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Cheng Cao
04-24-1996, 04:30 AM
Hi, all:

I posted a info request on "foot strike". Here is the summary. Thanks.

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C. Cao, Department of Mechanical Engineering and Applied Mechanics,
University of Michigan, Ann Arbor -*-
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From: cheng cao
Subject: foot strike
To: Multiple recipients of list BIOMCH-L
Status: RO

Hi, all:

Currently, I am studying the effects of foot strike on the whole body energy
absorption during walking. The amount was found from dynamic modeling.
To verify our model results, experimental findings would be appreciated.
Does anyone know any related experiments and/or model results? A summary on
the topic will be posted.

Thanks in advance.
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To: cheng cao
From: j-patton@nwu.edu (Jim Patton)
Subject: Re: foot strike/energy absorbtion
Status: RO

Hi Cheng,
So nice to hear what you are doing! This sounds a lot like what I had
horrible problems with in my masters thesis! In fact, for a long time I
thought wanted to look at a more simplified motor control problem: landing.
This may be an area you want to check out.

Here's some refs you might think are informative:

Dyhre-Poulsen, P., E. Simonsen, M. Voight (1991) Dynamic control of muscle
stiffness and H reflex modulation during hopping and jumping in man.
Journal of Physiology. 437:287-304.
Gerritsen, K. G. M., A. J. van den Bogert, B. M. Nigg (1995) Direct
dynamics simulation of the impact phase in heel-toe running. Journal of
Biomechanics. 28:661-668.
Gross, T. S., R. C Nelson (1988) The shock attenuation role of the ankle
during landing from a vertical jump. Medicine and Science in Sports and
Exercise. 20:506-514.
Lacquaniti, F., C. Maioli (1987) Anticipatory and reflex coactivation of
antagonist muscle in catching. Brain Research. 406:373-378.
Lacquaniti, F., N. A. Borghese, M Carrozzo (1992) Internal models of limb
geometry in the control of hand compliance. Journal of Neuroscience.
12:1750-1762.
McMahon, T. A., P. R. Greene (1979) The influence of track compliance on
running. Journal of Biomechanics. 12:893-904.
Meglan, D. A. (1992) Enhanced Analysis of Human Locomotion. Ph.D.
Dissertation, Ohio State University. :.
Meglan, D. A., N. Berme (1991) A 3D Passive Mechanical Model of the Human
Foot for Use in Locomotion Synthesis, Second North American Congress of
Biomechanics, Chicago, .
Robbins, S., G. GJ.G. Gouw, J.M. McClaran, E. Waked (1993) Protective
sensation fo the plantar aspect of the foot. Foot & Ankle. 14:347-352.
Salathe, E. P. Jr., G.A. Arangio, E.P. Salathe (1990) The foot as a shock
absorber. Journal of Biomechanics. 23:655-659.
Valiant, G.A. (ed.) (1990) Transmission and Attenuation of Heelstrike
Accelerations, Human Kinetics Books, Champaign, IL..
Wicke, R. W., C.M. Oman (1982) Visual and graviceptive influences on lower
leg EMG activity in humans during brief falls. Experimental Brain Research.
46:324-330.

Also, check out the articles in BIOMECHANICS X-B (Jonsson, B ed., Human
Kinetics Publishers.)

Hope this helps!

JIM


At 01:36 PM 4/9/96 -0400, cheng cao wrote:
>Hi, all:
>
>Currently, I am studying the effects of foot strike on the whole body energy
>absorption during walking. The amount was found from dynamic modeling.
>To verify our model results, experimental findings would be appreciated.
>Does anyone know any related experiments and/or model results? A summary on
>the topic will be posted.
>
>Thanks in advance.
>
>
>C. Cao
>Graduate Student
>Department of Mechanical Engineering and Applied Mechanics
>The University of Michigan, Ann Arbor
>
>
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Doctoral Candidate, 645 N Michigan Ave|\:\ \/:/\:\_\:/ /\::/ / |
Biomedical Engineering Suite 1100 | \:\/:/ /\/_// / \/_/ |
Northwestern U. Chicago, IL 60611 | \::/ / \/_/ |
EMAIL: j-patton@nwu.edu (312)908-6785LAB | \/_/ |
http://sulu.smpp.nwu.edu/~jim -0741FAX +------------------------+ (_)
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To: cheng cao , chengcao@engin.umich.EDU
Reply-to: a.l.hof@med.RUG.NL
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Status: RO

A possibly relevant paper, that you might easily miss is:
- Webb, P.,Saris, WHM, Schoffelen, PFM and Van Ingen Schenau, GJ. The
work of walking: a calorimetric study. Med. Sci. Sports Exercise 20:
331 - 337 (1988).
They give an estimate of the -possible- power loss due to deformation
of the shoe. Much more I have never found. Have you consulted the
diskette GAITBIB of Vaughan et al. ?
Good luck, At HofAt Hof
Department of Medical Physiology
University of Groningen
Bloemsingel 10
NL-9712 KZ GRONINGEN
The Netherlands
Phone: (31) 50 3632645
Fax: (31) 50 3632751

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Received: from MAILQUEUE by FS3 (Mercury 1.21); 10 Apr 96 09:56:15 +1100
From: "Shane Preston"
To: chengcao@engin.umich.edu
Date: Wed, 10 Apr 1996 09:56:11 GMT+1000
Subject: Re: foot strike
Priority: normal
X-Mailer: Pegasus Mail for Windows (v2.23)
Message-Id:
Status: RO

Dear Cheng Cao,

I saw your posting on Biomch-l, (9th April). Although I cannot help
you regarding experimental data, I too am doing some dynamic
modelling, mainly in take-off, (jumping, diving). Thus, I was
wondering if it would be possible to establish some dialogue
regarding the techniques you are using etc.

I am utilising Kane's Equations of motion and then using inverse
dynamics to determine the parameters of the system. I have written
my own procedures using MAPLE.

What techniques are you using? What software are you using? What
problems/benefits/etc have you found?

I have carried out my own experiments for my modelling and am also
currently trying to validate my model.

Look forward to hearing from you,

Shane Preston


Shane Preston
School of Engineering
University of Ballarat

Telephone : 61 053 279111
Fax : 61 053 279137
Email : spreston@ballarat.edu.au
Mail : PO Box 663 Ballarat Vic. 3353.

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