Download or read book Modeling and Simulation of Skeletal Muscle for Computer Graphics written by Dongwoon Lee and published by Foundations and Trends(r) in C. This book was released on 2012 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surveys various approaches to model and simulate muscles both morphologically and functionally.
Download or read book Biomechanical Models for Soft Tissue Simulation written by Walter Maurel and published by Springer Science & Business Media. This book was released on 2013-11-22 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of biomechanical modeling of human soft tissue using nonlinear theoretical mechanics and incremental finite element methods, useful for computer simulation of the human musculoskeletal system.
Download or read book Computer Models in Biomechanics written by Gerhard A. Holzapfel and published by Springer Science & Business Media. This book was released on 2012-10-16 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a collection of papers that were presented at the IUTAM Symposium on “Computer Models in Biomechanics: From Nano to Macro” held at Stanford University, California, USA, from August 29 to September 2, 2011. It contains state-of-the-art papers on: - Protein and Cell Mechanics: coarse-grained model for unfolded proteins, collagen-proteoglycan structural interactions in the cornea, simulations of cell behavior on substrates - Muscle Mechanics: modeling approaches for Ca2+–regulated smooth muscle contraction, smooth muscle modeling using continuum thermodynamical frameworks, cross-bridge model describing the mechanoenergetics of actomyosin interaction, multiscale skeletal muscle modeling - Cardiovascular Mechanics: multiscale modeling of arterial adaptations by incorporating molecular mechanisms, cardiovascular tissue damage, dissection properties of aortic aneurysms, intracranial aneurysms, electromechanics of the heart, hemodynamic alterations associated with arterial remodeling following aortic coarctation, patient-specific surgery planning for the Fontan procedure - Multiphasic Models: solutes in hydrated biological tissues, reformulation of mixture theory-based poroelasticity for interstitial tissue growth, tumor therapies of brain tissue, remodeling of microcirculation in liver lobes, reactions, mass transport and mechanics of tumor growth, water transport modeling in the brain, crack modeling of swelling porous media - Morphogenesis, Biological Tissues and Organs: mechanisms of brain morphogenesis, micromechanical modeling of anterior cruciate ligaments, mechanical characterization of the human liver, in vivo validation of predictive models for bone remodeling and mechanobiology, bridging scales in respiratory mechanics
Download or read book Computer graphics modeling of the musculo skeletal system of the human arm written by Sam M. Wood and published by . This book was released on 1990 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling the Motion of Human Muscle Systems with Computer Graphics written by Glenn Gordon Smith and published by . This book was released on 1990 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Skeletal Muscle Contraction Simulation written by Jonathan M. Ford and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer generated three-dimensional (3-D) models are being used at increasing rates in the fields of entertainment, education, research, and engineering. One of the aspects of interest includes the behavior and function of the musculoskeletal system. One such tool used by engineers is the finite element method (FEM) to simulate the physics behind muscle mechanics. There are several ways to represent 3-D muscle geometry, namely a bulk, a central line of action and a spline model. The purpose of this study is to exmine how these three representations affect the overall outcome of muscle movement. This is examined in a series of phases with Phase I using primitive geometry as a simplistic representation of muscle. Phases II and III add anatomical representations of the shoulder joint with increasing complexity. Two methods of contraction focused on an applied maximal force (Fmax) and prescribed displacement. Further analyses tested the variability of material properties as well as simulated injury scenarios. The results were compared based on displacement, von Mises stress and solve time. As expected, more complex models took longer to solve. It was also supported that applied force is a preferred method of contraction as it allows for antagonistic and synergistic interaction between muscles. The most important result found in these studies was the consistency in the levels of displacement and stress distribution across the three different 3-D representations of muscle. This stability allows for the interchangeability between the three different representations of muscles and will permit researchers to choose to use either a bulk, central line of action or a spline model. The determination of which 3-D representation to use lies in what physical phenomenon (motion, injury etc.) is being simulated.
Download or read book A Coupled Electro Chemical Mechanical Multi Scale Computational Framework for Simulation of Skeletal Muscles written by Yantao Zhang and published by . This book was released on 2015 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work focuses on electro-chemical-mechanical multi-scale simulation of the excitation-contraction of skeletal muscle, including electro-chemical excitation process in the neural system which activates the contraction of muscle fibers, the combined effects of active fiber contraction and passive extracellular matrix (ECM) mechanical deformation, and their resulting force generation in the muscle components. In the neural systems, the Fitzhugh-Nagumo (FHN) equation is solved to simulate the propagation of neural signals (action potential) in neural trees and muscle fibers using multi-dimensional FHN discretizations. The calculated neural signal is consequently used as the input for the calcium dynamics model, which describes the chemical processes in the muscle fibers. Based on the calculated calcium concentration, the activation distribution in the muscle tissue is then obtained, which determines the active force muscle fiber can generate voluntarily. To study the mechanics associated with the composition of muscle fibers and ECM, the microstructure of skeletal muscle is reconstructed from images, from which the homogenized material property in the continuum level is calculated. By varying the microstructure model, their morphological effect on the muscle performance is studied and compared with experimental observation. Computationally, the physiological models in excitation dynamics are solved by finite difference methods, and their accuracy, efficiency and stability conditions are studied respectively. For the cellular and component scale models, the 3-dimensional reproducing kernel particle method (RKPM) together with stabilized conforming nodal integration are employed. The simulation models are constructed based on medical images, where the pixel points are directly used as meshfree nodes. This computational model has been used to investigate the source of reduced force generation associated with ageing or diseases within muscles due to the malfunctioning in the subscale units. Through the proposed computational models, this research demonstrates how the stiffened connective tissue reduces force generation and how the frequency of neural stimulation affects force generation in the skeletal muscle.
