This includes the functional ability to physically restrain people, requiring retention of trained knowledge under stress as well as the ability to meet significant physical demands including those of a struggle with someone physically larger and heavier, while making all possible efforts not to inflict injury. While performing the duties of this job, the employee must be able to sit, stand, and walk for variable amounts of time throughout an assigned shift; use hands to finger, handle or feel objects, tools or controls; reach with hands and arms; climb stairs; occasionally stoop, kneel, or crouch.