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RE: Saucony's Jared Ward publishes scientific paper showing that Nike's 4% shoes really do work
Those aren't competitor's versions of the 4%...

Berg is referring to the Hoka Carbon X, Skechers GoRun Razor Elite, the Saucony Prototype Ward wore at Boston, and the new Adidas Prototype that has been floating around.

To answer the original question, those models weren't tested by the study.

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