Treadmill

A horse grinds olives in a treadmill in the Atlas Mountains

Donkey-powered grinding mill, in Oxaca, Mexico

Sportspeople are being tested on a treadmill

A treadmill is a device for walking or running, while staying in the same place. Before there was steam power, such treadmills were used to power machines. That way, the work of animals or people could be used in the machines. Such treadmills were also used as a form of punishment in prisons.

Treadmill Media

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  Example of modern treadmill

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  Human-powered treadmill for grinding grain

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  Treadmill test at the medical center of the Olympic village at the 1980 Summer Olympics

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  White horse on a treadmill in Qatar.

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  Military working dog, walks on an underwater treadmill to recover from an injury