Are you sabotaging your run?
Angela Anderson, 509th Medical Operations Squadron Health and Wellness Center exercise physiologist, records a participant walking on treadmill, May 1, 2013 at the Whiteman Air Force Base Fitness Center. Health and Wellness Center personnel use both the track and the treadmill to provide training and tips to runners. (U.S. Air Force photo by Heidi Hunt/Released)

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Photo by: Heidi HuntReleased |  VIRIN: 130501-F-FH817-061.JPG