I've not found any "true" human forms to download. Not to mention, if they are out there, they would likely not be free. Our resolution was to physically model the particular form requiredand have the models scanned, converted and exported to ProE format.
If you have particular requirements (i.e. 5th percentile, 95th percentile), you may have to locate a physical model and have it scanned
REX Allows you to
<LI>Obtain point cloud management and refinement, facet modeling and refinement, robust curve creation, robust surface modeling and shape recognition tools.
<LI>Transform existing physical products in to 3D digital models.
<LI>Make modifications to these designs.
<LI>Create surface connections for curvature (G2) within the Restyle module.
<LI>Automatically generate curve-patch structures as well as surfaces directly on a facet model</LI>
if you want it be quick because for a limited time (31st March) you can save youself $10,000 and get it for $4,999 inseatd of $14,999
We had some models scanned and converted into ProE. The data is imported via neutral file, so it is just "dumb" data. I believe the company that provided us the service can also convert to a parametric file. If you would like the company contact let me know.