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Science of the 2012 Summer Olympics: The Impact of Jenny Simpson

Many runners suffer injuries to their joints due to the repeated impact of their feet hitting the ground. U.S. runner Jenny Simpson relies on new treadmill technology to help rehabilitate from a stress fracture as she trains for the 2012 Summer Olympics.

"Science of the 2012 Summer Olympics" is a 9-part video series produced in partnership with the National Science Foundation.

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