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Lipoatrophia Semicircularis, a condition increasingly detected amongst
female office workers, is characterized by the appearance of indentations, usually in one or both thighs, as a result of a localised loss of subcutaneous fat.
The condition is caused by interactions with electric fields, generated in the work space by varios mechanisms.
A study of the electromagnetic environment in your office easily reveals the causes of existing cases, or
whether your staff are at risk of contracting the condition.
problem has been diagnosed, it is very often a simple and inexpensive
matter to remedy the situation.
At Radiansa Consulting we have studied hundreds of cases of L.S. since 2007, and we can guarantee successful solutions.
Please contact us for a quotation.
More information and quotations
While the biological mechanisms responsible for the appearance of the lesions associated with L.S. are still not clearly understood, the environmental factors
that cause the condition are known to be multifactorial,
and involve the interaction of electrostatic charges generated on the worker's body through normal actions
and movements, with low frequency electric fields generated in the office furniture, generally the desk, due to inductive coupling with with
such as power cables, unearthed equipment, etc.
The lesions are not pressure-induced, as has been reported in the past, although sustained pressure between limbs and office furniture may temporarily induce similar indentations to those caused by Lipoatrophia.
Every case of L.S. is associated with an anomalously high electric
field in the work post, generally at the edge of the desk. Modern
desk surfaces are made with a synthetic resin, and have a small but measurable
surface conductivity which acts to reduce the accumulation of static charges
on the desk surface. However, this small surface conductivity is sufficient
for the desktop to generate an maintain a weak electric field due to coupling
with nearby voltage sources. In many cases, the potential is generated
in the metallic support structure of the table, due to coupling with nearby
power cables, which in turn generates an electric potential in the synthetic
desktop. In other cases, a potential may be induced directly in the desktop
due to an unearthed electric device, such as PC, positioned on the desk
This latter case is illustrated in the graphic below; an unearthed PC
operated at 230V will have a 115V AC potential on the metal case. This
potential generates a weak and otherwise harmless electric field on the
surface of the desk, but the electric field strength on an object increases
with its radius of curvature, and thus relatively large fields (hundreds
of volts per meter) can be generated at the edge of the desk, as illustrated
in the graphic.
In many workplaces, the action that generates the largest static potential
on the body is the action of raising oneself from the chair. This simple
action can generate static charges in the chair and body in the region
of 20,000V in quite unexceptional circumstances; such a static potential
can be considered as quite normal. In workplaces with low relative humidity
and with high resistivity flooring, this potential can reach even higher
values. The charges thus produced interact with the AC electric field
induced in the desktop, creating an extremely high localized electric
field at the point of closest approach to the desk - generally at a high
of 72 cm (standard desk height) on the thighs.
Note that the generation of static charges is a normal process, and while
it may be desirable to reduce the generation of static electricity for
other reasons such as comfort, by far the most effective way to eliminate the cause of
L.S. is to reduce electric field anomaly, which is generally a simply and
inexpensive process. Of course, it is generally desirable to reduce excessive amounts of static
charge generation in workposts for a variety of reason, and especially in the work posts of recovering L.S. cases.
Please feel free to contact
us with your inquiry.
(+44) 1272 25 19 25
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