12
Overall
:
Change your position frequently and take regular breaks to avoid fatigue.
Back
:
While sitting at your work surface, make sure your back is supported by the chair’s back-
rest. This should be in an erect position or angled slightly backwards.
Legs
:
Your thighs should be horizontal or angled slightly downward. Your lower legs should be
near a right angle to your thighs. Your feet should rest flat on the floor. If necessary, use a
footrest, but double check that you have your seat height adjusted correctly before getting
a footrest.
Arms
:
Your arms should be relaxed and loose, elbows close to your sides, with forearms and
hands approximately parallel to the floor.
Wrists
:
Your wrists should be as straight as possible while using the keyboard, mouse or trackball.
They should not be bent sideways, or more than 10 degrees up or down.
Head:
Your head should be upright or tilted slightly forward. Avoid working with your head or
neck twisted.
•
Hand rest:
2” – 4”
•
Viewing distance:
20” – 27.5”
•
Legroom (vertical):
minimum 25.5”
•
Legroom (horizontal): minimum
23.6”
•
Top line of screen at eye level or
slightly below.
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