Not sure how many people know about slacklining, but it's a really cool sport where it's basically a trampoline and a tightrope put together. It was also featured in the most recent superbowl half time show. Anyway, I was wondering if anyone else here slacklines, and if anyone can identify what muscles are being primarily worked when slacklining. Here's a video demonstration.
http://www.youtube.com/watch?v=HDTwQGEeGZc



