当前位置： SCI文献检索 > JOURNAL OF BIOMECHANICS期刊下所有文献 > Shear and pressure under the first ray in neuropathic diabetic patients: Implications for support of the longitudinal arch.

Shear and pressure under the first ray in neuropathic diabetic patients: Implications for support of the longitudinal arch.

Abstract：

OBJECTIVE:To assess dynamic arch support in diabetic patients at risk for Charcot neuroarthopathy whose arch index has not yet shown overt signs of foot collapse. METHODS:Two indirect measures of toe flexor activation (ratios: peak hallux pressure to peak metatarsal pressure - Ph/Pm; peak posterior hallux shear to peak posterior metatarsal shear - Sh/Sm) were obtained with a custom built system for measuring shear and pressure on the plantar surface of the foot during gait. In addition, the tendency of the longitudinal arch to flatten was measured by quantifying the difference in shear between the 1st metatarsal head and the heel (Sflatten) during the first half of the stance phase. Four stance phases from the same foot for 29 participants (16 control and 13 neuropathic diabetic) were assessed. RESULTS:The peak load ratio under the hallux (Ph/Pm) was significantly higher in the control group (2.10±1.08 versus 1.13±0.74, p=0.033). Similarly, Sh/Sm was significantly higher in the control group (1.87±0.88 versus 0.88±0.45, p=0.004). The difference in anterior shear under the first metatarsal head and posterior shear under the lateral heel (Sflatten) was significantly higher in the diabetic group (p<0.01). Together these findings demonstrate reduced plantar flexor activity in the musculature responsible for maintaining the longitudinal arch. CONCLUSIONS:With no significant difference in arch index between the two groups, but significant differences in Ph/Pm, Sh/Sm and Sflatten the collective results suggest there are changes in muscle activity that precede arch collapse.

journal_name

J Biomech

journal_title

Journal of biomechanics

authors

Davis B,Crow M,Berki V,Ciltea D

doi

10.1016/j.jbiomech.2016.12.024

subject

Has Abstract

pub_date

2017-02-08 00:00:00

pages

176-178

eissn

0021-9290

issn

1873-2380

pii

S0021-9290(16)31317-3

journal_volume

52

pub_type

杂志文章

相关文献

JOURNAL OF BIOMECHANICS文献大全
  • A method to estimate the elastic properties of the extracellular matrix of articular cartilage.

    abstract：:In this work we propose a method to estimate the elastic properties of the extracellular matrix of articular cartilage, once the elastic properties of the chondrocytes and the whole tissue are known. The influence of the elastic properties of the tissue and the cell concentration on the estimated elastic properties of...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/s0021-9290(03)00280-x

    authors： Federico S,Herzog W,Wu JZ,La Rosa G

    更新日期：2004-03-01 00:00:00

  • Failure mechanism of the all-polyethylene glenoid implant.

    abstract：:Fixation failure of glenoid components is the main cause of unsuccessful total shoulder arthroplasties. The characteristics of these failures are still not well understood, hence, attempts at improving the implant fixation are somewhat blind and the failure rate remains high. This lack of understanding is largely due ...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2009.10.019

    authors： Sarah J,Sanjay G,Sanjay S,Carolyn A,Emery R,Andrew A,Ulrich H

    更新日期：2010-03-03 00:00:00

  • Compact bone: numerical simulation of mechanical characteristics.

    abstract：:One of the main difficulties encountered in the numerical simulation of the anisotropic elastic characteristics of compact bone is to account for the Haversian microstructure when determining the overall macroscopic behavior. Engineering analyses of such problems are usually based on 'homogenized approximations'. Comp...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/0021-9290(93)90031-9

    authors： Crolet JM,Aoubiza B,Meunier A

    更新日期：1993-06-01 00:00:00

  • Changes in stationary upright standing and proprioceptive reflex control of foot muscles after fatiguing static foot inversion.

    abstract：:We searched for the consequences of a maximal static foot inversion sustained until exhaustion on the post-exercise stationary upright standing and the proprioceptive control of the foot muscles. Twelve healthy subjects executed an unilateral maximal static foot inversion during which continuous power spectrum analyse...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2013.04.005

    authors： Vie B,Gomez N,Brerro-Saby C,Weber JP,Jammes Y

    更新日期：2013-06-21 00:00:00

  • Changes in fascicle length from rest to maximal voluntary contraction affect the assessment of voluntary activation.

