HP Pavilion N3210 Setup Manual page 45

Using Your HP Notebook PC
Working in Comfort
Work Surface Height: Adjust either your seat height, work surface, or both, to
position the work surface at approximately elbow height.
Work Surface Arrangement: Make sure frequently used equipment is within easy
reach. For example, if you are primarily using the keyboard, place it directly in front
of you, not to the side. If you are primarily using the mouse, place it in front of your
hand or arm. If you are using both a mouse and keyboard, place them both at the same
work surface height and close together. If a palm rest is used, the height should be
flush with the front edge of the keyboard. Other items, such as your telephone or
notepad, also should be considered.
Monitor: Place your monitor so that the top of the screen is at, or slightly below, eye
level (up to 15 degrees).
Head: Do not tilt your head forward by more than 15 degrees, and try not to turn
your head toward the side.
Back: While sitting at your work surface, make sure your back is supported by the
chair's backrest in an erect position or angled slightly backwards.
Arms: Make sure your arms and elbows are relaxed and loose, with your upper arm
perpendicular to the floor or slightly forward. Keep your forearms and hands
approximately parallel with the floor with elbows bent between 70 and 115 degrees.
Keep your elbows close to your sides (less than 20 degrees away from your body).
Legs: Your thighs should be horizontal or angled slightly downward. Your lower
legs should be near a right angle to your thighs. Make sure there is sufficient room
under the work surface for your legs.
Feet: If after adjusting your chair you cannot rest your feet comfortably on the floor,
use a footrest, preferably one that can be adjusted in height and angle.
Overall
Look away from the screen from time to time to help reduce eyestrain. Focus on
distant objects briefly, and blink periodically to lubricate your eyes. You also should
have your eyes checked on a regular basis and ensure your eyeglass prescription is
suitable for working on a monitor screen.
Remember to occasionally shift position and move your body. Keeping your body in
one position for long periods is unnatural and stressful. When prolonged work is
required, take frequent short breaks. As a rule of thumb, a five- or ten-minute break
every hour is a good idea. Short, frequent breaks are more beneficial than longer less
frequent breaks. Data show that people who work for long periods of time without a
break may be more prone to injury.
Setup Guide 45