Shihan Ka'imi Kuoha-Sanders (5th dan) breaks 750lbs. of ice with her elbow.
She is only 5'2" (sam as Professor Chow)
http://http://www.youtube.com/watch?v=VaflgNkePKM
She is only 5'2" (sam as Professor Chow)
http://http://www.youtube.com/watch?v=VaflgNkePKM