1. A method of designing a workstation comprising the steps of: determining a plurality of muscle loading profiles for a muscle of a worker using electrophysiological monitoring apparatus while the worker is performing a task at a workstation for a plurality of different worker and workstation relative positions; and selecting a worker and workstation relative position for extended use by the worker based upon the one of said plurality of relative positions producing a most desirable muscle loading profile for the worker during said determining step.