HP Vectra XU 6/XXX HP Vectra XU 6/xxx Pc User’s Guide - d4369-90001 - Page 35

Your Posture, Your Workspace and Work Environment

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2 Using Your PC Working in Comfort Your Posture While sitting at your workstation, your back should be erect or angled slightly backwards. Your back should be supported by the backrest. Your arms should be relaxed and loose, elbows close to your sides, with the forearms and hands approximately parallel with the floor. Your wrists should be as straight as possible while using the keyboard, mouse, or trackball. They should not have to be bent upward, downward, or to either side more than 10 degrees. Your thighs should be horizontal or bent slightly downward. Your lower legs should be near a right angle to your thighs. Your feet should rest comfortably on the floor (flat). If necessary, use a footrest to get into a comfortable position. Your head should be upright or tilted slightly forward (but not more than 15 degrees). Avoid working with your head or trunk twisted in an unnatural position. Change your position frequently to avoid fatigue. Your Workspace and Work Environment To prevent muscle stiffness, you must have enough space to move around and vary your position. Do not remain in one position for extended periods of time. For better eye relief, the ceiling, walls, and floors should have a medium level of reflectance (approximately 75%, 40%, and 30% respectively). Try to avoid excessive contrast between the screen and its surroundings. The work environment should be as quiet and free of distraction as possible (background noise preferably below 55 dBA). Where possible, relative air humidity should be in the range of 40 to 60%. English 23

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English
23
2
Using Your PC
Working in Comfort
Your Posture
While sitting at your workstation, your back should be erect or angled
slightly backwards. Your back should be supported by the backrest.
Your arms should be relaxed and loose, elbows close to your sides, with
the forearms and hands approximately parallel with the floor.
Your wrists should be as straight as possible while using the keyboard,
mouse, or trackball. They should not have to be bent upward,
downward, or to either side more than 10 degrees.
Your thighs should be horizontal or bent slightly downward. Your lower
legs should be near a right angle to your thighs. Your feet should rest
comfortably on the floor (flat). If necessary, use a footrest to get into a
comfortable position.
Your head should be upright or tilted slightly forward (but not more
than 15 degrees).
Avoid
working with your head or trunk twisted in an unnatural
position.
Change your position frequently to avoid fatigue.
Your Workspace and Work Environment
To prevent muscle stiffness, you must have enough space to move
around and vary your position. Do not remain in one position for
extended periods of time.
For better eye relief, the ceiling, walls, and floors should have a
medium level of reflectance (approximately 75%, 40%, and 30%
respectively). Try to avoid excessive contrast between the screen and
its surroundings.
The work environment should be as quiet and free of distraction as
possible (background noise preferably below 55 dBA).
Where possible, relative air humidity should be in the range of 40 to
60%.