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Ape index

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Ape index, ape factor, or gorilla index is slang or jargon used to describe a measure of the ratio of an individual's arm span relative to their height. A typical ratio is 1, as identified by the Roman writer, architect and engineer Vitruvius prior to 15 BC. Vitruvius noted that a "well made man" has an arm span equal to his height, as exemplified in Leonardo da Vinci's c. 1492 drawing, the Vitruvian Man. In rock climbing it is believed that an ape index greater than one, where the arm span is greater than the height, provides for a competitive advantage, and some climbers have expressed the belief that exercise can result in an improved ratio, although this view is somewhat controversial.

Ape index - Wikipedia Jump to content From Wikipedia, the free encyclopedia Ratio of arm span to height Vitruvian Man c. 1492 by Leonardo da Vinci . Based on proportions identified by Vitruvius , the drawing shows a man where the arm span is equal to the height, giving an ape index of 1. Ape index , ape factor , [ 1 ] or gorilla index is slang or jargon used to describe a measure of the ratio of an individual's arm span relative to their height. A typical ratio is 1, as identified by the Roman writer, architect and engineer Vitruvius prior to 15 BC. Vitruvius noted that a "well made man" has a

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