Would you want your kid running on a treadmill to stay fit? More importantly, would your kid be interested in running in one place? One toy manufacturer says yes to both questions and has developed a couple of new fitness products designed with little ones in mind -- Fitness Fun's My Treadmill and Glide-a-Stride. But the exercise machines are causing quite a stir, according to Boston.com.

On one hand, something has to be done to combat childhood obesity and inactivity. On the other?

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