Ergonomics of workstations on screen

Armchair Height

Elbow height in standing seated position

Elbow height in standing position

10° to 20° screen tilt

Eye height in seated position

50 to 70 cm from the screen

Eye height standing

50 to 70 cm from the screen

Size in cm Eyes in a sitting position Eyes in a standing position Elbow in sitting position Elbow in Standing Position Armchair

Positions

The eyes should be aligned with the top of the display surface of the screen (specifically, the center of the screen should be at an angle of 15 degrees to the horizontal at eye level).

Exception: For wearers of progressive lenses, lower the monitor and tilt the screen up to avoid neck pain.

The height of the elbows should be adjusted with the top of the keyboard.

The height of the chair should help to keep the feet flat when the hips are at a 90 ° angle.

A seat slightly inclined downward (3 to 5 degrees) allows to better respect the natural curvature of the spine in double "S", which relieves the lumbar vertebrae.

Remarks

These values do not take into account the clothing elements. Remember to add the height of the shoes to make the right measurements.

Remember that no posture can be preserved for a long time, the postural margin being a fundamental element of comfort.

Beyond its standard recommendations, it is important to consider the location of the various elements at the station, the characteristics and distribution of the various tasks, the environmental context (thermal, acoustic and luminous environment), the collective context of the activity. (stress, mutual assistance, conflicting injunctions, etc.) and any particularities or restrictions of aptitude of the operator concerned.

Be careful not to make the mistake (made by both the operators and the companies specialized in tertiary installations) to position the screen face or back to the window but perpendicular to avoid direct glare (sometimes effective but not perceived) or the reflections of the screen.