HP 720 Series Guide de l'utilisateur télécharger pdf (Page 172)

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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

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