New York's Flex Dancers Test The Limits Of The Human Body (10 PICS)

Photographer Deidre Schoo discovered the underground dance phenomenon by chance, after being blown away by a dancer named Storyboard Professor in Harlem. The Professor told Schoo about Battlefest, the primary destination for extreme Flex meet-ups. Soon after, a photography project came to be.

"The process could be rocky at times," Schoo explained to The Huffington Post. "These are kids, and they are sometimes hard to track down, and keep crazy hours. But I hung around for so long and just kept showing up that, eventually, I was accepted and my presence became the norm. Once that happened, it got fun. The dancers were ready to work with me and really enjoyed the attention."