For an ergonomic sitting position, the height of the desk and desk chair must be adjusted to the user's height. In a normal sitting position, the upper and lower arms should form an angle of at least 90 degrees to the work surface, with the shoulders relaxed and the upper arms hanging loosely. The feet should touch the floor completely and the upper and lower legs should also form an angle of at least 90 degrees. If this is not possible, a height- and tilt-adjustable footrest can be helpful.

There should be enough space under the desk for the legs so that the thighs do not touch the underside of the desk. Wastepaper baskets, computers or mobile pedestals should only be placed under the desk if there is enough space for the legs. Cables should be neatly routed so as not to hinder the legs from stretching out.

The correct sitting posture on a desk chair involves making full use of the seat surface, with a hand's width of space between the back of the knee and the edge of the seat. The back should touch the backrest, which should be flexibly adjustable and provide good support for the lumbar vertebrae and extend to the middle of the shoulder blades. Avoid sitting only on the front edge of the chair, as this leads to faster tension. When working at a screen for long periods of time, it is advisable to vary your sitting posture regularly and to incorporate standing activities in between to promote blood circulation and relieve pressure on the intervertebral discs.

The distance between your eyes and the computer monitor should be 45 to 80 centimeters. This can be checked by sitting upright, leaning your back against the backrest and stretching out your arms; your fingertips should touch the monitor or it should be slightly further away. The monitor should be positioned so that the head is tilted slightly downwards when looking at the center of the screen and the top line of the screen should not be above eye level. To avoid reflections and glare, the screen should be positioned so that the view is parallel to the window, whereby windows at the back or directly opposite are unfavorable.

The keyboard should be placed about 10 centimeters from the edge of the desk to create a resting surface for the palms of the hands. The forearms should rest loosely on the tabletop, the arms should not be stretched out and the wrists should not be bent upwards. Only place the feet of the keyboard on a wrist rest. The mouse should be positioned close to the keyboard so that the guide hand is at a right angle to the edge of the table. The keyboard should always be positioned separately from the screen. When working on a laptop for long periods of time, we recommend using a docking station with a separate monitor, keyboard and mouse.

Work equipment should be placed in the central field of vision and in the "small reach space". This space is achieved by sitting upright in the office chair with the upper arms hanging down and the forearms horizontal. Frequently used objects, such as the telephone, should be within easy reach of the shoulders.