Professional stuntman Damien Walters is used to putting his body in harm’s way to get some great shots but his latest stunt may be the most impressive yet. After seeing countless people perform a loop the loop on a bike or skateboard, Walters thought he could do one better: tackle the loop the loop on foot. Working with MIT’s Department of Mechanical Engineering, Walters was able to figure out exactly what kind of speed he needed and when he needed it in order to complete the feet.