Fitness Series: Triathletes

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CEDAR RAPIDS, Iowa (KCRG-TV9) - Jenny Lorenz of Cedar Rapids puts her body through three grueling workouts a day. That's because the 57-year old is one of the top triathletes in the world in her age group.

She won the Chattanooga Ironman in 2014 and is now a regular at the World Championship in Hawaii.