Velocity profiles in annular perfusion chamber measured by laser-Doppler velocimetry.

abstract：:In finite element (FE) models knee ligaments can represented either by a group of one-dimensional springs, or by three-dimensional continuum elements based on segmentations. Continuum models closer approximate the anatomy, and facilitate ligament wrapping, while spring models are computationally less expensive. The me...

journal_title：Journal of biomechanics

authors： Naghibi Beidokhti H,Janssen D,van de Groes S,Hazrati J,Van den Boogaard T,Verdonschot N

更新日期：2017-12-08 00:00:00

abstract：:Muscle force is modulated by varying the number of active motor units and their firing rates. For the past five decades, the notion that the magnitude of the firing rates is directly related to motor unit size and recruitment threshold has been widely accepted. This construct, here named the After-hyperpolarization sc...

journal_title：Journal of biomechanics

authors： De Luca CJ,Contessa P

更新日期：2015-01-21 00:00:00

abstract：:The critical role that mechanical stimuli serve in mediating bone repair is recognized but incompletely understood. Further, previous attempts to understand this role have utilized application of externally applied mechanical loads to study the tissue's response. In this project, we have therefore endeavored to capita...

journal_title：Journal of biomechanics

authors： Prasad J,Wiater BP,Nork SE,Bain SD,Gross TS

更新日期：2010-10-19 00:00:00

abstract：:The negative charges on proteoglycans significantly affect the mechanical behaviors of articular cartilage. Mixture theories, such as the triphasic theory, can describe quantitatively how this charged nature contributes to the mechano-electrochemical behaviors of such tissue. However, the mathematical complexity of th...

journal_title：Journal of biomechanics

authors： Lu XL,Wan LQ,Guo XE,Mow VC

更新日期：2010-03-03 00:00:00

abstract：:The maintenance of steady contractions is required in many daily tasks. However, there is little understanding of how various lower limb configurations influence the ability to maintain force. The purpose of the current investigation was to examine the influence of joint angle on various lower-limb constant force cont...

journal_title：Journal of biomechanics

authors： Ofori E,Shim J,Sosnoff JJ

更新日期：2018-04-11 00:00:00

abstract：:This paper considers a finite element method to characterize blood flow in the human arm arteries. A set of different pressure waveforms, which represent normal and diseased heart pulses, is used for the proximal boundary conditions, and a modified Windkessel model is used for the distal arterial boundary conditions. ...

journal_title：Journal of biomechanics

authors： Balar SD,Rogge TR,Young DF

更新日期：1989-01-01 00:00:00

abstract：:Microdamage occurs in trabecular bone under normal loading, which impairs the mechanical properties. Architectural degradation associated with osteoporosis increases damage susceptibility, resulting in a cumulative negative effect on the mechanical properties. Treatments for osteoporosis could be targeted toward incre...

journal_title：Journal of biomechanics

authors： Garrison JG,Gargac JA,Niebur GL

更新日期：2011-11-10 00:00:00

abstract：:A fundamental understanding of the mechanical properties of the extracellular matrix (ECM) is critically important to quantify the amount of macroscopic stress and/or strain transmitted to the cellular level of vascular tissue. Structural constitutive models integrate histological and mechanical information, and hence...

journal_title：Journal of biomechanics

authors： Martufi G,Gasser TC

更新日期：2011-09-23 00:00:00

abstract：:The non-disabled human ankle joint was examined during walking in an attempt to determine overall system characteristics for use in the design of ankle prostheses. The hypothesis of the study was that the quasi-stiffness of the ankle changes when walking at different walking speeds. The hypothesis was examined using s...

journal_title：Journal of biomechanics

authors： Hansen AH,Childress DS,Miff SC,Gard SA,Mesplay KP

更新日期：2004-10-01 00:00:00

abstract：:Muscle compression commonly occurs in daily life (for instance wearing backpacks or compression garments, and during sitting). However, the effects of the compression on contraction dynamics in humans are not well examined. The aim of the study was to quantify the alterations of contraction dynamics and muscle archite...

journal_title：Journal of biomechanics

authors： Stutzig N,Ryan D,Wakeling JM,Siebert T

更新日期：2019-03-06 00:00:00

abstract：:In order to assess the potential influence of various physical or chemical treatments on bone grafts, and in particular, on femoral heads to be used as bone grafts, the mechanical symmetry of the femoral head was investigated. Pairs of proximal human femora were harvested and transversally sliced using a coordinate sy...

