Does taking off your shoes change how your foot hits the ground? Runners land differently depending on whether they wear shoes. This project captures those differences on video. You film ten runners sprinting 100 meters with shoes and then barefoot. A camera at the halfway mark records their foot strikes. You count how many of the first ten strides land on the forefoot. With shoes, runners land on their forefoot only one or two times out of ten. Barefoot, that number jumps to nearly every stride.