OPT？MUM MOVEMENT CHARACTER？ST？CS FOR ERGONOM？C OFF？CE CHA？RS

Office chairs have an important place in today's business life. People working in the office continuously sitting on seats with ergonomically appropriate characteristics are of great importance for healthy living and high efficiency. The primary criterion in the ergonomic office chair design is the ability to move the different parts of the seat. A standard non-stationary seat can not respond to the needs of people with different anthropometric body values. Office seats should have different bending and twisting characteristics at the same time as not only seats that are brought up to different anthropometric limit values. Static and dynamic anthropometric limit values of people are also reflected in the design. In accordance with the determined limit values; armrest, headrest, backrest, sitting surface, elevation, bending angle, integrated mobility and rotation properties of the seat were investigated