Body agility is emphasized.2.XBalancing 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.XKneeling 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.XReaching 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.XPushing using upper extremities to press against something with steady force order to thrust forward, downward or outward.11.XPulling Using upper extremities to exert force in order to draw, drag, haul or tug objects in a sustained motion.12.XLifting 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.