The main role of this research group is to investigate methods for assessing workers' health conditions and health management. The effects of working conditions such as working hours, rest periods, physical work environment and work stress are assessed mainly from psychosocial and physiological points of view. The group also investigates technical methods for occupational health management and work organization, to help make the workplace more productive and comfortable. This includes the development of assessment technology, in conjunction with designing optimal working conditions which more carefully match the various physical requirements of working populations in the modern world.