Photo of the Day

Picture of a man with a prosthetic leg sprinting on a treadmill in a lab

Science of Sprinting

Paralympian sprinter Jarryd Wallace's biomechanics are analyzed at the Southern Methodist University Locomotor Performance Laboratory in Dallas, Texas. This photo appeared in a July 2018 story about how science and technology help athletes improve their performances.
Photograph by Robert Clark, Nat Geo Image Collection