General Physical Activities : Include standing, walking, sitting, stooping, kneeling, squatting, body twisting, sense of touch, manual dexterity, speaking clearly, seeing distant/reading, reaching, hearing, depth perception, color vision, lifting, carrying, pushing, pulling, climbing ladders, climbing stairs and balancing. Cardiorespiratory Demand : Must have sufficient cardiorespiratory fitness to be able to perform medium work involving constant standing and walking, material handling and performing work in a hot, humid environment.