The impetus behind the raucous run by Dirk Nowitzki and the Dallas Mavericks last spring? Um, turns out there was a girl in the boys' room. But not that kind. This kind: Throughout the playoffs Dr. Collings laid her healing hands upon Dirk's aching back in a crack-ya-bones sorta chiropractic way. But Collings, a '93 graduate of Dallas' Parker College and founder of Las Colinas Spine & Sports Medicine, didn't just work her magic on Dirk. Last year alone she treated the Stars' Steve Ott and Jason Arnott, Cowboys punter Matt McBriar, ESPN's Darren Woodson, PGA player Brandt Jobe, actor Chuck Norris, singer Alanis Morissette and even the Highland Park High School "Belles" drill team. During the Mavs' playoff push and into the NBA Finals, Nowitzki was a weekly visitor to Collings' Las Colinas office. Said Collings, "It was rewarding to have a small hand in his success." Just to prove she also possesses talented feet, next month Collings will run a marathon in Washington, D.C.