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Dudley Tabakin
07-15-1999, 12:22 AM
Hello all Gait Analysis Laboratories,

I am an MSc student at the University of Cape Town in South Africa,
working under the direction of Professor Kit Vaughan. My thesis
research involves a comparison of different gait analysis software
packages to determine whether the results obtained from one can be
compared with those of another. The research will not assess whether
one package is better than another, but rather will compare the
results. The results obtained from the various gait analysis models
are often used in clinical assessments of pathological gait and
decisions on operative intervention. However, different models
obviously use slightly different mathematical methods.

I plan to gather 3D kinematic and force plate data on a set of normal
subjects. I will be using the Helen Hayes Hospital marker set with 15
markers. The primary format for these data will be C3D but it will, of
course, be possible to transform the data into other formats. (e.g.
the DST format, advocated by CAMARC). I would then like to feed the
same set of data into different packages and compare the kinematic
(primarily sagittal joint angles) and kinetic (primarily joint
moments) data. Oxford Metrics and Peak Performance have already
offered me temporary use of their gait analysis software packages and
I am hoping that I will also be able to process my data using the
QGait package from Qualisys and Orthotrak II package from Motion
Analysis Corporation.

I am therefore interested in hearing from you if you are using either
QGait or Orthotrak. The best way that my analysis could be
accomplished would probably be for me to send my data to you and you
pass it through your program and return it to me. I realise that this
is a sensitive issue, and I wish to emphasize that this is purely an
academic project. The results will, I believe, be of benefit to all
those involved in clinical gait analysis.

I look forward to your advice.

Yours sincerely

Dudley Tabakin

dudley@sports.uct.ac.za
Gait Laboratory
University of Cape Town
Sport Science Institute of South Africa
Cape Town
South Africa
Tel: +27 21 686 7330 ext. 257

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