Setting Up a Healthy Work Environment A-5 Extend your lower legs slightly so that the angle between your thighsand lower legs is 90° or more. Place your feet flat on the floor. Only use a footrest when attempts toadjust your chair and workstation fail to keep your feet flat. Be sure that you have adequate clearance between the top of yourthighs and the underside of your workstation. Use armrests or forearm supports to support your forearms. Ifadjustable, the armrests or forearm supports should initially belowered while all the other adjustments discussed in this appendix aremade. Once all these adjustments are completed, raise the armrests oradjust the forearm supports until they touch the forearms and allow theshoulder muscles to relax.
