That famous behind doesn't come easy. From leisurely jogs to full-on triathlons, see how the Duchess of Cambridge's kid sister stays fit
Credit: Martin Karius/REX USA
Updated: Thursday Sep 01, 2011 | 06:00 AM EDT
By: Alex Apatoff
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It's no surprise that Pippa earned a Body of the Year nomination. Her dedication to fitness includes regular runs, including this jog along the Thames in London.
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