This is a series of fitness tests used to assess a child's fitness level. Tests include the Progressive Aerobic Cardiovascular Endurance Run (PACER) test (similar to shuttle run); curl-up, which is often referred to as a sit-up; trunk lift; push-up (or modified push-up); and back-saver sit and reach. Optional tests include a 1 mile run/walk, modified pull-up or flexed arm hang (for muscular strength and endurance), and a shoulder stretch (for flexibility). Tests should be performed with the assistance of a partner who counts and/or times the activity.