Different muscles, different exercises: how Offutt’s Run Clinic is shaving off minutes
Members of the Run Clinic sprint on the treadmills at the Offutt Field House at Offutt Air Force Base, Nebraska Sept. 29, 2017. The Run Clinic is held every Monday, Wednesday and Friday at the Field House at 5 p.m. (U.S. Air Force photo by Staff Sgt. Rachel Hammes)

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Photo by: David Hopper |  VIRIN: 170929-F-TE211-009.JPG