become cold. Hand muscle activity is not sufficient to self heat them so most of it is
piped” to them.
pically only
ie Horse. Understanding aerobic
iochemistry can explain a mechanism that is slow and progressive and why working less
erobically and so out of equilibrium is likely the root cause of Overuse problems so
work that way may help us to avoid them in the future.
lems that are
ften cited as proof of keyboarding being the culprit. A study of Thoracic Outlet
ew Posture Syndrome.
It is worth explaining why some “so called” new ergonomic
It is designed to remove Static Posture, the need for any grip and to optimize
e working geometry of the hand and arm. This removes most of the muscular activity
who wish to
void clicking mouse buttons, or those that are unable to due to impairment or disability,
“
From a biochemical perspective, low blood flow and muscle activity is likely to be at
odds with our design. We always assume that we work aerobically as we ty
experience acute, non-aerobic states such as a Charl
b
a
avoiding postures that make us
Postural Compensation
may help to explain many neck and shoulder prob
o
Syndrome patients showed a noticeable degree of elbow abduction when using palm
down mice, which was reduced upon switching to an
AirO
2
bic™
mouse. It appears that
a lack of wrist twist, due to injury, will be compensated for by a posture that causes
abduction (sticking out) of the elbow so mechanically making it easier to place the hand
flat upon a palm down mouse. Continuous abduction puts strain on the rotator cuff and
so if the wrist injury is not treated and that posture maintained, then new damage can
occur and migrate into the shoulder and neck.
N
products, after a time, fail to fulfill their promise. Changing to a new posture (using a
device of a different design of mouse) relieves, short term, the stress on "distressed"
tissues. The initial relief outweighs any early fatigue sensations even if the new mouse
puts the hand in yet another but different bad posture that later damages a different group
of muscles. It is the technology equivalent of Postural Compensation.
Gripping t
he
AirO
2
bic™
mouse is not necessary and gripping any mouse is to be
avoided so is the first thing to learn “not to do” as you start the process of “Getting
Comfy”.
th
forward of the elbow used to “move a mouse cursor” (Though does still require buttons
to be clicked). This is the Functional Neutral Mousing Pointing Position.
Clicking
buttons manually cannot be performed and a Functional Neutral Posture
maintained. While it employees Dynamic Posture as described above, those
a
might wish to try the click-less software option that can be found on the CD provided.
The Virtually Hands Free™ Mousing System
.
Received a commendation for Ease of Use by the Arthritis Foundation in the US and like
AirO
2
bic™
mouse it meets the standards necessary for purchases to be compliant under
Section 508 of the 1998 amendments to the US Governments Rehabilitation Act.
(
www.section508.gov
). It is Universally Assistive technology in that is does not
discriminate on the basis of its appearance or in its use.
V 3.1: © Designer Applainces Inc 2002-2005
All Trademarks the property of their respective owners.
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