New insights into how feet work when people walk

Though most people are born with two feet, and use them throughout their lives, feet function in complex ways that are not completely understood by scientists. Researchers have many open questions and unproven assumptions about feet and the mechanisms that arose from our evolution as bipedal, upright walkers. Now, new research from Penn State's Department of Kinesiology challenges long-held beliefs about how feet evolved and function and may contain implications for shoe designers.