Abstract: A ergonomic arm support system for reducing the physical loading of an operator's upper extremities and neck during keying operations is disclosed. The support system includes a hand board and a pair of hand pads that are positioned on the hand board. The coefficient of friction between the hand board and the hand pads is minimal. The support system is installed between a keyboard, such as a computer keyboard, a typewriter, or some other key pad device, and the operator. In use, an operator's hands are supported by the hand pads during keying and rest periods. The hand pads slide freely over the hand board, allowing unrestricted freedom of hand movement over the entire keyboard and into a resting position.