First Lt. Alex Johnson, 23rd Expeditionary Bomb Squadron electronic warfare officer, performs muscle-ups Oct. 21, 2015, at Andersen Air Force Base, Guam. Johnson does functional fitness at least five times a week, and follows a program that guides him during his daily exercises. (U.S. Air Force photo by Airman 1st Class Arielle Vasquez/Released)
No camera details available.
This photograph is considered public domain and has been cleared for release.
If you would like to republish please give the photographer appropriate credit.
Further, any commercial or non-commercial use of this photograph or any other
DoD image must be made in compliance with guidance found at
which pertains to intellectual property restrictions (e.g., copyright and
trademark, including the use of official emblems, insignia, names and slogans), warnings
regarding use of images of identifiable personnel, appearance of endorsement, and related matters.