HP 720 Series Guide de l'utilisateur télécharger pdf (Page 173)

Appendix A | Ergonomics | 169

90º. Pull your chin in to look down, and try to lean back in the

chair. The backrest should support you in the hollow of your

back.

Reducing eye strain

Reducing eye strain Reducing eye strain

Reducing eye strain

Have your eyes checked on a regular basis and ensure your

eyeglass prescription is suitable for working on a computer

screen. Look away from the screen from time to time. Focus on

distant objects briefly. Blinking periodically helps to lubricate the

eyes.

Preventing muscle stiffness

Preventing muscle stiffnessPreventing muscle stiffness

Preventing muscle stiffness

Avoid holding your muscles tense for long periods of time. Keep

your fingers and body relaxed. Changing tasks frequently helps

prevent muscle stiffness. Alternating between typing, writing,

filing, and moving around in your work environment helps to

keep muscles loose.

Taking frequent short breaks

Taking frequent short breaksTaking frequent short breaks

Taking frequent short breaks

When you are required to work on your computer for prolonged

periods of time, take short breaks frequently. As a general rule, a

5- and 10-minute break every hour is a good idea. It is better to

take short breaks frequently than longer breaks less frequently.

Data shows that people who work for long periods of time without

a break are more prone to injury. Occasionally stretch the

muscles in your hands, arms, shoulders, neck, and back. You

should stretch at least once an hour.

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HP 720 Series Guide de l'utilisateur Page 173