Associated Press Merel Adriaanse, 7 months old, is propelled through the water by a 'waterbabies' instructor, left, and into the arms of her mother Frederieke Adriaanse, right, June 2 during an infant swim class in Bellevue, Wash. As the country's population of overweight children swells, parents are flocking to baby exercise classes around the nation where tots as young as 1-day-old can start getting fit.

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Fitness classes for babies and toddlers gain popularity

• By ncs-import
• June 12, 2004