Exercise is important for kids; they need to get outside and move.  But there's one form of exercise physicians say needs to be used with caution - the backyard trampoline.

An updated policy statement published in this week's edition of the journal Pediatrics, a publication of the American Academy of Pediatrics, says that although trampoline injury rates have steadily been decreasing over the past few years, 98,000 trampoline-related injuries still occurred in 2009, resulting in 3,100 hospitalizations.

Many parents still think these pieces of equipment are toys, researchers say, and they're not.
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