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Office
worker syndrome
CORRECT POSTURE CHART
Screen:
Place the screen in such a way that the light
from lamps and windows is not reflected in
it.
Place the screen at a distance that does not
require effort to the eyes (45-60cm). When
using an old screen, it is necessary to sit
down an arms distance away and work with large
letters in order to reduce exposure to radiation.
The upper part of the screen should be slightly
higher than the direct line of sight.
 Shoulders:
If the keyboard is very high, the normal reaction
is to lift the shoulders; the tension to which
the muscles are submitted provokes aches in
the back, neck and shoulders.
Back:
The lower part of the back sustains the body,
and should rest against the back of the chair.
The higher part should also have some kind
of support in order to recline comfortably.
Wrists and Arms:
The arms should adopt a stretched posture,
parallel to the floor. The wrists should adopt
the same posture.
Thighs:
In order to avoid suffering problems in the
lower part of the back, the legs should form
an angle of at least 90º to the rest
of the body.
Distance between the worktop and the legs:
If there is no space between the thighs and
the desk when sitting in the correct position,
it is recommendable to raise the height of
the desk.
Feet:
They should be placed on the floor or on a
footrest.
| OBJECT OF THE
WORKPLACE |
CAUSES OF BAD
POSTURES |
BAD POSTURE |
| SCREEN |
At one extreme of the
table |
Turning of head, possible
turning of body |
| DOCUMENT |
On the table
On a book rest at a distance
|
Inclination and turning
of head, possible twisting and lateral
inclination of the body. Turning of
the head, possible twisting of the
body |
| KEYBOARD |
Attached to the screen
Very inclined Too high Large |
Arm stretch, possible
inclination of the body. Hand bent
back towards the forearm. Raised arm,
bending back of the hand. Possible
lateral deviation of the hand with
regards to the forearm |
| TABLE |
Small work surface
High (non-adjustable chair) High (adjustable
chair without footrest) Low Insufficient
space for legs |
Poor layout of elements.
Lack of support for forearms. Arm
raised, possible forward inclination
of the body. Thighs inclined downwards,
poor support for feet on floor. Increase
of curved spine, poor positioning
of the legs. Too far away from the
work elements. Inclination of the
body, stretching of the arms, leg
movement difficulties. |
| CHAIR |
Non-adjustable height
and/or inclination of back of chair.
Chair with back that rocks Non-adjustable
chair height |
Involuntary sliding
across floor on chair wheels Possible
poor support for back. Motionless
vertebral muscles. Raised arm, possible
forward inclination of the body. Motionless
leg muscles. |
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