Apple MacBook (13-inch, Late 2009) Bedienungsanleitung PDF herunterladen (Seite 75)

Chapter 5 Last, but Not Least 75

Use a light touch when typing or using the trackpad and keep your hands and fingers

relaxed. Avoid rolling your thumbs under your palms.

Change hand positions often to avoid fatigue. Some computer users might develop

discomfort in their hands, wrists, or arms after intensive work without breaks. If you

begin to develop chronic pain or discomfort in your hands, wrists, or arms, consult

a qualified health specialist.

External Mouse

If you use an external mouse, position the mouse at the same height as the keyboard

and within comfortable reach.

Chair

An adjustable chair that provides firm, comfortable support is best. Adjust the height

of the chair so your thighs are horizontal and your feet are flat on the floor. The back of

the chair should support your lower back (lumbar region). Follow the manufacturer’s

instructions for adjusting the backrest to fit your body properly.

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Apple MacBook (13-inch, Late 2009) Bedienungsanleitung Seite 75