Happy National Running Day!

While running may seem like second nature, it’s actually a complicated movement sequence that requires total-body coordination.

Here’s how they did:

Bonus: Check out SELF’s Running Guide

Build your own speed-boosting workout!

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November 3, 2009: Reese Witherspoon spotted going for a morning jog with a friend in Brentwood, California today.Credit: INFphoto.com Ref.: infusla-167

Photo credits: INFphoto.com, Auckland/INFphoto.com, Brooks/INFphoto.com, INFphoto.com, David Buchan/INFphoto.com

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April 17, 2010: Fergie aka Stacy Ferguson is photographed jogging in Los Angeles, California. Credit: Auckland/INFphoto.com Ref: infusla-131|sp|

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EXCLUSIVE TO INF. ALL-ROUNDER. February 12, 2010: Kristin Cavallari is in a shy mood as she jogs around West Hollywood, California.Credit: Brooks/INFphoto.com Ref: infusla-153

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October 04, 2009: Tom Cruise (not pictured) and Katie Holmes go jogging in Boston, Massachusetts. Credit: INFphoto.com Ref: infusny-06

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May 8, 2009: Minka Kelly on the set of her latest movie ‘The Roommate’ in Los Angeles, California. Credit: David Buchan/INFphoto.com Ref.: infusla-141