    abstract：:The purpose of this study was to investigate the effect of the differences between the actual fascicle length during a voluntary contraction and the fascicle length at rest of the triceps surae muscle on the determination of the voluntary activation (VA) by using the interpolated twitch technique. Twelve participants ...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2007.04.011

    authors： Arampatzis A,Mademli L,De Monte G,Walsh M

    更新日期：2007-01-01 00:00:00

  • Mechanical behavior of coronary stents investigated through the finite element method.

    abstract：:Intravascular stents are small tube-like structures expanded into stenotic arteries to restore blood flow perfusion to the downstream tissues. The stent is mounted on a balloon catheter and delivered to the site of blockage. When the balloon is inflated, the stent expands and is pressed against the inner wall of the c...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/s0021-9290(02)00033-7

    authors： Migliavacca F,Petrini L,Colombo M,Auricchio F,Pietrabissa R

    更新日期：2002-06-01 00:00:00

  • Revolutionizing orthopaedic biomaterials: The potential of biodegradable and bioresorbable magnesium-based materials for functional tissue engineering.

    abstract：:In recent years, there has been a surge of interest in magnesium (Mg) and its alloys as biomaterials for orthopaedic applications, as they possess desirable mechanical properties, good biocompatibility, and biodegradability. Also shown to be osteoinductive, Mg-based materials could be particularly advantageous in func...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章,评审

    doi：10.1016/j.jbiomech.2013.12.003

    authors： Farraro KF,Kim KE,Woo SL,Flowers JR,McCullough MB

    更新日期：2014-06-27 00:00:00

  • Biomechanical evaluation of walking and cycling in children.

    abstract：:Physical activity in children is important as it leads to healthy growth due to physiological benefits. However, a physiological benefit can be partially negated by excessive or unphysiological loads within the joints. To gain an initial understanding into this, the present study sought to compare joint loading betwee...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2019.01.051

    authors： Greca JPA,Ryan J,Baltzopoulos V,Korff T

    更新日期：2019-04-18 00:00:00

  • A potential role of smooth muscle tone in early hypertension: a theoretical study.

    abstract：:A conspicuous long-term consequence of hypertension is a thickening of the arterial wall, which many suggest returns the circumferential wall stress toward its normal value. This thickening results from an increase in smooth muscle and extracellular matrix, with the associated growth and remodeling processes depending...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/s0021-9290(03)00178-7

    authors： Humphrey JD,Wilson E

    更新日期：2003-11-01 00:00:00

  • Endothelial actin and cell stiffness is modulated by substrate stiffness in 2D and 3D.

    abstract：:There is a growing appreciation of the profound effects that passive mechanical properties, especially the stiffness of the local environment, can have on cellular functions. Many experiments are conducted in a 2D geometry (i.e., cells grown on top of substrates of varying stiffness), which is a simplification of the ...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2009.02.012

    authors： Byfield FJ,Reen RK,Shentu TP,Levitan I,Gooch KJ

    更新日期：2009-05-29 00:00:00

  • Mechanical and material properties of the plantarflexor muscles and Achilles tendon in children with spastic cerebral palsy and typically developing children.

    abstract：BACKGROUND:Children with spastic cerebral palsy (CP) experience secondary musculoskeletal adaptations, affecting the mechanical and material properties of muscles and tendons. CP-related changes in the spastic muscle are well documented whilst less is known about the tendon. From a clinical perspective, it is important...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2016.07.020

    authors： Theis N,Mohagheghi AA,Korff T

    更新日期：2016-09-06 00:00:00

  • Probabilistic finite element prediction of knee wear simulator mechanics.

    abstract：:Computational models have recently been developed to replicate experimental conditions present in the Stanmore knee wear simulator. These finite element (FE) models, which provide a virtual platform to evaluate total knee replacement (TKR) mechanics, were validated through comparisons with experimental data for a spec...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2005.07.029

    authors： Laz PJ,Pal S,Halloran JP,Petrella AJ,Rullkoetter PJ

    更新日期：2006-01-01 00:00:00

  • Computational reverse shoulder prosthesis model: Experimental data and verification.

    abstract：:The reverse shoulder prosthesis aims to restore the stability and function of pathological shoulders, but the biomechanical aspects of the geometrical changes induced by the implant are yet to be fully understood. Considering a large-scale musculoskeletal model of the upper limb, the aim of this study is to evaluate h...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2015.06.031

    authors： Martins A,Quental C,Folgado J,Ambrósio J,Monteiro J,Sarmento M

    更新日期：2015-09-18 00:00:00

  • Femoral neck bone adaptation to weight-bearing physical activity by computational analysis.

