 |
|
Most people spend
many hours of every
day at their computers,
whether for work,
school, emailing,
surfing the internet,
or gaming.
There are also increasing
numbers of laptop
users, due to their
easy portability
and variety of accessible
programs With
this explosion in
computer usage has
also come a great
increase in computer-related
injuries, including
among children and
teens. While laptops
are designed less
ergonomically than
standard desk mounted
computers, combining
proper equipment
placement, viewing
angle and typing
height of your laptop
with proper keyboard
posture can significantly
reduce muscular-skeletal
strain in muscles
and joints of shoulders,
neck, back and arm.
Because the laptop
computer screen
and keyboard are
connected as one
unit, establishing
a proper viewing
and keyboarding
position can be
difficult. Incorrect
set up creates the
potential for developing
any of numerous
painful and inconvenient
computer injuries
that are generally
referred to by titles
of Repetitive Stress
Injuries (RSI),
Cumulative Trauma
Disorders (CTD),
and Computer Vision
Syndrome (CVS).
In addition to posture
and office set up,
your work requirements
and office environment
may benefit by using
ergonomic accessories
such as a laptop
desk, laptop stands,
laptop drawer. Very
useful tips for
using your laptop
follow. There are
also adjustable
laptop computer
arms that can be
clamped to your
wall, pole, or a
desk. By clicking
on the laptop accessories
overview link to
the right, you'll
be able to view
our entire line
of laptop workstation
accessories:
|


|
|
|
|
|
|
|
|
Laptop computers,
also known as notebooks,
are not recommended
for use as primary
computers that are
used for numerous
hours everyday.
However, they have
been adopted for
just that purpose
by thousands of
people.
-
- The design
and construction
of laptops violates
a basic ergonomic
requirement
for computer
usage, namely
that the keyboard
and screen can
be positioned
independently
for appropriate
viewing and
typing. In the
very early days
of personal
computing, desktop
devices also
had the screen
and keyboard
integrated as
a single unit,
and this resulted
in widespread
complaints of
musculoskeletal
discomfort.
By the late
1970's a number
of ergonomic
design guidelines
were written
calling for
the separation
of screen and
keyboard. The
reasoning is
simple. With
a fixed design,
if the keyboard
is in an optimal
position for
the user, the
screen isn't,
and if the screen
is optimal the
keyboard isn't
going to be
placed properly.
Even contemporary
laptop designs
fail to satisfy
this basic ergonomic
positioning
requirement,
which means
that users must
pay special
attention to
how they use
their laptop
in order to
avoid muscular-skeletal
disorders, headaches,
fatigue, and
similar complaints
that result
from non-ergonomic
computer use.
-
- Are
you an occasional
user who works
on your laptop
for short periods
of time or less
than two hours
per day? Are
you a full-time
user whose laptop
functions as
your main computer?
Occasional users
will have less
risk of injury
than full-time
users, but all
users should
pay attention
to how they
use their laptop
computers.
-
- As explained
above, laptops
violate basic
ergonomic design
requirements,
so using a laptop
results in some
tradeoff between
either poor
neck/head posture
and poor hand/wrist
posture.
|
- Because the neck/head position is determined by the actions of large muscles, people who use their computers occasionally for short periods of time less than two hours can more easily compensate for neck posture than arm and wrist posture. Examples include:
-
Find a comfortable, adjustable chair that allows you to recline very slightly.
-
Angle the laptop screen so you can easily view the images with the least amount of neck deviation
|
- Many people use these portable computers as fulltime laptop workstations. If you use your laptop frequently and for periods of longer than two hours, as is typical in workplace settings where a notebook computer may be the employee's main computer, begin to sit in a correct computer posture consistently and utilize other ergonomic practices, including the following:
-
Position the laptop on your desk/work surface directly in front of you.
-
Set the unit's height and screen angle so the images can be easily read without bending your neck. This may require that you elevate the laptop off the desk surface using a stable support surface, such as a computer monitor pedestal.
