Investigators currently lack the data necessary to define the state of skeletal muscle properties within cadaveric specimens. The purpose of this study is to define the temporal changes in the postmortem properties of skeletal muscle as a function of mechanical loading and freezer storage. The tibialis anterior of the New Zealand white rabbit was chosen for study. Modulus and no-load strain were found to vary significantly from live after eight hours postmortem. Following the changes that occur during rigor mortis, a stable region of postmortem, post-rigor properties occurred between 36 to 72 hours postmortem. A freeze–thaw process was not found to have a significant effect on the post-rigor response. The first loading cycle response of post-rigor muscle was unrepeatable but stiffer than live passive muscle. After preconditioning, the post-rigor muscle response was repeatable. The preconditioned post-rigor response was less stiff than the live passive response due to a significant increase in no-load strain. Failure properties of postmortem muscle were found to be significantly different from live passive muscle with a significant decrease in failure stress (61 percent) and energy (81 percent), while failure strain was unchanged. These results suggest that the post-rigor response of cadaveric muscle is unaffected by freezing but sensitive to even a few cycles of mechanical loading. [S0148-0731(00)00301-0]

1.
Borchers
,
R. E.
,
Gibson
,
L. J.
,
Burchardt
,
H.
, and
Hayes
,
W. C.
,
1995
, “
Effects of selected thermal variables on the mechanical properties of trabecular bone
,”
Biomaterials
,
16
, No.
7
, pp.
545
551
.
2.
Goh
,
J. C.
,
Ang
,
E. J.
, and
Bose
,
K.
,
1989
, “
Effect of preservation medium on the mechanical properties of cat bones
,”
Acta Orthop. Scand.
,
60
, pp.
465
467
.
3.
Linde
,
F.
, and
Sorensen
,
H. C. F.
,
1993
, “
The effect of different storage methods on the mechanical properties of trabecular bone
,”
J. Biomech.
,
26
, No.
10
, pp.
1249
1252
.
4.
Pelker
,
R. R.
,
Friedlaender
,
G. E.
,
Markham
,
T. C.
,
Panjabi
,
M. M.
, and
Moen
,
C. J.
,
1984
, “
Effects of freezing and freeze-drying on the biomechanical properties of rat bone
,”
J. Orthop. Res.
,
1
, pp.
405
411
.
5.
Sedlin
,
E. D.
,
1965
, “
A rheologic model for cortical bone. A study of the physical properties of human femoral samples
,”
Acta Orthop. Scand.
,
36
(Suppl. 83), pp.
1
77
.
6.
Turner
,
W. D.
,
Vasseur
,
P.
,
Gorek
,
J. E.
,
Rodrigo
,
J. J.
, and
Wedell
,
J. R.
,
1988
, “
An in vitro study of the structural properties of deep-frozen versus freeze-dried, ethylene oxide-sterilized canine anterior cruciate ligament bone–ligament–bone preparations
,”
Clin. Orthop.
,
230
, pp.
251
256
.
7.
Woo
,
L.-Y.
,
Orlando
,
C. A.
,
Camp
,
J. F.
, and
Akeson
,
W. H.
,
1986
, “
Effects of postmortem storage by freezing on ligament tensile behavior
,”
J. Biomech.
,
19
, pp.
399
404
.
8.
Smith
,
C. W.
,
Young
,
I. S.
, and
Kearney
,
J. N.
,
1996
, “
Mechanical properties of tendons: changes with sterilization and preservation
,”
ASME J. Biomech. Eng.
,
118
, No.
1
, pp.
56
61
.
9.
Foutz
,
T. L.
,
Stone
,
E. A.
, and
Abrams
,
C. F.
, Jr.
,
1992
, “
Effects of freezing on mechanical properties of rat skin
,”
Am. J. Vet. Res.
,
53
, pp.
788
792
.
10.
Kiefer
,
G. N.
,
Sundby
,
K.
,
McAllister
,
D.
,
Shrive
,
N. G.
,
Frank
,
C. B.
,
Lam
,
T.
, and
Schachar
,
N. S.
,
1989
, “
The effect of cryopreservation on the biomechanical behavior of bovine articular cartilage
,”
J. Orthop. Res.
,
7
, pp.
494
501
.
11.
Callaghan
,
J. P.
, and
McGill
,
S. M.
,
1995
, “
Frozen storage increases the ultimate compressive load of porcine vertebrae
,”
J. Orthop. Res.
,
13
, pp.
809
812
.
12.
McElhaney, J. H., Paver, J. G., McCrackin, H. J., and Maxwell, G. M., 1983, “Cervical spine compression responses,” SAE Paper No. 831615.
13.
Panjabi
,
M. M.
,
Krag
,
M.
,
Summers
,
D.
, and
Videman
,
T.
,
1985
, “
Biomechanical time tolerance of fresh cadaveric human spine specimens
,”
J. Orthop. Res.
,
3
, pp.
292
300
.
14.
Smeathers
,
J. E.
, and
Joanes
,
D. N.
,
1988
, “
Dynamic compressive properties of human lumbar intervertebral joints: a comparison between fresh and thawed specimens
,”
J. Biomech.
,
21
, pp.
425
433
.
15.
Mertz, H. J., and Patrick, L. M., 1967, “Investigation of the Kinematics and Kinetics of Whiplash,” SAE Paper No. 670919.
