Many thanks to those who replied to my request for those interested in
sharing their knowledge and experience with Working Model. The following
are replies I have received so far. I will follow up on the suggestions
made and then get back to the individuals listed and any others who would
like to communicate on Working Model 2D and 3D.

Original Message: We are currently working on competitive diving
simulations using Working
Model 2D by Knowledge Revolution. When I inquired about possible user
groups for this software, KR was not aware of any. We are wondering if
there are Working Model users on Biomch-L who might be interested in
communicating with one another with respect to their experience with this
software and particularly with the scripting feature.

Replies --

From: "N. Alberto Borghese"
We are interested indeed. would you like to start a mailing list?

From: Ton van den Bogert
It might be good to browse the database of the ISB Technical Group Computer
Simulation. There are about 100 members in this group. I have not heard of
anyone using Working Model 2D, but there is a lot
of technical expertise in this group. If you join the group, you can
initiate a technical discussion on the TGCS-L mailing list.

From: Richard Wells
Department of Kinesiology, Faculty of Applied Health Sciences
University of Waterloo, Waterloo Ontario, CANADA N2L 3G1
Voice: (519) 888-4567 Ext 3069 Fax: (519) 746-6776
I am using WM3D and would be interested in a user group in biomechanics.

From: "Wilson, Daniel J."
Director, Gait Analysis Laboratory, University of Missouri-Columbia
I am currently using working model 2D, then 3D to develop a model of the
lower extremities of the spine to the level of the 4th lumbar
vertebrae...the work has been slow, however, a colleage in engineering is
somewhat familiar with the program. It seems the greatest problem so far is
data entry of the large kinematic and kinetic files needed in biomechanical

From: Laboratório de Marcha AACD
Associaçao de Assistência à Criança Defeituosa
Wagner de Godoy,Mechanical Engineer
Gait Laboratory, AACD, Sao Paulo - Brazil
We are beginning studies to use WM 2d/3d to aid in the studies of gait
analysis (with theVicon 370/VCM system). We also intended to use WM for us
to make analyses of prostheses (knees). I hope we can share information
about the use of this program.

From: Adam Thrasher
I would be very interested in participating in a special interest group of
WorkingModel users. I have developed a few biomechanical models for
WorkingModel 3D, including automation scripts in Visual Basic. Please let
me know if I can do anything to help get a forum started.

From: Krystyna Gielo-Perczak
During this coming the XVIIth Congress of the ISB, on August 8-13, 1999,
in Calgary, I will present (Sunday, August 8, at the University of
Waterloo) the tutorial on "Application of Computer Simulation to the
Teaching of Biomechanics". I will use during my presentation the
simulation tools:Mathcad,Matlab, and Working Model. I think , that during
this tutorial will be an excellent time to organize an E-Forum on the
Biomch-L for who might be interested in communicating with one another with
respect to their experience with this software.

From: Bryan Finlay
Have you asked the same question on the Sportscience listserver? I'm not
sure whether you'll get a better response there.

Chris A. McGibbon, PhD
Massachusetts General Hospital, Biomotion Laboratory
40 Parkman St. Boston MA 02114
I have just begun using Working Model (and old version we've had kicking
around the lab) to simulate falls. I have spent many frustrating hours
trying to use the script feature, and ultimately ended up entering the body
segment geometry, inertial parameters and initial conditions manually (for
a 15 segment model!).
Despite it's appeal, and some interesting results from my simulations so
far, I've found it cumbersome and computationally slow for complex models
(such as a 15 segment human body with muscles and soft tissue contraints).
I've recently contacted a Knowledge Revolution sales rep to inquire about
an upgrade and was shocked at the price. However, the program appears to
have awsome potential and I would be very interested in communicating with
others who use it; perhaps mastering the scripting feature would make it's
use feasible.

From: David L Blievernicht
I have limited experience working with Working Model 2D. I have nothing to
contribute at the moment, but would appreciate being included in any list
you develop which shares info. I think, as you must, that the program has
some real possibilities for Biomechanics. Thanks for trying to get
something going.

George J Iwanski
Pioneer Surgical Technology
Marquette MI 49855
Yes, our company is starting to use WM and would like to find a group to
discuss issues with.

From: Arnold Mitnitski
Biomedical Engineering, Motor Control Lab
Ecole Polytechnique, Institute of Rehabilitation
Montreal, PQ, H3C 3A7, Canada Montreal,PQ, H3S 2J4, Canada
Tel.514) 340-4711 ext.4184 Tel.514) 340-2085 ext. 2098
Fax: (514) 340-4611 Fax: (514) 340-2154
E-mail: Homepage: |
I was using working model to simulate some simple movements and motor
control. To progrmm control I used Matlab and WM Scripts. The results were
encouraging for the relatively simple dynamics. Unfortunately during last
year I was quite busy with the other projects and left WM for a while. If
you want I could be more specific in terms of what has been done and what
the problems I faced.

From: Mariano Garcia
I did some simulation work in my thesis and am now working in Bob Full's
lab at UC Berkeley. I have used Working Model 2D and 3D and find that there
are a lot of people here in the Biology Department that use it also (Rodger
Kram, Claire Farley, etc) to model legged locomotion and other things. I am
not very familiar with the scripting features, since I find it much easier
to interface with MATLAB. But other people here are familiar with them.

From: "Antony Hodgson"
Tony Hodgson
I'm a mechanical engineering prof and have used WM in a design course. I
haven't yet applied it to biomechanics, but I'll be teaching a biomechanics
course next year and may well use it, especially if I know of some others
who have used it with whom I can exchange information. Please let me know
what response you get.

From: Paul Bourassa
Assoc. prof., University of Sherbrooke, Qc
Tel: 819-829-7131 fax: 819-829-7141
I would be interested in such a group, although my experience is more with
Autolev and Animake. Autolev is based on Kane equations (analog to Lagrange
equations) I have work on many models, some of which would be closed to
your diving problem.(squat jump, ski jump in 2d)

J R Strachan BEng MIPEM, Clinical Engineer
Directorate of Medical Physics and Clinical Technology, The Royal
Hallamshire Hospital
Sheffield S10 2JF UK
Tel 114 271 3138 Fax 114 271 3403
I am about to start using a suite of CAD and CAM software which will
include Working Model, in my role as clinical engineer in the medical
workshops of a large teaching hospital. As I am also the clinical engineer
in two local gait laboratories, I can see potential overlap in the use of
the software, and would be very interested in a user group.

Doris I. Miller Ph.D.
School of Kinesiology, 2142 Thames Hall
University of Western Ontario
London, Ontario, CANADA N6A 3K7
(519) 661-2111 X8360 (w) (519) 661-2008 (FAX)

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