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John Rasmussen
04-27-2003, 07:17 AM
Dear Hampus,

I do not have any measured data, but if you are looking for ballpark
values, you might consider applying musculoskeletal simulation. There is
a pretty good lower extremity model available for the AnyBody Modeling
System, and it would not be difficult to let the system compute
approximate values for max joint moments in various postures.

There is a whole lot of mathematics behind this, but I am afraid I would
be stretching the patience of many readers if I were to explain the
details here. Feel free to contact me directly if you need more
information.

A beta version of The AnyBody Modeling System is available for free at
www.anybodytech.com, and the lower extremity model is available in the
repository of the homepage of the AnyBody Research Project,
http://anybody.auc.dk/Software/Repository/repository.htm

The model is in the public domain.

John

_________________
John Rasmussen, Assoc. Prof., Ph.D., jr@ime.auc.dk,
http://www.ime.auc.dk/~jr
The AnyBody Project, http://anybody.auc.dk
Institute of Mechanical Engineering, Aalborg University,
Pontoppidanstraede 101, DK-9220 Aalborg East, Denmark

-----Original Message-----
From: Biomechanics and Movement Science listserver
[mailto:BIOMCH-L@NIC.SURFNET.NL] On Behalf Of Olsson, Hampus (H.)
Sent: 24. april 2003 08:23
To: BIOMCH-L@NIC.SURFNET.NL
Subject: [BIOMCH-L] Active Joint Moments

Dear Biomch-L Colleagues
Does anyone have any information/data on the maximum moment that can be
applied to joints of the lower limbs due to active muscle contraction?
The active moments supplied by the muscles as an overall contribution to
the joint i.e. all of the knee extensors acting to produce one moment. I
realise this will vary between subjects due to muscle strength but any
value would be a good starting point.
I am looking for maximum moments for the hip in abduction / adduction,
flexion / extension and internal / external rotation, the knee in
flexion / extension as well as the ankle in dorsiflexion /
plantarflexion, inversion / eversion and internal / external rotation.
Results from strength tests on volunteer subjects and not pretensioning
of cadaveric.
Your help would be greatly appreciated.
Thank You!
All the best
Hampus Olsson

_________________________________________________
Hampus Olsson B.Sc.

Volvo Car Corporation
Reasearch & Development
Volvo Cars Safety Centre
Dept 91410,PV 22
SE-405 31 Göteborg, Sweden
Telephone: +46 31 3253525
E-mail: holsso21@volvocars.com

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