PHYSICAL SCREENING U.S. Navy sailors perform pull-ups while taking a physical screening test at Naval Amphibious Base in Coronado, Calif., July 10, 2008. The sailors interested in applying for SEAL or Special Warfare Combatant-craft Crewman training must complete a timed swim, run, push-ups, sit-ups and pull-ups. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 215972-C-NIQ26-820.jpg Photo Gallery