AlphaSmart 3000 71
below, it should help you achieve such an environment and minimize the
risk of physical stress that may cause injury.
Positioning of the AlphaSmart 3000
The AlphaSmart 3000 should be located in front of you and at a
comfortable distance so that your arms and hands are resting in a relaxed
and ready position at your sides. Choose a work area that can accommodate
your AlphaSmart 3000 and any additional materials.
Furniture and Posture
Adjust your workstation to be physically comfortable and to allow your
body to work in a relaxed and efficient manner. If your table and/or chair is
adjustable, adjust the height and angle so that your forearms and wrists are
straight and parallel to the floor, and your feet are flat on the floor (use a
footrest if necessary). The back of your chair should be adjusted to support
your lower back while working. Position your chair to avoid undue pressure
on the underside of your thighs near your knee and the backs of your lower
legs.
In working, you should use a comfortable, upright position. Try not to lean
forward, backward, or to the side while working. Materials should be
within reach and frequently needed materials should not be located in an
area where a twisting motion is required.
Hand and Arm Position and Motion
In using your AlphaSmart 3000, you should keep a relaxed, comfortable
position that follows the suggestions discussed in this section. While
working, your elbows may lightly touch your sides, but should not exert
pressure against your body. Your wrists should be in a comfortable, straight
position. Try not to arch or bend your wrists while typing as this may place
strain on your wrists. Rest your hands on a palm rest or on the table (if you
do not have a palm rest). When typing, use a minimum degree of force and
avoid hitting the keys with more force than necessary.
Lighting
Like your workstation and posture, your lighting should be adjusted to
accommodate your use of the AlphaSmart 3000. Adjust the lighting sources,
AS3000UG.book Page 71 Tuesday, June 25, 2002 12:19 PM
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