-
If your desk height is satisfactory for your screen's placement, attach a separate, full sized keyboard to your computer and use an independent mouse rather than the touch pad, trackball, or small joystick incorporated into your keyboard. Connecting ports for a keyboard and mouse can usually be found in the rear or side of your computer. However, there wireless devices have become increasingly popular.
-
Place the separate keyboard on a negative-tilt keyboard tray connected beneath your desk surface. This helps ensure a neutral wrist posture.
-
The mouse can be placed on an adjustable position mouse platform.
-
Shoulders should be in a relaxed position and arms at your side, with elbows at a 90° position when typing. (Arms should not be splayed wide or extended to reach and use the mouse)
-
Sit in a comfortable, adjustable chair with lumbar support and which allows you to sit at a slightly reclined position. This takes much weight off muscles and joints in the low back.
-
Take "microbreaks" every half hour or so (including moving your eyes off the screen image to rest on distant objects for several seconds), perform desk stretches (neck, shoulder, arm, and leg stretches) at your desk occasionally, and get up from your desk to move around or perform standing stretches every couple of hours.
-
Follow the guidelines outlined in Ergo In Demand's "Ergonomic Design For Your Computer Workstations"
|
|
|
|
-
- Laptops are
available with
screens as large
as 17". However,
bigger is not
always better.
Consider your
likely usage.
The larger the
screen the more
difficult it
may be to use
your laptop
in mobile locations,
such as airplanes
or trains. On
the other hand,
if you enjoy
DVDs, "wide
screen" laptops
are also be
proportioned
with screens
of less height
but wide viewing
for DVD convenience.
There are a
number of smaller
notebooks and
ultra portable
laptops on the
market that
provide more
compact portability
and lighter
weight. Consider
issues of screen
size and screen
resolution,
as well. A small
screen (e.g.12.1")
will be useful
in mobile settings,
but if the resolution
is high (e.g.
XGA - 1024 x
768), make sure
that you can
read the screen
characters and
can easily use
the input device
to point to
areas on the
screen. The
smaller the
laptop, the
smaller the
keyboard, so
make certain
that you can
comfortably
type on a keyboard
that may be
only 75% the
size of a typical
laptop's keyboard.
-
- People who
travel frequently
and use their
laptops on the
road must consider
the weight of
the system they'll
be carrying.
By "system"
we mean the
weight of the
laptop plus
the required
accessories
(e.g. power
supply, spare
battery, external
disk drive,
printer, etc.).
Many lightweight
portables can
become as heavy
as larger laptops
after you add
all the components
into your carrying
bag. If
your laptop
and components
weighs 10lbs
or more, certainly
consider using
a pull-along
laptop carry-on
bag. If
you prefer a
smaller bag
and can comfortably
carry your laptop,
select a bag
that is quality
designed for
that purpose
and features
a well padded
shoulder strap
system.
For more important
information on computer
posture or how to
select, work and
transport a laptop
or notebook computer,
check out the the
following:
|
|
|
About Ergo In Demand
Since June 1, 1985,
we have been at
the forefront of
ergonomic designs
that have been proven
and that work.
We supply a broad
range of quality
computer equipment
and accessories
including a large
variety of
laptop accessories.
Our laptop stands
feature height adjustability
and tilt options
for maximum comfort.
Ergonomic laptop
desks are all mobile,
built for classroom
and office use.
We offer a wide
selection of
keyboard trays and
keyboard drawers,
all with ergonomic
features. For more
ergonomic computer
office product ideas
visit our sections
computer filters,
ergonomic accessories
and
economy line.
All our products
are fully warranted
for manufacturing
and workmanship
and are carefully
inspected before
leaving our warehouses.
|
|
|
|
|
|
|
|
|
|
<
back to top
>
© Copyright 2000 to 2009 ~ Ergo In Demand, Inc. ~ 4900 Industry Drive, Central Point, OR 97502 |
|
|
|