Col. Joe Lindsey, 319th Mission Support Group commander, fights off muscle fatigue and completes seven more pushups in his final 15 seconds during the 2014 Shirts’ Push Up-A-Thon held March 26, 2014, at the sports and fitness Center at Grand Forks Air Force Base, N.D. Lindsey pumped out 270 push-ups in 10 minutes to help raise money for the Grand Forks AFB 1st Sergeants’ Council charitable programs. (U.S. Air Force photo/Staff Sgt. Luis Loza Gutierrez)
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