Download or read book Mechanical Simulation of Human Skeletal Muscles written by Abid Latif Khan and published by . This book was released on 1977 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Skeletal Muscle Structure and Function written by Richard L. Lieber and published by . This book was released on 1992 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Models of Skeletal Muscle written by Marcelo Epstein and published by . This book was released on 1998-06-18 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the structural, mechanical and neurophysiological properties of skeletal muscle as they relate to force and movement and translates these properties into rigorous and mechanically consistent models of skeletal muscle. Including a chapter on modelling skeletal muscle using simple shapes and a comprehensive discussion of the molecular events of muscular force production. Theoretical Models of Skeletal Muscle will be invaluable reading for professionals and students within the fields of biomechanics, kinesiology, sports science and physiotherapy. The workings of the "cross-bridge model," the "Hill model," the "energetics model," and a model based on continuum mechanics are evaluated in detail.
Download or read book An accurate and dynamic computer graphics muscle model written by David Asher Levine and published by . This book was released on 1997 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graphical Simulation of the Motion of Articulated Bodies Such as Humans and Robots with Particular Emphasis on the Use of Dynamic Analysis written by Jane Patricia Wilhelms and published by . This book was released on 1985 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling of Excitation in Skeletal Muscle written by Sabrina Kinzie Metzger and published by . This book was released on 2021 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent experimental findings in the Rich lab suggest there are important gaps in our understanding of muscle excitability in various disease states. To generate and test hypotheses as well as to determine whether our current understanding of various aspects of muscle excitation can fully explain experimental findings, an accurate model of muscle excitation was needed. Previous studies have modeled excitation of muscle, but in each case, important aspects were omitted. One reason for this is that little effort has been made to accurately simulate muscle action potentials. In this thesis I present progress made towards generation of a model of muscle excitation that more accurately simulates experimental data than any model to date. I began by accurately simulating the spatial arrangement of t-tubules based on recent detailed imaging studies of t-tubules performed in the Voss lab. This allowed examination of whether the reduction in t-tubule diameter in muscle from a mouse model of Huntington's disease could account for the reduction in muscle capacitance. My simulations indicate the reduction in t-tubule diameter is insufficient to explain the reduction in capacitance and suggest there is an alteration of muscle membrane itself in Huntington's disease. I next derived parameters used to simulate the behavior of ion channels involved in generation of action potentials. I did this by reverse engineering the parameters from action potentials recorded in the Rich lab. The derived parameters led to more accurate modeling of action potentials than previously possible. In addition, sensitivity analysis was performed to identify the key parameters that govern action potential characteristics. Finally, I combined t-tubule geometry with the accurately simulated action potentials to explore the currently accepted idea that action potential propagation into t-tubules is necessary for the process of excitation contraction coupling. My simulations suggest action potential-induced depolarization may spread to the center of fibers intracellularly such that action potential propagation into t-tubules is not necessary for excitation contraction coupling. If true, this would be a significant departure from the current understanding of the role of t-tubules in excitation contraction coupling. My model opens the way for future studies of dysregulation of muscle excitability in a number of different muscle diseases.
Download or read book Mechanical Modeling of Skeletal Muscle Functioning written by Bart Jochem Julius Joost van der Linden and published by . This book was released on 1998 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deformation Models written by Manuel González Hidalgo and published by Springer Science & Business Media. This book was released on 2012-10-29 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computational modelling of deformations has been actively studied for the last thirty years. This is mainly due to its large range of applications that include computer animation, medical imaging, shape estimation, face deformation as well as other parts of the human body, and object tracking. In addition, these advances have been supported by the evolution of computer processing capabilities, enabling realism in a more sophisticated way. This book encompasses relevant works of expert researchers in the field of deformation models and their applications. The book is divided into two main parts. The first part presents recent object deformation techniques from the point of view of computer graphics and computer animation. The second part of this book presents six works that study deformations from a computer vision point of view with a common characteristic: deformations are applied in real world applications. The primary audience for this work are researchers from different multidisciplinary fields, such as those related with Computer Graphics, Computer Vision, Computer Imaging, Biomedicine, Bioengineering, Mathematics, Physics, Medical Imaging and Medicine.
Download or read book Computational Modeling of Skeletal Muscle in the Hierarchical Microstructure written by Jens Lamsfuß and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Animals with Bones Muscles and Skin written by Jane Wilhelms and published by . This book was released on 1995 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
