Neither approach should be made in isolation. There is obviously an interaction between the two. The less ideal the ergonomics of a workstation, the greater will be the need for rest breaks. This is one way in which ergonomic improvements can have a beneficial effect on productivity. Job Satisfaction Apart from its influence on posture and hence comfort, poor ergonomics of a workstation can have a bad effect on job satisfaction. This is increasingly so as people become aware of the existence of good furniture. For this purpose, furniture is probably.