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Adjust the height of the chair’s seat such that the thighs are
horizontal while the feet are flat on the floor.
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Adjust the seat
pan depth such that your back is supported by the chair backrest while
the back of the knee is comfortable relative to the front of the seat.
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Adjust the
backrest vertically so that it supports/fits the curvature of your
lower back.
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With your arms
at your sides and the elbow joint approximately 90 degrees, adjust the
height/position of the chair armrests to support the forearms.
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Adjust the
height of the keyboard such that the fingers rest on the keyboard home
row when the arm is to the side, elbow at 90 degrees, and the wrist
straight.
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Place the mouse,
trackball, or special keypads next to the keyboard tray.
Keep the wrist in a neutral position with the arm and hand
close to the body.
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Adjust the
height of the monitor so that the top of the screen is at eye level.
If bifocals/ trifocals are used, place the monitor at a height
that allows easy viewing without tipping the head back.
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Place reference
documents on a document holder close to the screen and at the same
distance from the eye.
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A footrest may
be necessary if the operator cannot rest his or her feet comfortably
on the floor.