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Judi Lynn

(160,217 posts)
Mon Dec 12, 2016, 11:41 PM Dec 2016

Why we walk on our heels instead of our toes: Longer virtual limbs

Why we walk on our heels instead of our toes: Longer virtual limbs

Walking heel-to-toe gives humans the mechanical advantage of longer 'virtual limbs'

Date: December 12, 2016
Source: University of Arizona


James Webber took up barefoot running 12 years ago. He needed to find a new passion after deciding his planned career in computer-aided drafting wasn't a good fit. Eventually, his shoeless feet led him to the University of Arizona, where he enrolled as a doctoral student in the School of Anthropology.

Webber was interested in studying the mechanics of running, but as the saying goes, one must learn to walk before they can run, and that -- so to speak -- is what Webber has been doing in his research.

His most recent study on walking, published in the Journal of Experimental Biology, specifically explores why humans walk with a heel-to-toe stride, while many other animals -- such as dogs and cats -- get around on the balls of their feet.

It was an especially interesting question from Webber's perspective, because those who do barefoot running, or "natural running," land on the middle or balls of their feet instead of the heels when they run -- a stride that would feel unnatural when walking.

More:
https://www.sciencedaily.com/releases/2016/12/161212134609.htm

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