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Awhile back I wrote to Biomch-L for information about how to mount
carcasses in order to take measurements. Here is a summary of replies.
THE QUERY
I'm a graduate student conducting research on the biomechanics of
locomotion in several species of primates, including humans. I want to
take some measurements in three-dimensions on the locations of muscle
attachments of carcasses. I need to mount t he carcasses to prevent any
small movements during my measuring sessions. I'd like some advice and/or
experiences on how others have dealt with this problem. The part of the
carcass I want to hold is a pelvis, thigh, and upper 1/2 of leg. I am
working with primates ranging from 10 lbs. to 180 lbs. (I expect to build
2 or three different sized support devices). I'm using a magnetic field
device (Polhemus d igitizer) to measure, so I want to avoid metal parts on
my support device. Mounting the carcass horizontally, as if lying on its'
side, is the arrangement that will give me maximum accuracy of the
digitizer and easy access to the points to be measure d.
THE ANSWERS
>From Bing Yu, Ph.D.
Assistant Professor
Divisin of Physcial Therapy
The University of North Carolina at Chapel Hill
Bing=Yu%PT%MAH@css.unc.edu
You may want to look at the following references:
An, K.N., Ueba, Y., Chao, E.Y., Cooney, W.P., and Linscheid, R.L. Tendon
excursion and moment arm of index finger muscles. Journal of Biomechanics,
1983, 16(6): 419-425.
An, K.N., Takahashi, K., Harrigan, T.P., and Chao, E.Y. Determination of
muscle orientations and moment arms. Journal of Biomedical Engineering.
1984, 106(8): 280-282.
Veeger, H.E.J., Van Der Helm, F.C.T., Van Der Woude, L.H.V., Pronk, G.M.,
and Rozendal, R.H. Inertia and muscle contraction parameters for
musculoskeletal modeling of the shoulder mechanism. Journal of
Biomechanics, 1991, 24(7): 615-629.
Veeger, D.J., Yu, B., An, K.N., and Rozendal, R.H. (1996) Geometry
parameters for musculoskeletal modeling of the arm. Journal of
Biomechanics (accepted, I can give you a copy of this one).
>From Lynne E. Bilston, PhD
Department of Mechanical and Mechatronic Engineering Tel (02) 351-2344
Room 311, Building J07 Fax (02) 351-7060
University of Sydney, N.S.W., 2006 bilston@tiny.me.su.oz.au
AUSTRALIA http://www.me.su.oz.au/staff/bilston.html
My students use car body filler to mount bone specimens which have
some soft tissue still attached. It's cheap, so it might be worth a
try.
From: Patrick Stephens
I would offer two possible sugestions
1. If the measurement time is short you could freeze the specimen in a
rectangular block of ice and then mount the block on the measuring table
or..
2. If the measureing times are long then casting the specimen in a block
of clear polyester resin and doing the same.
Thanks to Bing Yu, Lynne Bilston, and Patric Stevens for their helpful
suggestions!
Best Wishes, John
()
/\
John Cantrell_/) .oooO Oooo.
/\ ( ) ( )
/ \ \ ( ) /
_\ _\ \_) (_/
Biological Anthropology and Anatomy
Duke University
PO Box 90383
Durham, NC 27708-0383
Phone: (919) 660-7396
FAX: (919) 660-7348
email: cjc248@acpub.duke.edu
carcasses in order to take measurements. Here is a summary of replies.
THE QUERY
I'm a graduate student conducting research on the biomechanics of
locomotion in several species of primates, including humans. I want to
take some measurements in three-dimensions on the locations of muscle
attachments of carcasses. I need to mount t he carcasses to prevent any
small movements during my measuring sessions. I'd like some advice and/or
experiences on how others have dealt with this problem. The part of the
carcass I want to hold is a pelvis, thigh, and upper 1/2 of leg. I am
working with primates ranging from 10 lbs. to 180 lbs. (I expect to build
2 or three different sized support devices). I'm using a magnetic field
device (Polhemus d igitizer) to measure, so I want to avoid metal parts on
my support device. Mounting the carcass horizontally, as if lying on its'
side, is the arrangement that will give me maximum accuracy of the
digitizer and easy access to the points to be measure d.
THE ANSWERS
>From Bing Yu, Ph.D.
Assistant Professor
Divisin of Physcial Therapy
The University of North Carolina at Chapel Hill
Bing=Yu%PT%MAH@css.unc.edu
You may want to look at the following references:
An, K.N., Ueba, Y., Chao, E.Y., Cooney, W.P., and Linscheid, R.L. Tendon
excursion and moment arm of index finger muscles. Journal of Biomechanics,
1983, 16(6): 419-425.
An, K.N., Takahashi, K., Harrigan, T.P., and Chao, E.Y. Determination of
muscle orientations and moment arms. Journal of Biomedical Engineering.
1984, 106(8): 280-282.
Veeger, H.E.J., Van Der Helm, F.C.T., Van Der Woude, L.H.V., Pronk, G.M.,
and Rozendal, R.H. Inertia and muscle contraction parameters for
musculoskeletal modeling of the shoulder mechanism. Journal of
Biomechanics, 1991, 24(7): 615-629.
Veeger, D.J., Yu, B., An, K.N., and Rozendal, R.H. (1996) Geometry
parameters for musculoskeletal modeling of the arm. Journal of
Biomechanics (accepted, I can give you a copy of this one).
>From Lynne E. Bilston, PhD
Department of Mechanical and Mechatronic Engineering Tel (02) 351-2344
Room 311, Building J07 Fax (02) 351-7060
University of Sydney, N.S.W., 2006 bilston@tiny.me.su.oz.au
AUSTRALIA http://www.me.su.oz.au/staff/bilston.html
My students use car body filler to mount bone specimens which have
some soft tissue still attached. It's cheap, so it might be worth a
try.
From: Patrick Stephens
I would offer two possible sugestions
1. If the measurement time is short you could freeze the specimen in a
rectangular block of ice and then mount the block on the measuring table
or..
2. If the measureing times are long then casting the specimen in a block
of clear polyester resin and doing the same.
Thanks to Bing Yu, Lynne Bilston, and Patric Stevens for their helpful
suggestions!
Best Wishes, John
()
/\
John Cantrell_/) .oooO Oooo.
/\ ( ) ( )
/ \ \ ( ) /
_\ _\ \_) (_/
Biological Anthropology and Anatomy
Duke University
PO Box 90383
Durham, NC 27708-0383
Phone: (919) 660-7396
FAX: (919) 660-7348
email: cjc248@acpub.duke.edu