Perform the following physical activities: extensive walking, kneeling, squatting, bend floor-to waist/waist-to-overhead, reach overhead, stand for long periods, stoop to low levels, simple grasp and fine hand manipulation tasks (use of tools/keyboard/writing). Perform the following physical activities: kneeling, squatting, bend floor-to waist/waist-to-overhead, reach overhead, simple grasp and fine hand manipulation tasks (use of tools/keyboard/writing).