A few years ago I got into parkour; not so much doing it, but watching cinematic representations of it and writing about it some in this blog.
Give it time, and an outstanding academic article will come out on just about any topic. Today I got the chance to read Michael Atkinson's "Parkour, Anarcho- Environmentalism, and Poiesis" in the Journal of Sport and Social Issues.
Atkinson's piece is outstanding, involving a study of traceurs in Toronto (he ran with the dudes) and developing an argument about the practice as anti-capitalist, environmentalist, and just downright in touch with urban spaces. A terrific piece.