Athleticism requires skills from the perceptual-motor systems of the brain. (Miller, Lawrence, PhD. Inner Natures. Brain, Self & Personality. p 273-290. NY: Ballantine Books, 1990.)

The neural pathways by which will is translated into physical movement have been trained in the brain/body of athletes until they react to the slightest impulse. (Restak, Richard, MD. The New Brain. p 50-51. PA:Rodale, 2003.)