit and blossom
At all times of the year;
Rivers are running over
With red beer and brown beer.”
—William Butler Yeats (1865–1939)
“I think that carrying a baby inside of you is like running as fast as you can. It feels like finally letting go and filling yourself up to the widest limits.”
—Anonymous Mother. Ourselves and Our Children, by Boston Women’s Health Book Collective, ch. 2 (1978)