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Keywords: stiffness
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Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. November 2022, 144(11): 114502.
Paper No: BIO-22-1058
Published Online: July 1, 2022
...Luke Nigro; Elisa S. Arch Natural ankle quasi-stiffness (NAS) is a mechanical property of the ankle joint during dynamic motion. NAS has been historically calculated as the average slope (linear regression) of the net ankle moment versus ankle angle during discrete phases of stance. However, recent...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. November 2022, 144(11): 114503.
Paper No: BIO-22-1061
Published Online: July 1, 2022
.../1.3212104 annulus fibrosus intervertebral disc biomechanics tensile properties stiffness Natural Sciences and Engineering Research Council of Canada 10.13039/501100000038 RGPIN-2020-04723 The number one cause of disability worldwide is low back pain [ 1 ], often the result...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. April 2022, 144(4): 044503.
Paper No: BIO-21-1188
Published Online: December 15, 2021
...@uscmed.sc.edu e-mail:  jay.humphrey@yale.edu 17 05 2021 14 10 2021 15 12 2021 hypertension Marfan syndrome extracellular matrix remodeling stiffness phenotype National Institutes of Health 10.13039/100000002 R01 HL145064 National Science Foundation 10.13039...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. February 2021, 143(2): 024501.
Paper No: BIO-20-1065
Published Online: October 8, 2020
... SPARC-null (n = 36) and WT (n = 18) mice aged 14–25 months were subjected to cyclic axial tension and compression to determine neutral zone (NZ) length and stiffness. Three separate mechanical tests were completed for each spine to determine the effect of the number of IVDs tested in series (one versus...
Journal Articles
Publisher: ASME
Article Type: Review Articles
J Biomech Eng. October 2020, 142(10): 100804.
Paper No: BIO-20-1105
Published Online: August 31, 2020
... pathological development in the cells; pathological or aging cells, on the other hand, can alter their micro-environment to become abnormal. In this minireview, we discuss four important biophysical cues of the micro-environment—stiffness, curvature, extracellular matrix (ECM) architecture and viscosity...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. August 2020, 142(8): 081008.
Paper No: BIO-19-1561
Published Online: June 17, 2020
...Alex M. Noonan; Derek P. Zwambag; Nicole Mazara; Erin Weersink; Geoffrey A. Power; Stephen H. M. Brown Studies on single muscle fiber passive material properties often report relatively large variation in elastic modulus (or normalized stiffness), and it is not clear where this variation arises...
Includes: Supplementary data
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. October 2013, 135(10): 101009.
Paper No: BIO-13-1027
Published Online: September 20, 2013
... and measurement methods, so it is not surprising that they produce different results. The mechanical properties of skin tissues are dependent on the loading direction [ 16 ]; the air-jet machine provides measurements of stiffness perpendicular to the surface of the skin within the physiologic limit, while...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. October 2013, 135(10): 101007.
Paper No: BIO-12-1575
Published Online: September 20, 2013
..., trabecular anisotropy on QCT-based FE predictions of vertebral stiffness and deformation patterns. Orthotropic material properties estimated from microcomputed tomography data (“specimen-specific anisotropy”), were assigned to a large, columnar region of the L1 centrum ( n  = 12), and generic-anisotropic...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. September 2012, 134(9): 094502.
Published Online: August 27, 2012
... bending from 50 N to 300 N at 1 Hz for 25 cycles. All femurs were tested in both anteroposterior (AP) and mediolateral (ML) bending planes. Bending stiffness (i.e., slope of the force-vs-displacement curve) and linearity R 2 (i.e., coefficient of determination) of each loading cycle were measured...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. September 2010, 132(9): 094502.
Published Online: August 26, 2010
... portion of the third cycle was used to measure the stiffness. Indentation tests were performed on two polyurethane foams and polymethyl-methacrylate for validation ( n = 15 ) . Regression analysis was used to compare the moduli with reference values. Subchondral bone moduli of tibial plateaus from Sprague...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. February 2009, 131(2): 021014.
Published Online: December 18, 2008
... and the force acting on the needles. This relationship allows the force on the microneedle to be determined from a known field gradient. This together with a measurement of the displacement of the needle in a given gel allows one to determine the stiffness ( F ∕ δ ) of the gel and the elastic modulus, provided...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021011.
Published Online: March 31, 2008
... of mixtures for fiber composites to evaluate the dependence of age-related changes in tendon tensile strength ( σ ) and stiffness ( E ) on the collagen fibril cross-sectional area fraction ( ρ ) , which is related to the fibril volume fraction. Tail tendons from C57BL6 mice from age groups 1.6 – 35.3 months...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021013.
Published Online: March 31, 2008
... brain stiffness Characterization of tissue material properties is important in a number of ways to medical clinicians and researchers. Changes in material stiffness can indicate the presence of tumors and other diseases ( 1 ). In the case of deep venous thrombosis (DVT), hardness...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. February 2008, 130(1): 011011.
Published Online: February 11, 2008
...-brittle transition stiffness strength In a failure scenario, bone will often have been exposed to high strain rates. From equine and canine studies using surgically implanted strain gauges, Rubin et al. ( 1 ) concluded that physiological strain rates during walking and running are in the range...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. February 2007, 129(1): 97–104.
Published Online: June 26, 2006
... biomembranes finite element analysis cataracts accommodation biomechanics stress stiffness Despite the widely recognized importance of the biomechanics of the lens capsule in normal processes such as accommodation and clinical interventions such as cataract surgery, there has been no prior...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. June 2001, 123(3): 234–238.
Published Online: December 13, 2000
...J. A. Simo˜es; J. Monteiro; M. A. Vaz The aim of this paper is to describe a new numerical–experimental method to determine the stiffness of a conceptual proximal femoral prototype. The methodology consists of the comparison of the numerical and experimental displacement distributions...