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168 HP Jornada 700 Series Handheld PC
many uninterrupted repetitions of an activity or motion,
performing an activity in an awkward or unnatural posture,
maintaining static posture for prolonged periods, failing to take
frequent short breaks, and stress. Certain medical conditions,
such as rheumatoid arthritis and diabetes, may contribute to
RSI.
RSI symptoms
RSI symptomsRSI symptoms
RSI symptoms
By following the guidelines on proper setup and use of equipment
and work environment, the risk of developing RSI can be
minimized. However, if you experience any discomfort, seek
professional advice immediately. Typically, the earlier a problem
is diagnosed and treated, the easier it may be to resolve.
Avoiding RSI
Avoiding RSIAvoiding RSI
Avoiding RSI
Recent literature suggests that there may be a relationship
between injury to soft tissues, especially in the hands and arms,
and the prolonged use of keyboards or other equipment requiring
repeated motion of the hands and forearms. Literature also
suggests that there are many other risk factors that may increase
the chances of such soft-tissue injury. You can minimize the risk
of suffering from RSI by following the guidelines detailed in this
chapter.
Setting up your working environment
Setting up your working environment Setting up your working environment
Setting up your working environment
You must have enough space to move around and vary your
position. To avoid eyestrain, the ceiling, walls, and floors should
have a medium level of reflectance (approximately 75 percent of
ceiling reflectance, 40 percent of wall reflectance, and 30 percent
of floor reflectance). Try to avoid excessive contrast between the
screen and its surroundings. The work environment should be as
quiet and distraction-free as possible, with background noise
below 58 dBA. Where possible, relative air humidity should be in
the range of 40 to 60 percent. Recommended room temperature is
19 to 23 ºC (66 to 73 ºF). If possible, adjust the temperature to a
comfortable level. The workplace should be well ventilated.
Pay attention to your posture; relax your shoulders and keep your
wrists straight. This is easier when your keyboard can be
positioned right under your hands while bending your elbows at