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Kids did show a significant fitness impact when using the Wii...

Residents taking advantage of new fitness center (Mount Vernon News)

FREDERICKTOWN -- Fredericktown Local School District and Knox Community Hospital have partnered to open the Fredericktown Fitness Center, located in the old high school building. Community members have been taking advantage of the facility. Art Dremann, Fredericktown resident, has been a steady user.

Study: Wii Has 'Little Effect' on Family Fitness (PC World via Yahoo! News)

If you're thinking of buying a Wii this holiday for health-related reasons, you may want to think twice. A professor of health and exercise science at the University of Mississippi reportedly tracked eight families for six months to see if Nintendo's motion-driven console would impact their fitness levels and found that the console "had little effect on family fitness."