Photos by WENDY PIERRO/Acorn Newspapers STRIKE A BOARD—Master Instructor Rick Ostrander, above, helps Moorpark resident Sophia Medvez, 7, with an ax kick last Friday at the American Academy of Self Defense during a Breakathon fundraiser. The event helped raise money for the Nephcure Foundation by allowing participants to pledge for the opportunity to break boards using a number of basic karate moves. Newbury Park resident and American Academy of Self Defense student Andrew Stubblefield, 6, was diagnosed with minimal change nephrotic syndrome, a kidney disorder, in 2007. Below, Andrew gets ready to break a board with a palm heel strike.