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Espen Fredriksen
01-26-2006, 09:18 PM
Dear all.
Here is a summary of the responses i received on my posting regarding
marker placement and gait analysis on above knee amputees.
I would like to thank all who responded to my posting.

Regards Espen
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Summary:
The majority of the respones used the standard PiG/Helen Hayes/Golem
marker setup, whereas there were two alternative marker setups (see
paper references)
Accept from marker setup, there were some comments regarding the changes
of anthropometric properties when introducing a prosthesis, and problems
regarding inverse dynamics in the polycentric knee.
Furthermore, there were comments regarding the often debated
wand-aligments.

Paper references:

van der Linden ML, Solomonidis SE, Spence WD, Li N, Paul JP. A
methodology for studying the effects of various types of prosthetic
feet on the biomechanics of trans-femoral amputee gait. J Biomech. 1999
32(9):877-89.

van der Linden ML, Twiste N, Rithalia SV. The biomechanical effects of
the inclusion of a torque absorber on trans-femoral amputee gait, a
pilot study. Prosthet Orthot Int. 2002 26(1):35-43.

Miller L. and Childress D.S., "problems associated with the use of
inverse dynamics in prosthetic applications: An example using a
polycentric prosthetic knee", Robotica vol. 23 (2005), pp 329-335

Hillmann et.al. "Electromyographic and gait analysis of forty-three
patients after rotationplasty", J. of Bone Joint Surgery Am, 82:187-96,
2000

Hillmann et.al. "Rotationplasty Type B IIIa according to Winkelmann -
electromyography and gait analysis" Clin. orthopaedics and rel. res.
348, pp 224-231, 2001

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Espen Fredriksen, MSc Engineering Cybernetics
Department of Neuroscience
NTNU - Faculty of Medicine
MTFS, NO-7489 Trondheim, Norway
Phone: +47 73590866 / +47 41 24 03 90
Fax: +47 73598795