Subsequent work has revised that estimate downwards quite a bit: https://www.originalwisdom.com/wp-content/uploads/bsk-pdf-manager/2019/03/Ruiz-and-Torices_2013

Subsequent work has revised that estimate downwards quite a bit: https://www.originalwisdom.com/wp-content/uploads/bsk-pdf-manager/2019/03/Ruiz-and-Torices_2013_Humans-running-at-stadiums-and-beaches-and-the-accuracy-of-speed-estimation-from-fossil-trackways.pdf https://www.originalwisdom.com/wp-content/uploads/bsk-pdf-ma...