Dell OptiPlex GX400, Руководство пользователя

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Use a chair that provides good lower back support.
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Keep your forearms horizontal with your wrists in a neutral, comfortable position while using the keyboard or mouse.
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Always leave space to rest your hands while using the keyboard or mouse.
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Let your upper arms hang naturally at your sides.
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Sit erect, with your feet resting on the floor and your thighs level.
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When sitting, make sure the weight of your legs is on your feet and not on the front of your chair seat. Adjust your chair's height or use a footrest, if
necessary, to maintain proper posture.
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Vary your work activities. Try to organize your work so that you do not have to type for extended periods of time. When you stop typing, try to do things
that use both hands.
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