Were Early Humans As Fast As the Pros?

New equation calculates speed from footprints

Two Spanish scientists are having something of a Holmesian moment. Javier Ruiz and Angélica Torices of Madrid's Complutense University have created an equation that determines an individual's walking or running speed based solely on their footprints. 

The scientists collected data on speed and stride length from professional athletes as well as 14 paleontology students who were asked to run along a beach. Their resulting calculations showed surprising accuracy, with a margin of error ranging from 10 to 15 percent. 

Now they hope to apply the equation to fossilized footprints of early humans. In fact, they have already used it on Pleistocene-era tracks in Australia. Scientists had previously guessed that the tracks indicated a speed comparable to that of a professional athlete. Ruiz and Torices' equation has estimated a much more believable sprinting pace. Mystery solved.

Our mission to inspire readers to get outside has never been more critical. In recent years, Outside Online has reported on groundbreaking research linking time in nature to improved mental and physical health, and we’ve kept you informed about the unprecedented threats to America’s public lands. Our rigorous coverage helps spark important debates about wellness and travel and adventure, and it provides readers an accessible gateway to new outdoor passions. Time outside is essential—and we can help you make the most of it. Making a financial contribution to Outside Online only takes a few minutes and will ensure we can continue supplying the trailblazing, informative journalism that readers like you depend on. We hope you’ll support us. Thank you.
Contribute to Outside
Filed To: News
More Adventure