    abstract：:Individual differences in bone mass distribution at the proximal femur may be determined by daily weight-bearing physical activity (PA) since bone self-adapts according to the mechanical loads that is submitted. The aim of this study was to analyse computationally the effect of different weight-bearing PA types in the...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2013.06.031

    authors： Machado MM,Fernandes PR,Cardadeiro G,Baptista F

    更新日期：2013-09-03 00:00:00

  • Hip contact forces and gait patterns from routine activities.

    abstract：:In vivo loads acting at the hip joint have so far only been measured in few patients and without detailed documentation of gait data. Such information is required to test and improve wear, strength and fixation stability of hip implants. Measurements of hip contact forces with instrumented implants and synchronous ana...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/s0021-9290(01)00040-9

    authors： Bergmann G,Deuretzbacher G,Heller M,Graichen F,Rohlmann A,Strauss J,Duda GN

    更新日期：2001-07-01 00:00:00

  • Factors influencing performance in the Hecht vault and implications for modelling.

    abstract：:This paper investigated the factors that influence Hecht vault performance and assessed the level of model complexity required to give an adequate representation of vaulting. A five-segment planar simulation model with a visco-elastic shoulder joint and a torque generator at the shoulder joint was used to simulate the...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2004.02.039

    authors： King MA,Yeadon MR

    更新日期：2005-01-01 00:00:00

  • Versatile and inexpensive Hall-Effect force sensor for mechanical characterization of soft biological materials.

    abstract：:Mismatch of hierarchical structure and mechanical properties between tissue-engineered implants and native tissue may result in signal cues that negatively impact repair and remodeling. With bottom-up tissue engineering approaches, designing tissue components with proper microscale mechanical properties is crucial to ...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2016.11.065

    authors： Backman DE,LeSavage BL,Wong JY

    更新日期：2017-01-25 00:00:00

  • Evaluation of fracture toughness of human dentin using elastic-plastic fracture mechanics.

    abstract：:Dentin, the mineralized tissue forming the bulk of the tooth, lies between the enamel and the pulp chamber. It is a rich source of inspiration for designing novel synthetic materials due to its unique microstructure. Most of the previous studies investigating the fracture toughness of dentin have used linear-elastic f...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2008.01.015

    authors： Yan J,Taskonak B,Platt JA,Mecholsky JJ Jr

    更新日期：2008-01-01 00:00:00

  • Study of tumor blood perfusion and its variation due to vascular normalization by anti-angiogenic therapy based on 3D angiogenic microvasculature.

    abstract：:The coupling of intravascular and interstitial flow is a distinct feature of tumor microcirculation, due to high vessel permeability, low osmotic pressure gradient and absence of functional lymphatic system inside tumors. We have previously studied the tumor microcirculation by using a 2D coupled model. In this paper,...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2009.01.009

    authors： Wu J,Long Q,Xu S,Padhani AR

    更新日期：2009-04-16 00:00:00

  • The impact of boundary conditions on surface curvature of polypropylene mesh in response to uniaxial loading.

    abstract：:Exposure following pelvic organ prolapse repair has been observationally associated with wrinkling of the implanted mesh. The purpose of this study was to quantify the impact of variable boundary conditions on the out-of-plane deformations of mesh subjected to tensile loading. Using photogrammetry and surface curvatur...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2015.02.061

    authors： Barone WR,Amini R,Maiti S,Moalli PA,Abramowitch SD

    更新日期：2015-06-25 00:00:00

  • Modeling methodology for defining a priori the hydrodynamics of a dynamic suspension bioreactor. Application to human induced pluripotent stem cell culture.

    abstract：:Three-dimensional dynamic suspension is becoming an effective cell culture method for a wide range of bioprocesses, with an increasing number of bioreactors proposed for this purpose. The complex hydrodynamics establishing within these devices affects bioprocess outcomes and efficiency, and usually expensive in vitro ...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2019.07.021

    authors： Isu G,Morbiducci U,De Nisco G,Kropp C,Marsano A,Deriu MA,Zweigerdt R,Audenino A,Massai D

    更新日期：2019-09-20 00:00:00

  • Matrix mechanical properties of transversalis fascia in inguinal herniation as a model for tissue expansion.

