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Appendix A
Ergonomics
This chapterprovides guidance and hints to help you work in
a comfortable and ergonomically low-risk environment. If you
experience pain or discomfort while using this or any other
equipment, you should stop working and review this chapter.
If the discomfort continues, stop using the equipment and
consult a doctor as soon as possible.
Setting up and using equipment
Some people experience physical discomfort while using
computers. Sometimes this discomfort leads to Repetitive
Strain Injury (RSI), also known as cumulative trauma
disorder or repetitive motion injury. Setting up and using
equipment properly can help minimize this discomfort.
Well-designed and properly adjusted equipment may not be
sufficient to eliminate all potential problems. How you
perform your computer activities is also important.
What is RSI?
RSI is a type of injury caused by the irritation or inflamma-
tion of soft tissues such as muscles, nerves, or tendons. In
extreme cases, this irritation can lead to permanent tissue
damage. RSI has been a documented problem for workers
performing specific tasks such as assembly line work,
meatpacking, sewing, playing musical instruments, and
working with a computer. It may also result from other
activities, such as tennis.