Method of selecting specific skeletal muscle highly sensitive to human psychological state, device for selecting specific skeletal muscle, method of evaluating stress during work, and system for evaluating stress during work
The selecting method and apparatus for selecting a specific skeletal muscle affected by a psychological state of a person from skeletal muscles of the person apply at least a first stimulus to the person to bring the person into an uncomfortable state, acquire muscle activity information of each of the skeletal muscles when the first stimulus is applied to the person and select the specific skeletal muscle based on the muscle activity information of each of the skeletal muscles by the first stimulus. The stress evaluating method and system acquire the muscle activity information of the person during an operation for the selected specific skeletal muscle selected by the selecting method and apparatus, and evaluate a degree of stress placed on the person during the operation based on the acquired muscle activity information.