This checklist can be used to
evaluate your working conditions. If you answer "yes"
to each question, then your office and job are well designed.
If you answer "no" to any question, steps should be
taken to correct situations which may increase the risk of developing
repetitive strain injuries (RSIs).
For information about possible
corrective actions, click here.
POSTURE
(when working at the computer)
Are your feet resting firmly
on the floor or footrest?
Are your knees bent at approximately
right angles?
Are your thighs parallel to the
floor, so that the chair does not put pressure on the backs of
your thighs?
Is your upper body straight,
with your lower back firmly supported by the chair backrest?
Are your upper arms hanging straight
down at your sides?
Are your elbows against your
sides and bent at right angles?
Are your forearms parallel to
the floor?
Are your wrists straight, neither
bent up nor down nor to the left or right?
Is your head looking forward,
with only a slight downward tilt?
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CHAIR
To achieve correct posture,
the chair and table heights must both be adjusted to fit the
user. If you are choosing new furniture, start with the chair.
The seat height should be adjusted so your feet rest on the floor
(or a footrest), your knees are bent at right angles, and your
thighs are parallel to the floor. Sitting in the chair, place
your arms as described above. Your hands will be in the position
they should be when the keyboard height is adjusted.
Is your chair easily adjustable
for seat height?
Can you easily adjust the chair
backrest up and down?
Can you easily adjust the chair
backrest forward and back?
Does the backrest firmly support
your lower back?
Does the chair have casters that
roll easily on the floor?
Is the front edge of the seatpan
rounded to avoid pressure on the backs of your thighs?
Does the chair swivel?
Is the chair base steady, with
five legs?
If your chair is adjustable,
do you know how to adjust it?
If you need one, do you have
a footrest that supports you feet fully?
Note: Chair armrests are optional,
if they can be adjusted to support the arms in the position described
above. If armrests interfere with the correct position of the
arms, they should removed.
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DESK AND TABLE
Is the height of the desk or
table on which the computer sits adjustable?
Is there enough room for your
legs to comfortably fit under the desk or table?
Is there enough space on the
desk or table for the computer screen and all the other things
you need to do your job comfortably (copy stand, desk lamp, telephone,
etc.)?
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THE COMPUTER KEYBOARD
Is the keyboard detached from
the screen?
Is the keyboard at the right
height so that your elbows are at your sides, your forearms are
parallel to the floor, and your wrists are straight?
Does the desk or table have a
special stand (such as a slide-out tray or attached stand) for
the keyboard to rest on so that the keyboard is lower than normal
desk or table height?
Is the keyboard thin and not
angled up too sharply?
Is the keyboard placed on a foam
pad to soften the impact of your fingers on the keys?
Are the springs in the keys stiff
enough to resist the weight of your fingers when relaxed?
Can you feel key pressure decrease
when the key has registered or can you hear a click when a key
has registered to stop you from pressing too hard?
Can your fingers reach the shift
and function keys without awkward straining?
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ACCESSORIES
Is a copy stand available, if
needed?
Are the copy stand and the computer
screen positioned at about the same distance from the eyes? (This
allows the eyes to stay focused at the same distance. Frequent
refocusing is fatiguing.)
If a wrist rest is used, is it
in a position that allows your wrist to float freely above the
keyboard while typing?
If a wrist rest is used, is it
used just while resting, not while typing?
Is a footrest available, if needed?
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LIGHTING
Less light is needed for conputer
work than for other kinds of office tasks. No windows or light
sources should be in front of or behind the computer operator,
in order to reduce glare. Overhead lighting should be indirect.
Can you see reflections of windows
or lights on the computer screen?*
Is there a bright light source
directly overhead?*
*A yes response to the questions
with asterisks is undesirable, because these conditions contribute
to eyestrain.
Do that walls have a non-glossy
finish?
Are desk lamps available to illuminate
your work area when room light is too low for reading documents?
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VISION
Are your reading glasses the
correct prescription for computer work?
Is the screen placed arm's-length
from your face?
Is the image on the screen sharp,
not blurry?
Does the image not flicker?
Is the data on the screen big
enough to be easily read?
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JOB DESIGN
Adjustable furniture and equipment
are not sufficient to prevent all repetitive strain injuries.
Other aspects of the job have also been shown to cause RSIs.
Does your job include a variety
of duties on and off the computer?
Is there a quota that you must
meet (such as a certain number of keystrokes per hour or a certain
number of calls per hour)?*
If yes, are you able to meet
your quota without experiencing headaches, extreme fatigue, pain
or numbness in your neck, shoulders, arms, hands?
Is your work electronically monitored?*
If yes, is the information used
to pressure you to work faster?*
If yes, does the computer collect
personal information?*
Does your supervisor listen in
when you are on the telephone?*
*Yes answers here are not desirable
because they may increase your risk of developing RSIs.
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BREAKS
Breaks are important for relieving
stress on the muscles, before they become too tired.
Do you have at least 15 minutes
break time after 2 consecutive hours of intensive computer work?
Can you get up and move around
whenever you feel any discomfort or pain?
Do you do any stretching exercises
during the day to relieve stress and reduce muscle fatigue?
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TRAINING
Have you had training on:
The hazards of computer work?
Proper work station design?
Good posture(s) for computer
work?
The need for appropriate reading
glasses for computer work?
How to adjust your chair?
How to adjust your computer screen?
Physical exercises to reduce
muscle tension and fatigue?
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(adapted from a factsheet prepared by the
Communications Workers of America, District One, 1997)
For information
about adjustments to reduce
ergonomic hazards, click here.
For links and news about ergonomics, click
here.
For Healthy Computing Email Tips,
click here.
The “This page was last updated on” line just below reflects the date on which this page was transferred to this redesigned website. The information in this page (as opposed to the design) was last updated on December 16, 2002.
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