Alienware Sentia 3450 Technical Reference
10
Developing Good Work Habits
Developing good work habits is important if you need to work in front of the computer
for long periods of time. Improper work habits can result in discomfort or serious injury
from repetitive strain to your hands, wrists or other joints. The following are some tips
to reduce the strain:
• Adjust the height of the chair and/or desk so that the keyboard is at or
slightly below the level of your elbow. Keep your forearms, wrists, and hands
in a relaxed position.
• Your knees should be slightly higher than your hips. Place your feet flat on the
floor or on a footrest if necessary.
• Use a chair with a back and adjust it to support your lower back comfortably.
• Sit straight so that your knees, hips and elbows form approximately
90-degree angles when you are working.
• Take periodic breaks if you are using the computer for long periods of time.
Remember to:
• Alter your posture frequently.
• Stretch and exercise your body several times a day.
• Take periodic breaks when you work at the computer for long
periods of time. Frequent and short breaks are better than fewer
and longer breaks.
Lighting
Proper lighting and comfortable display viewing angle can reduce eye strain and
muscle fatigue in your neck and shoulders.
• Position the display to avoid glare or reflections from overhead lighting or
outside sources of light.
• Keep the display screen clean and set the brightness and contrast to levels
that allow you to see the screen clearly.
• Position the display directly in front of you at a comfortable viewing distance.
• Adjust the display-viewing angle to find the best position.
