English 55
4 Working in Comfort
• 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
- Your arms should be relaxed and loose, elbows close to your
sides, with forearms and hands approximately parallel to the floor.
• Wrists
- Your wrists should be as straight as possible while using the
keyboard, mouse or trackball. They should not be bent sideways, or
more than 10 degrees up or down.
• Legs
- Your thighs should be horizontal or angled slightly downward.
Your lower legs should be near a right angle to your thighs. Your feet
should rest flat on the floor. If necessary, use a footrest, but double
check that you have your seat height adjusted correctly before
getting a footrest.
• Head
- Your head should be upright or tilted slightly forward. Avoid
working with your head or trunk twisted.
• Overall
- Change your position frequently and take regular breaks to
avoid fatigue.
Setting Up Your HP
Computing Equipment
Make sure that all the elements of your HP computer system—monitor,
document holder, keyboard, mice and other input devices, and
headphones and speakers—are optimally arranged and adjusted to
meet your personal requirements. The recommendations that follow
will help you achieve this.
gap.bk : wic-chap.fb4 Page 55 Friday, January 15, 1999 5:03 PM
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