Table 5.

U.S. Air Force criterion measures.

Criterion Measures	Ergonomic Parameters
Lift/Carry	Lift and carry 10 pieces of equipment (17–59 lb) to/from different heights (30–72 in)
Push/Pull	Push/pull aerospace ground equipment (e.g., portable lights, carts; 500–1,500 lb)
Climb/Carry	Carry 12-ft. ladder, climb 24-ft. ladder to 12 ft., and move 14-lb toolbox to 2 positions
Hold	Hold equipment at different heights (chest and above shoulder level; 14–45 lb) from standing and kneeling/squatting positions