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:
“Tattoo-shops, consulates, grim head-scarfed wives;
And out beyond its mortgaged half-built edges
Fast-shadowed wheat-fields, running high as hedges,
Isolate villages, where removed lives
Loneliness clarifies. Here silence stands
Like heat. Here leaves unnoticed thicken,
Hidden weeds flower....”
—Philip Larkin (1922–1986)
“The rain makes still pools on the sidewalk.
The rain makes running pools in the gutter.
The rain plays a little sleep-song on our roof at night—”
—Langston Hughes (1902–1967)
“It is a talent of the weak to persuade themselves that they suffer for something when they suffer from something; that they are showing the way when they are running away; that they see the light when they feel the heat; that they are chosen when they are shunned.”
—Eric Hoffer (1902–1983)