Positions in this class typically include talking, hearing, seeing, grasping, standing, walking and repetitive motions, stooping, kneeling, crouching, and reaching, climbing and balancing, plus pushing, pulling and lifting. Physical Demands, Working Conditions and Physical Effort Medium Work - Exerting up to 50 pounds of force occasionally, up to 20 pounds of force frequently, and/or up to 20 pounds of force constantly having to move objects.