Olympics 2012: Carmelita Jeter takes technology in stride

A computer-generated stick figure is helping the world’s fastest woman run even faster. Biomechanist Ralph Mann’s software demonstrates the ideal position for every part of Carmelita Jeter’s body during a sprint. The technology lets Jeter and her coach, John Smith, see and fix tiny imperfections that may mean the difference between a great sprint and a phenomenal one. For more go to