journal_title：Journal of biomechanics

authors： Banse X,Delloye C,Cornu O,Bourgois R

更新日期：1996-10-01 00:00:00

abstract：:The Terry Fox jogging (TFJ) prosthesis was developed at Chedoke-McMaster Hospital to alleviate the asymmetric jogging pattern experienced by above-knee amputees when attempting to jog with conventional walking prostheses. This prosthesis features a spring-loaded, telescoping shank designed to eliminate any vaulting ac...

journal_title：Journal of biomechanics

authors： DiAngelo DJ,Winter DA,Ghista DN,Newcombe WR

更新日期：1989-01-01 00:00:00

abstract：:Development of biologically inspired exoskeletons to assist soldiers in carrying load is a rapidly expanding field. Understanding how the body modulates stiffness in response to changing loads may inform the development of these exoskeletons and is the purpose of the present study. Seventeen subjects walked on a tread...

journal_title：Journal of biomechanics

authors： Caron RR,Lewis CL,Saltzman E,Wagenaar RC,Holt KG

更新日期：2015-04-13 00:00:00

abstract：:To investigate the roles of lithotripter shock wave (LSW) parameters and cavitation in stone comminution, a series of in vitro fragmentation experiments have been conducted in water and 1,3-butanediol (a cavitation-suppressive fluid) at a variety of acoustic field positions of an electromagnetic shock wave lithotripte...

journal_title：Journal of biomechanics

authors： Smith N,Zhong P

更新日期：2012-10-11 00:00:00

abstract：:Total disc arthroplasty (TDA) can be used to replace a degenerated intervertebral disc in the spine. There are different designs of prosthetic discs, but one of the most common is a ball-and-socket combination. Contact between the bearing surfaces can result in high frictional torque, which can then result in wear and...

journal_title：Journal of biomechanics

authors： Moghadas P,Mahomed A,Hukins DW,Shepherd DE

更新日期：2012-02-02 00:00:00

abstract：:Exercise is one of the few effective treatments for LBP. Although exercise is often based on the premise of reduced spinal stiffness, trunk muscle adaptation may increase stiffness. This study developed and validated a method to assess trunk stiffness and damping, and tested these parameters in 14 people with recurrin...

journal_title：Journal of biomechanics

authors： Hodges P,van den Hoorn W,Dawson A,Cholewicki J

更新日期：2009-01-05 00:00:00

abstract：:Limb asymmetry is a known factor for increased ACL injury risk. These asymmetries are normally observed during in vivo testing. Prior studies have developed in vitro testing methodologies driven by in vivo kinematics to investigate knee mechanics relative to ACL injury. The objective of this study was to determine if ...

journal_title：Journal of biomechanics

authors： Bates NA,McPherson AL,Nesbitt RJ,Shearn JT,Myer GD,Hewett TE

更新日期：2017-02-28 00:00:00

abstract：:Non-invasive estimation of arterial blood volume flow (BVF) has become a central issue in assessment of cardiovascular risk. Poiseuille and Womersley approaches are commonly used to assess the BVF from centerline velocity, but both methods neglect the influence of curvature. Based on the assumption that the velocity i...

journal_title：Journal of biomechanics

authors： Leguy CA,Bosboom EM,Hoeks AP,van de Vosse FN

更新日期：2009-08-07 00:00:00

abstract：:A design is presented for a bicycle pedal dynamometer that measures both normal and tangential forces (i.e. driving forces). Mechanical decoupling is used to reduce the cross-sensitivity of the dynamometer to loads doing no work to propel the bicycle. This obviates the need to measure all six loads for accurate data r...

journal_title：Journal of biomechanics

authors： Newmiller J,Hull ML,Zajac FE

更新日期：1988-01-01 00:00:00

abstract：:Developing effective therapeutics for osteoarthritis (OA) necessitates that such molecules can reach and target chondrocytes within articular cartilage. However, predicting how well very large therapeutic molecules diffuse through cartilage is often difficult, and the relationship between local transport mechanics for...

