Faculty and students assigned to the Mobility Air Force Supervision and Production course at the U.S. Air Force Expeditionary Center at Joint Base McGuire-Dix-Lakehurst, N.J., participate in the Ground Up Fitness Challenge Oct. 12, 2010. Students and faculty at the center perform sets of push-ups and sit-ups at designated times each day as part of the organization's overall effort to instill a commitment to fitness. (U.S. Air Force photo/Staff Sgt. Zachary Wilson)