This is a Japanese sport called Bo-Taoshi. Remember that game you used to play in grade school, where one kid would stand on top of a mound of snow or dirt, and everyone else would try to push him off? This is basically that, except with a pole and a whole lot more flying jump kicks.
Honestly, I kind of dig this. It's not complicated, features cool chanting, and affords participants the opportunity to go flying over big scrums of opponents with reckless abandon. I would have played the shit out of this sport in sixth grade.