Dynamic Sitting Posture

No single sitting posture can remain comfortable if maintained for long periods of time. Movement is important for minimizing fatigue and static effort of the muscles.

• Neck is in a neutral position with the top line of text slightly below eye level;

• Upper arm s hanging vertically, with the forearms horizontal and elbows close to the body;

• No bending of the wrists and fingers falling naturally downward. The employee should move the mouse with a full arm movement, keeping the wrist straight and in line with his/her shoulder;

• A back angle of 110° to 130° when keyboarding and an erect or upright spine, when writing;

• Thighs approximately in a horizontal position and the lower legs vertical; the seat height should be at, or a little below, the popliteal (knee) height of the employee;

• Feet well supported on the floor or footrest