Perform physical activities that require moving one's whole body, such as climbing, lifting, balancing, walking, and stooping, where the activities often also require considerable use of the arms and legs, such as in the physical handling of ma terials. Perform physical activities that require moving one's whole body, such as climbing, lifting, balancing, walking, and stooping, where the activities often also require considerable use of the arms and legs, such as in the physical handling of materials.