16.
Mertz, H. J., and Patrick, L. M., 1971, “Strength and Response of the Human Neck,” SAE Paper No. 710855.
17.
Bendjellal, F., Terriere, C., Gillet, D., Mack, P., and Guillon, F., 1987, “Head and Neck Responses Under High G-level Lateral Deceleration. Biomechanics of Impact Injury and Injury Tolerances of the Head–Neck Complex,” SAE Paper No. 872196.
18.
Wismans, J., Phiippens, M., van Oorswchot, E., Kalliers, D., and Mattern, R., 1987, “Comparison of Human Volunteer and Cadaver Head–Neck Response in Frontal Flexion,” SAE Paper No. 872194.
19.
Mayer, R. G., and Bigelow, G. S., 1990, Em`balming: History, Theory, and Practice, Appleton and Lange, East Norwalk, CT.
20.
Fitzgerald
,
E. R.
,
1975
, “
Dynamic mechanical measurements during the life to death transition in animal tissues
,”
Biorheology
,
12
, No.
6
, pp.
397
408
.
21.
Gottsauner-Wolf
,
F.
,
Grabowski
,
J. J.
,
Chao
,
E. Y. S.
, and
An
,
K. N.
,
1995
, “
Effects of freeze/thaw conditioning on the tensile properties and failure mode of bone-muscle-bone units: a biomechanical and histological study in dogs
,”
J. Orthop. Res.
,
13
, No.
1
, pp.
90
95
.
22.
Leitschuh
,
P. H.
,
Doherty
,
T. J.
,
Taylor
,
D. C.
,
Brooks
,
D. E.
, and
Ryan
,
J. B.
,
1996
, “
Effects of postmortem freezing on the tensile properties of the rabbit extensor digitorum longus muscle tendon complex
,”
J. Orthop. Res.
,
14
, pp.
830
833
.
23.
Goll, D. E., Taylor, R. G., Christiansen, J. A., and Thompson, V. F., 1992, “Role of proteinases and protein turnover in muscle growth and meat quality,” Proc. 44th Annu. Recip. Meat Conf., National Livestock and Meat Board, Chicago, IL, pp. 25–36.
24.
Myers
,
B. S.
,
McElhaney
,
J. H.
, and
Doherty
,
B. J.
,
1991
, “
The Viscoelastic Responses of the Human Cervical Spine in Torsion: Experimental Limitations of Quasi-linear Theory, and a Method for Reducing These Effects
,”
J. Biomech.
,
24
, No.
9
, pp.
811
817
.
25.
Myers, B. S., McElhaney, J. H., Richardson, W. J., Nightingale, R. W., and Doherty, B. J., 1991, “The Influence of End Condition on Human Cervical Spine Injury Mechanisms,” SAE Paper No. 912915.
26.
Panjabi
,
M. M.
,
White
,
A. A.
, and
Johnson
,
R. M.
,
1975
, “
Cervical Spine Mechanics as a Function of Transection of Components
,”
J. Biomech.
,
8
, pp.
327
336
.
27.
Yoganandan
,
N.
,
Sances
,
A.
,
Pintar
,
F.
,
Maiman
,
D. J.
,
Reinartz
,
J.
,
Cusick
,
J. F.
, and
Larson
,
S. J.
,
1990
, “
Injury Biomechanics of the Human Cervical Column
,”
Spine
,
15
, p.
10
10
.
28.
Nightingale
,
R. W.
,
McElhaney
,
J. H.
,
Richardson
,
W. J.
,
Best
,
T. M.
, and
Myers
,
B. S.
,
1996
, “
Experimental Impact Injury to the Cervical Spine: Relating Motion of the Head and the Mechanism of Injury
,”
J. Bone Joint Surg. Am.
,
78-A
, No.
3
, pp.
312
321
.
29.
Garrett
,
W. E.
, Jr.
,
Safran
,
M. R.
,
Seaber
,
A. V.
,
Glisson
,
R. R.
, and
Ribbeck
,
B. M.
,
1988
, “
Biomechanical comparison of stimulated and non-stimulated skeletal muscle pulled to failure
,”
Am. J. Sports Med.
,
15
, No.
5
, pp.
448
454
.
30.
Myers, B. S., Van Ee, C. A., Camacho, D. L. A., Woolley, C. T., and Best, T. M., 1995, “On the structural and material properties of mammalian skeletal muscle and its relevance to human cervical impact dynamics,” Proc. 39th Annual Stapp Car Crash Conf., pp. 203–214.
31.
Lieber
,
R. L.
, and
Blevins
,
F. T.
,
1989
, “
Skeletal muscle architecture of the rabbit hindlimb: functional implications of muscle design
,”
J. Morphol.
,
199
, pp.
93
101
.
32.
Best, T. M., 1993, “A Biomechanical Study of Skeletal Muscle Strain Injuries,” Ph.D. Thesis, Duke University, Durham, NC.
33.
Dimery
,
N. J.
,
1985
, “
Muscle and Sarcomere lengths in the hind limb of the rabbit (Oryctolagus cuniculus) during a galloping stride
,”
J. Zool. Lond.
,
205
, pp.
373
383
.
34.
Fox, S. I., 1993, Human Physiology, Wm. C. Brown Publishers, Dubuque, IA.
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