Dell Latitude LM - Manual (Page 4)

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Ergonomic Computing Habits
For maximum comfort and efficiency, observe the fol-
lowing ergonomic guidelines when setting up and using
your computer:
• Position your computer directly in front of you as
you work.
• Adjust the tilt of the computer’s display, its contrast
or brightness settings, and the lighting around you
(such as overhead lights, desk lamps, and the cur-
tains or blinds on nearby windows) to minimize
reflections and glare on the display.
• When using an external monitor with your computer,
set the monitor at a comfortable viewing distance
(usually 510 to 610 millimeters [20 to 24 inches]
from your eyes). Make sure the monitor screen is at
eye level or slightly lower when you are sitting in
front of the monitor.
• Use a chair that provides good lower back support.
• Keep your forearms horizontal with your wrists in a
neutral, comfortable position while using the key-
board, touch pad, or external mouse.
• Always use the palmrest with the keyboard or touch
pad. Leave space to rest your hands when using an
external mouse.
• Let your upper arms hang naturally at your sides.
• Sit erect with your feet resting on the floor and your
thighs level.
• When sitting, make sure the weight of your legs is on
your feet and not on the front of your chair seat.
Adjust your chair’s height or use a footrest, if neces-
sary, to maintain proper posture.
• Vary your work activities. Try to organize your work
so that you do not have to type for more than a
minute or so at a time without stopping. When you
stop typing, try to do things that use both hands.
arms at desk level
computer positioned
directly in front of user
wrists relaxed and flat