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Your seat depth should allow your lower back to comfortably
contact the backrest. Make sure that the backs of your lower
legs do not press against the front of the chair.
T
Extend your lower legs slightly so that the angle between your
thighs and lower legs is 90° or more.
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Place your feet flat on the floor. Only use a footrest when
attempts to adjust your chair and workstation fail to keep your
feet flat.
T
Be sure that you have adequate clearance between the top of
your thighs and the underside of your workstation.
T
Use armrests or forearm supports to support your forearms. If
adjustable, the armrests or forearm supports should initially be
lowered while all the other adjustments discussed in this
appendix are made. Once all these adjustments are completed,
raise the armrests or adjust the forearm supports until they
touch the forearms and allow the shoulder muscles to relax.
Setting up a healthy work environment 89
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