journal_title：Journal of biomechanics

authors： DiDomenico CD,Kaghazchi A,Bonassar LJ

更新日期：2019-01-03 00:00:00

abstract：:The study verifies the development of active axial stress in the wall of mouse aorta over a range of physiological loads when the smooth muscle cells are stimulated to contract. The results obtained show that the active axial stress is virtually independent of the magnitude of pressure, but depends predominately on th...

journal_title：Journal of biomechanics

authors： Agianniotis A,Rachev A,Stergiopulos N

更新日期：2012-07-26 00:00:00

abstract：:This paper describes the process used to generate lower limb kinematics during single limb stance phase of gait, using musculoskeletal modelling, muscle driven forward simulation and gradient based optimisation techniques (including design of experiment techniques). Initial inputs to the forward simulation process wer...

journal_title：Journal of biomechanics

authors： Jonkers I,Spaepen A,Papaioannou G,Stewart C

更新日期：2002-05-01 00:00:00

abstract：:Hamstring muscle strain injury is one of the most common injuries in sports involving sprinting and kicking. Studies examining hamstring kinematics and activations are rich for sprinting but lacking for kicking. The purpose of this study was to examine kinematics and activations of hamstring muscles in instep and cut-...

journal_title：Journal of biomechanics

authors： Zhang L,Li H,Garrett WE,Liu H,Yu B

更新日期：2020-01-23 00:00:00

abstract：:Recent studies raised increasing concern about the reliability of computer models in reproducing in vivo hemodynamics in cerebral aneurysms. Boundary condition problem is among the most frequently addressed issues since three-dimensional (3-D) modeling is usually restricted to local arterial segments. The present stud...

journal_title：Journal of biomechanics

authors： Liang F,Liu X,Yamaguchi R,Liu H

更新日期：2016-11-07 00:00:00

abstract：:Groups of rats were killed at 2, 6, 12, and 24 months of age. From dissected left and right mandibles in each rat, three pairs of transverse sections were cut at the incisal, middle, and basal regions of the incisor. One section in each pair was loaded until failure and a stress-strain curve for the periodontal ligame...

journal_title：Journal of biomechanics

authors： Komatsu K,Shibata T,Shimada A,Viidik A,Chiba M

更新日期：2004-07-01 00:00:00

abstract：:The nonlinear stress-strain characteristics of the human menisci were determined by uniaxial elongation tests performed on circumferential and radial specimens prepared from different regions, layers, and locations. The properties of the collagen fibers and the matrix were calculated using the test results along with ...

journal_title：Journal of biomechanics

authors： Tissakht M,Ahmed AM

更新日期：1995-04-01 00:00:00

abstract：:To test the hypothesis that stress deprivation induces over-expression of cytokines in the patellar tendon, 40 rats were divided into the following two groups. In the stress-shielded group, we slackened the patellar tendon in the right knee by drawing the patella toward the tibial tubercle with flexible wires. In the ...

journal_title：Journal of biomechanics

authors： Uchida H,Tohyama H,Nagashima K,Ohba Y,Matsumoto H,Toyama Y,Yasuda K

更新日期：2005-04-01 00:00:00

abstract：:Stem-cement and cement-bone interfacial failures as well as cement fractures have been noted in cemented total hip arthroplasty (THA) as the cause of aseptic loosening. Attempts to reduce the risk of femoral component loosening include improving the stem-cement interface by various coatings, using a textured or porous...

journal_title：Journal of biomechanics

authors： Norman TL,Shultz T,Noble G,Gruen TA,Blaha JD

更新日期：2013-03-15 00:00:00

abstract：:We propose a numerical model of hemodynamics arising from malaria infection. This model is based on a particle method, where all the components of blood are represented by the finite number of particles. A two-dimensional spring network of membrane particles is employed for expressing the deformation of malaria infect...

journal_title：Journal of biomechanics

authors： Imai Y,Kondo H,Ishikawa T,Teck Lim C,Yamaguchi T

更新日期：2010-05-07 00:00:00

abstract：:The purpose of this study was to investigate the mechanical consequences of proteoglycan 4 (Prg4) deficiency on intervertebral disc mechanics using a Prg4 knockout mouse model. Prg4, also called lubricin, was first identified as the boundary lubricant in synovial fluid but has subsequently been localized within a numb...

journal_title：Journal of biomechanics

authors： Teeple E,Aslani K,Shalvoy MR,Medrano JE,Zhang L,Machan JT,Fleming BC,Jay GD

更新日期：2015-07-16 00:00:00