HealthierUS.gov
   Portal to many fitness-related sites created by the US government. Seeks to be a "source of credible, accurate information to help Americans choose to live healthier lives."
   http://www.healthierus.gov/

President's Council on Physical Fitness and Sports
   Promotes, encourages and motivates Americans of all ages to become physically active and participate in sports. Includes details of the President's Challenge award programs for students, and the Presidential Sports Award Program for ages 6 years old and u
   http://www.fitness.gov/