Narahiro Shinjo does his phenomenal cool down stretch routine at the end of class in my Anioch Dojo.

Superhuman stretch ability is a mainstay in the training regimen of the black belts of the Shinjo Uechi Ryu Karate Dojo in Okinawa. It strengthens the body and reduces the chance of injury while adding a new level of capability to one's karate.