English 7 - Sedus open up Mode D'emploi

Healthy sitting is a question of attitude
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Use the whole seat surface
The anatomically shaped seat should be fully occupied.
Only then is proper contact with the supporting back-
rest assured.
"open up" is also available with a seat tilt feature,
which allows the normal position of the seat to be
changed by 4°.
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Adjust the height of the seat precisely
The correct seat height means that the elbow joint
adopts an angle of about 90° when the forearms are
resting horizontally on the desktop. The knee joint
will also adopt an angle of about 90° when the feet
are flat on the floor. If your desktop is too high, and
cannot be lowered to a correct position, you need a
footrest with adjustable height and tilt.
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Adjust the backrest
Adjust the height of the lumbar support so that the
curvature of the backrest supports the spine in the
region of the third and fourth lumbar vertebrae (where
the forward curvature is greatest). This stabilises the
natural S-shape of the spine in every sitting position.
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Dynamic sitting
Dynamic sitting means changing your sitting posture
frequently, or in other words shifting as often as
possible between the front and rear sitting posture.
You should therefore adjust the backrest dynamically.
"open up" is equipped with a "Similar" mechanism,
allowing you to adjust the backrest pressure as best
suits you. This ensures that the backrest and seat
automatically give your body support in every sitting/
lying position.

English 7