Gunner's Mate 3rd Class Joshua Podhirny, left, a member

Gunner's Mate 3rd Class Joshua Podhirny, left, a member of Navy Mobile Construction Battalion 17, completes a pushup during the fall physical readiness test, Oct. 13, at Navy Operational Support Center Fort Carson, which is located more than a mile above sea level at 5,835 feet. The PRT is conducted twice a year to ensure sailors maintain Navy fitness standards and physical readiness.