PDA

View Full Version : Summery of query: center of pressure deviation during gait withinverted or everted hindfoot



rwang69
04-21-2010, 10:18 PM
Dear Biomech-L subscribers,

Here is the reply for my query about center of pressure deviation during
gait with inverted or everted hindfoot. Thank all of you for great help!


------
Ruoli Wang
MSc., PhD candidate
Department of Mechanics Email: ruoli@mech.kth.se
Royal Institution of Technology, KTH Tel: +46 8 790 7197
Osquars Backe 18 Fax: +46 8 723 04 75
SE-100 44, Sweden



Reply 1

Ruoli,

I would recommend looking at the Center of Pressure Excursion Index
(CPEI), developed by Song et al., in 1996 (Foot type biomechanics.
comparison of planus and rectus foot types. Song et al. J Am Podiatr Med
Assoc.1996; 86: 16-23) They studied walking, but it may work in rearfoot
strikers during running.

Best,

Smita

Reply 2

I have some data regarding high-arched (inverted) and low-arched
(everted) female athletes and I'd be willing to share that COP data with
you.
DP

Douglas Powell
Rehabilitation Science Research Laboratory
Dept. of Physical Therapy
Creighton University
Email: douglaspowell@creighton.edu

Reply 3


Dear Ruoli

Following on from your question posted on Biomch-l, you may be
interested in the PhD produced by Friso Hagman – Can Plantar Pressure
predict foot motion? – See attached document for PhD cover image.

Kind regards

Ian

Ian Steward BSc MSc Biomechanics

Technical Director

RSscan Lab Ltd

14 Pegasus

Orion Avenue

Addison Way

Great Blakenham

Ipswich

IP6 0LW

T: 0845 1180020

M: 07890 832359

E: ian@rsscan.co.uk

W: www.rsscan.co.uk

Reply 4

Ruoli:

Friso Hagman, PhD, a biomechanics researcher from Belgium, did his PhD
thesis on "Can Plantar Pressure Predict Foot Motion?" Friso's work in
this regard, where he used changes in plantar pressure measurement as a
method to predict rearfoot and forefoot rotational motions, seems like
it is headed in the direction that you may want to go. Good luck with
your research!

Hagman F: Can plantar pressure predict foot motion? CIP-Data Library
Technische Universiteit Eindhoven, 2005.

Cheers,

Kevin

************************************************** **************************

Kevin A. Kirby, DPM
Clinical Associate Professor
Department of Applied Biomechanics
California School of Podiatric Medicine at Samuel Merritt University

Private Practice:
107 Scripps Drive, Suite 200
Sacramento, CA 95825 USA

Voice: (916) 925-8111 Fax: (916) 925-8136

Reply 5

Hey Ruoli,

i am also a PhD candidate. I am working within the field of child and
adolescent rheumatism and I am interested in the deviation of the center of
pressure due to stability while walking. During static measurement the
center of pressure represents the center of mass quite well, but during
walking, i.e. dynamic measurement this assumption fits not very well.
I think I don’t understand your problem precisely but there are several
papers about the deviation of the center of mass, e.g. Newell, Gait &
Posture 1993; 4: 225-230 or Jamshidi Journal of Research in Medical
Sciences/ January & February 2010; Vol 15, No 1. Or Lee Arch Phys Med
Rehabil Vol 87, April 2006.

And the reason why I am writing you is that it would be wonderful when you
post or send me the answers you´ll get from the Biomch-List.

All the best,
Florian




Florian Kreuzpointner
MSc Applied Sport Science, PhD candidate

Department of Biomechanics in Sports
Faculty of Sports Science
Technische Universität München

phone munich: +49 / 89 / 289 24585
phone Garmisch: +49 / 8821 / 701 308
florian.kreuzpointner@sp.tum.de


Reply 6

Hello.

Nice to see someone else in Sweden using musculoskeletal models. We are
not that many as far as I know. I am sorry to say that I can't help you
directly with your problem, except that I do know were you could get an
experiment carried out.


/jokke (who is mostly into musculoskeletal skiing biomechanics)

---

Joakim Holmberg, PhD student

Mechanics, Linköping University