Comprehensive Airman Fitness: Physical strength
Master Sgt. Estil Fields, 436th Maintenance Group self-assessment program manager, completes a lap on the track during a 90 Plus class Jan. 30, 2017, at Dover Air Force Base, Del. The fitness center hosts this class at 6 a.m. and noon each Monday, Wednesday and Friday. (U.S. Air Force photo by Senior Airman Aaron J. Jenne)