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• Remember to occasionally shift position and
move your body. Keeping your body in one
position for long periods is unnatural and
stressful. When prolonged work is required, take
frequent short breaks. As a rule of thumb, a five
or ten minute break every hour is a good idea.
Short frequent breaks are more beneficial than
longer, less frequent, breaks. Data shows that
people who work for long periods of time without
a break may be more prone to injury.
• Changing tasks frequently will help prevent
muscle stiffness. For example, alternating
between keyboarding, reading, writing, filing, and
moving around in your work environment helps
you maintain a relaxed posture. Occasionally
stretch the muscles in your hands, arms,
shoulders, neck, and back. You should stretch at
least as often as you take brief task breaks — at
least once every hour.
• Discomfort may be alleviated by using
alternative ergonomic designs and accessories
such as ergonomically personalized chairs, palm
rests, keyboard trays, alternative input devices,
prescription eyeglasses, anti-glare screens, and
more. Seek additional information from the
sources available to you, including your
employer, doctor, local office supply store, and
the information sources provided in this guide.
•
Chapter 1
Preparing to Use Your Computer
23
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