Great video of Greg Roskopf (the founder of Muscle Activation Techniques)
http://www.youtube.com/watch?v=5HgezgRiaos&feature=PlayList&p=D0F79E368F47AC34&index=0
Yankee Mark Teixeira using MAT to increase flexibility and power. Buster Olney even gives a shot out to MAT!
http://www.youtube.com/watch?v=UYul5yms1wk