CrossFit
Carly Height with Team Offutt Tactical Fitness holds a 35-pound kettle bell while her partner, Angie Hobbs rows on the rowing machine during the second workout of the 2014 TactFit Games at the Offutt Field House Jan. 19. During the second workout, two team members had seven minutes to row for a calorie count, while their partner holds a kettle bell above their head. Once the kettle bell breaks the plane of the head, the partner rowing had to stop until the kettle bell was lifted again. (U.S. Air Force Photo by 2nd Lt. Carly A. Costello/Released)