@Xi Computer Corporation MTower, Руководство пользователя

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Xi® MTower™ - NTower™ - NetRAIDer™
Page 67
Seating Arrangement
Your chair should fit your body size and shape, and adjust for different activities
(such as typing, writing, and talking on the phone). Your chair should help you
maintain your spine's natural curves. Alter your working positions throughout the
day and vary the tasks you do so you're not in any one position too long.
You should be able to sit all the way back against your chair's back and be able to
move your knees and lower legs freely. The seat should be low enough for your
feet to rest flat on the floor, yet high enough to support your thighs. Choose a chair
that you can adjust to suit your body, instead of changing your posture to fit the
chair. Chairs with multiple adjustments are beneficial.
The chair should provide support to your lumbar region (at your waist). If you
recline even slightly, you should have support for your mid back, at the base of
your shoulder blades. Ultimately, the design of your chair, and how well you use it,
can have a significant effect on your comfort and health.
The arm rests on your chair should be high enough to support your forearms, but
not so high as to raise your shoulders. Arm rests should also be positioned directly
under your arms and should not bump against your work surface as you move
close to it.
Taking frequent breaks from sitting. Stand up from time to time and move your
head, neck, shoulders, arms, and legs in a simple routine. Move your body to work
out the kinks.
Work Surface
Like office chairs, desks and other work surfaces are available in an assortment of
configurations, ranging from basic, utilitarian models to complicated designs with
adjustable shelves and cubbyholes. If possible, choose one that is appropriate for
your body size and make sure that there is ample work area for your monitor,
keyboard, and other peripherals. You also need room for things like a telephone,
lamp, and desk accessories.
If you use a desk, there should be at least two inches of clearance between the tops
of your thighs and the underside of the desktop or the keyboard tray.
Keyboard trays are helpful, particularly for desks that are not adjustable. If you use
one, make sure it has enough room for your keyboard and pointing device. Your
desk or keyboard tray should leave enough clearance for your thighs but should
not be so high that your wrists bend upward or you raise your forearms.