Scientists are studying this 92-year-old sprinter for clues to her fitness

Emma Mazzenga is an Italian elite sprinter who can run 200 meters in just over 50 seconds. She has broken multiple world records and won 12 world titles. She is also 92. CNN's Antonia Mortensen meets Mazzenga in Padova where she trains at least twice a week, all year round, to find out the secrets of her longevity. 3:24 • Source: CNN