Body agility is emphasized.2.-Balancing Maintaining body equilibrium to prevent falling when walking, standing or crouching on narrow, slippery or erratically moving surfaces.3.XStooping Bending body downward and forward by bending spine at the waist.4.-Kneeling Bending legs at knee to come to a rest on knee or knees.5.XCrouching Bending the body downward and forward by bending leg and spine.6.-Crawling Moving about on hands and knees or hands and feet.7.-Reaching Extending hand(s) and arm(s) in any direction.8.XStanding Particularly for sustained periods of time.9.XWalking Moving about on foot to accomplish tasks, particularly for long distances.10.-Pushing using upper extremities to press against something with steady force order to thrust forward, downward or outward.11.-Pulling Using upper extremities to exert force in order to draw, drag, haul or tug objects in a sustained motion.12.-Lifting Raising objects from a lower to a higher position or moving objects horizontally from position to position. If the use of arm and/or leg controls requires exertion of force greater than that for sedentary work and the worker sits most of the time, the job is rate for Light Work.3.-Medium Work Exerting up to 50 pounds of force occasionally, and/or up to 20 pounds of force frequently, and/or up to 10 pounds of force constantly to move objects.4.-Heavy Work - Exerting up to 100 pounds of force occasionally, and/or up to 50 pounds of force frequently, and/or up to 20 pounds of force constantly to move objects.5.-Very Heavy Work Exerting in excess of 100 pounds of force occasionally, and/or in excess of 50 pounds of force frequently, and/or in excess of 20 pounds of force constantly to move objects.