30 July 1993

Dear BIOMCH-L Members,

We are interested in studying motion in the shoulder complex
in both the normal and spinal cord injured populations.

There are two aspects of this research that we are interested
in receiving feedback on: first, given the rather complex
nature of the anatomical structures involved, can someone
suggest the best way to accurately measure the kinematics of
the structures? We have access to a 3-D system (Motion
Analysis Corp.), but we see a real problem with markers
on the skin over, in particular, the scapula. Another
technical problem is that of assessing the strength of
muscles in this region, and any ideas here would be greatly
appreciated.

The second aspect relates to the modelling of shoulder movement.
Since our ultimate goal is to be able to simulate the shoulder
movement of a person with a complete spinal cord lesion at each
of the C5, C6 and C7 levels, taking into account motor deficits
at each type of injury, are there any good or similar models
available?

A final request pertains to locating a copy of a doctoral
dissertation (or getting in touch with its author). The
information we have is as follows:

Van der Helm, FCT 1991: The shoulder mechanism: A
dynamic approach. PhD Thesis, Faculty of Mechanical
Engineering and Marine Technology, Delft University
of Technology, The Netherlands.

Thank you for your attention. If we receive any responses, we will
be sure to post them on this list.

Drew Smith, PhD AWSMITH@UTCC.UTORONTO.CA



************************************************** ************************
* Andrew (Drew) Smith, Ph.D. | INTERNET: awsmith@utcc.utoronto.ca *
* Director of Research | BITNET: awsmith@utorgpu *
* Lyndhurst Spinal Cord Centre | *
* 520 Sutherland Drive | Home Address: *
* Toronto ONT Canada M4G 3V9 | 33 Ponymill Drive *
* (416) 422-5551 x3041,3040 | Scarborough ONT Canada M1V 2X9 *
* (416) 422-5216 FAX | (416) 609-0469 *
* "Damn the torpedoes....full steam ahead!" *
************************************************** ************************