    abstract：:Inguinal herniation represents a common condition requiring surgical intervention. Despite being regarded as a connective tissue disorder of uncertain cause, research has focused predominantly on biochemical changes in the key tissue layer, the transversalis fascia (TF) with little direct analysis of functional tissue...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2008.08.018

    authors： Kureshi A,Vaiude P,Nazhat SN,Petrie A,Brown RA

    更新日期：2008-12-05 00:00:00

  • Balance control during stair negotiation in older adults.

    abstract：:Stair negotiation is among the most challenging and hazardous types of locomotion for older people. However, the effect of aging on balance control during stair negotiation has not been investigated. Instantaneous inclination angles between the center of mass (CoM) and center of pressure (CoP) have been reported to de...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2006.11.001

    authors： Lee HJ,Chou LS

    更新日期：2007-01-01 00:00:00

  • Comparison of micro-level and continuum-level voxel models of the proximal femur.

    abstract：:Continuum-level finite element (FE) models became standard computational tools for the evaluation of bone mechanical behavior from in vivo computed tomography scans. Such scans do not account for the anisotropy of the bone. Instead, local mechanical properties in the continuum-level FE models are assumed isotropic and...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2005.10.027

    authors： Verhulp E,van Rietbergen B,Huiskes R

    更新日期：2006-01-01 00:00:00

  • Rotational kinematics of pelvis and upper trunk at butterfly stroke: Can fins affect the dynamics of the system?

    abstract：:The purpose of the present study was to investigate the rotational kinematics pattern of the upper trunk and the pelvis and the complexity-variability of their movement, during the sprint butterfly stroke between male and female swimmers with long fins (18-26 cm) and without fins. Two pairs of 3D accelerometers and gy...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2016.01.004

    authors： Averianova A,Nikodelis T,Konstantakos V,Kollias I

    更新日期：2016-02-08 00:00:00

  • Application and validation of the lattice Boltzmann method for modelling flow-related clotting.

    abstract：:The purpose of this paper is to present a simple clotting model, based on residence time and shear stress distribution, that can simulate the deposition over time of enzyme-activated milk in an in vitro system. Results for the model are compared with experiments exhibiting clot deposition in the region of a sharp-edge...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2007.01.026

    authors： Harrison SE,Smith SM,Bernsdorf J,Hose DR,Lawford PV

    更新日期：2007-01-01 00:00:00

  • Modela-r as a Froude and Strouhal dimensionless numbers combination for dynamic similarity in running.

    abstract：:The aim of this study was to test the hypothesis that running at fixed fractions of Froude (Nfr) and Strouhal (Str) dimensionless numbers combinations induce dynamic similarity between humans of different sizes. Nineteen subjects ran in three experimental conditions, (i) constant speed, (ii) similar speed (Nfr) and (i...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2014.10.012

    authors： Villeger D,Costes A,Watier B,Moretto P

    更新日期：2014-12-18 00:00:00

  • Expedited patient-specific assessment of contact stress exposure in the ankle joint following definitive articular fracture reduction.

    abstract：:Acute injury severity, altered joint kinematics, and joint incongruity are three important mechanical factors linked to post-traumatic osteoarthritis (PTOA). Finite element analysis (FEA) was previously used to assess the influence of increased contact stress due to joint incongruity on PTOA development. While promisi...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2015.05.030

    authors： Kern AM,Anderson DD

    更新日期：2015-09-18 00:00:00

  • Cervical spine morphology and ligament property variations: A finite element study of their influence on sagittal bending characteristics.

    abstract：:Cervical spine finite element models reported in biomechanical literature usually represent a static morphology. Not considering morphology as a model parameter limits the predictive capabilities for applications in personalized medicine, a growing trend in modern clinical practice. The objective of the study was to i...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/j.jbiomech.2018.12.044

    authors： John JD,Saravana Kumar G,Yoganandan N

    更新日期：2019-03-06 00:00:00

  • Measurement of whole-body vibration by double-pulsed holography.

    abstract：:A technique for registering vibration and deformation patterns has been adapted for the measurement of whole-body vibration in humans. Double-exposure holographic interferometry produces three dimensional pictures of the body, allowing exact measurement of the subject's movement between the two pulses. In this study a...

    journal_title：Journal of biomechanics

    pub_type： 杂志文章

    doi：10.1016/0021-9290(84)90036-8

    authors： Wangenheim M,Holzmann P,Svensson LB

    更新日期：1984-01-01 00:00:00