You may also want to consult the following website:  www.acc.co.nz/PRD_EXT_CSMP/groups/external_providers/documents/guide/wcmz002335.pdf

for an excerpt from Matheson LN.  Chapter 18:  Functional Capacity Evaluation. pp168-188.  IN:Demeter SL Anderson GBJ Smith GM. Disability Evaulation.  Mosby.  American Medical Association. 1996

Barry:

You are correct.  There are three types of power grips:  Cylindrical, Spherical, and Hook.  Some describe a 4th type, Lateral Prehension.  I refer you to the following:

Long, C., et al.:  Intrinsic-extrinsic muscle control of the hand in power grip and precision handling. J. Bone Joint Surg.  52A:  853, 1970.

Is there an ergonomics question in there somewhere?  Just to let you know,  from personal experience,  I have never known a physician that didn't think that he was smarter than his peers or mentors in some way or another.  It takes a lot of guts to take over reponsibility for the life of another being.  If you all weren't so cocky, there would be a lot less idiots around to respond to posts like this.  Speaking for the rest of us,  I hope you are better educated than your mentors.  Keep up the hard work!

As far as I know, frequency classifcation and physical demand categorization are based on an what can be accomplished in an hour.  Your may want to refer to the US Department of Labor's Dictionary of Occupational Titles for confirmation.

I agree.  Determine METS and correlate with Physical Demand Category.

Can you clarify your question?  Are you looking for fitting instructions for off-the-orthotics or something more custom?