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during activities. You should take into account any undesirable factors,
such as the lack of any posture support, support which is in the wrong
place, and attempt to prompt reflex activity whilst sitting.
•
Likewise, the use of any major back adjustments, lateral movements of
the torso, or slouching will affect the position of the head in relation to
the head support. This is not desirable; the system will perform better if
the user adopts more or less the same posture over a period of time. If
regular variations in sitting are frequent, you should consult the supplier
of the seating system.
•
If the user regularly experiences problems keeping the head in the
correct position, there is an optional electrical
headsupportadjustment
mechanism
. This enables the user to move the position of the
head support dynamically. Focal supplies head support adjustment
mechanisms in a variety of models.
•
The position of the head support is usually determined on the basis
of the ideal torso position. As a result, this might mean that the head
support has to be fitted slightly off-centre in relation to the (wheel)
chair’s backrest.
A
B
C
•
Once installed, the head support should not
exert any pressure on the following:
A
the
temple;
B
the lower jaw;
C
the bone behind the
ear and the ear itself.
