Theoretical Considerations on the Modelling of Skeletal Muscle

Theoretical Considerations on the Modelling of Skeletal Muscle PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Theoretical Considerations on the Modelling of Skeletal Muscle

Theoretical Considerations on the Modelling of Skeletal Muscle PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Theoretical Models of Skeletal Muscle

Theoretical Models of Skeletal Muscle PDF Author: Marcelo Epstein
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 266

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Book Description
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.

Skeletal Muscle Mechanics

Skeletal Muscle Mechanics PDF Author: W. Herzog
Publisher: John Wiley & Sons
ISBN: 9780471492382
Category : Science
Languages : en
Pages : 586

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Book Description
Dieses Teilgebiet der Biomechanik ist für Sportwissenschaftler und Physiologen von großer Bedeutung! Die umfassende, aktuelle Abhandlung der Skelettmuskelmechanik beschäftigt sich mit drei Themenkreisen: den Mechanismen der Skelettmuskelkontraktion, der Muskelfunktion in vivo und theoretischen Modellen der Muskelfunktion. Auch ein knapper historischer Abriß und ein Ausblick auf noch offene Fragen fehlen nicht. (08/00)

The Role of Protein and Amino Acids in Sustaining and Enhancing Performance

The Role of Protein and Amino Acids in Sustaining and Enhancing Performance PDF Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309172810
Category : Technology & Engineering
Languages : en
Pages : 448

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Book Description
It is a commonly held belief that athletes, particularly body builders, have greater requirements for dietary protein than sedentary individuals. However, the evidence in support of this contention is controversial. This book is the latest in a series of publications designed to inform both civilian and military scientists and personnel about issues related to nutrition and military service. Among the many other stressors they experience, soldiers face unique nutritional demands during combat. Of particular concern is the role that dietary protein might play in controlling muscle mass and strength, response to injury and infection, and cognitive performance. The first part of the book contains the committee's summary of the workshop, responses to the Army's questions, conclusions, and recommendations. The remainder of the book contains papers contributed by speakers at the workshop on such topics as, the effects of aging and hormones on regulation of muscle mass and function, alterations in protein metabolism due to the stress of injury or infection, the role of individual amino acids, the components of proteins, as neurotransmitters, hormones, and modulators of various physiological processes, and the efficacy and safety considerations associated with dietary supplements aimed at enhancing performance.

Musculoskeletal Disorders and the Workplace

Musculoskeletal Disorders and the Workplace PDF Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309132991
Category : Business & Economics
Languages : en
Pages : 510

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Book Description
Every year workers' low-back, hand, and arm problems lead to time away from jobs and reduce the nation's economic productivity. The connection of these problems to workplace activities-from carrying boxes to lifting patients to pounding computer keyboards-is the subject of major disagreements among workers, employers, advocacy groups, and researchers. Musculoskeletal Disorders and the Workplace examines the scientific basis for connecting musculoskeletal disorders with the workplace, considering people, job tasks, and work environments. A multidisciplinary panel draws conclusions about the likelihood of causal links and the effectiveness of various intervention strategies. The panel also offers recommendations for what actions can be considered on the basis of current information and for closing information gaps. This book presents the latest information on the prevalence, incidence, and costs of musculoskeletal disorders and identifies factors that influence injury reporting. It reviews the broad scope of evidence: epidemiological studies of physical and psychosocial variables, basic biology, biomechanics, and physical and behavioral responses to stress. Given the magnitude of the problem-approximately 1 million people miss some work each year-and the current trends in workplace practices, this volume will be a must for advocates for workplace health, policy makers, employers, employees, medical professionals, engineers, lawyers, and labor officials.

Muscle Homeostasis and Regeneration

Muscle Homeostasis and Regeneration PDF Author: Antonio Musarò
Publisher: MDPI
ISBN: 3039434365
Category : Science
Languages : en
Pages : 500

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Book Description
The book is a collection of original research and review articles addressing the intriguing field of the cellular and molecular players involved in muscle homeostasis and regeneration. One of the most ambitious aspirations of modern medical science is the possibility of regenerating any damaged part of the body, including skeletal muscle. This desire has prompted clinicians and researchers to search for innovative technologies aimed at replacing organs and tissues that are compromised. In this context, the papers, collected in this book, addressing a specific aspects of muscle homeostasis and regeneration under physiopathologic conditions, will help us to better understand the underlying mechanisms of muscle healing and will help to design more appropriate therapeutic approaches to improve muscle regeneration and to counteract muscle diseases.

Biomechanical Models for Soft Tissue Simulation

Biomechanical Models for Soft Tissue Simulation PDF Author: Walter Maurel
Publisher: Springer Science & Business Media
ISBN: 3662035898
Category : Computers
Languages : en
Pages : 188

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Book Description
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.

Biomechanics of Skeletal Muscles

Biomechanics of Skeletal Muscles PDF Author: Vladimir M. Zatsiorsky
Publisher: Human Kinetics
ISBN: 1492582107
Category : Science
Languages : en
Pages : 571

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Book Description
Richly illustrated and presented in clear, concise language, Biomechanics of Skeletal Muscles is an essential resource for those seeking advanced knowledge of muscle biomechanics. Written by leading experts Vladimir Zatsiorsky and Boris Prilutsky, the text is one of the few to look at muscle biomechanics in its entirety—from muscle fibers to muscle coordination—making it a unique contribution to the field. Using a blend of experimental evidence and mechanical models, Biomechanics of Skeletal Muscles provides an explanation of whole muscle biomechanics at work in the body in motion. The book first addresses the mechanical behavior of single muscles—from the sarcomere level up to the entire muscle. The architecture of human muscle, the mechanical properties of tendons and passive muscles, the biomechanics of active muscles, and the force transmission and shock absorption aspects of muscle are explored in detail. Next, the various issues of muscle functioning during human motion are addressed. The transformation from muscle force to joint movements, two-joint muscle function, eccentric muscle action, and muscle coordination are analyzed. This advanced text assumes some knowledge of algebra and calculus; however, the emphasis is on understanding physical concepts. Higher-level computational descriptions are placed in special sections in the later chapters of the book, allowing those with a strong mathematical background to explore this material in more detail. Readers who choose to skip over these sections will find that the book still provides a strong conceptual understanding of advanced topics. Biomechanics of Skeletal Muscles also contains numerous special features that facilitate readers’ comprehension of the topics presented. More than 300 illustrations and accompanying explanations provide an extensive visual representation of muscle biomechanics. Refresher sidebars offer brief reminders of mathematical and biomechanical concepts, and From the Literature sidebars present practical examples that illustrate the concepts under discussion. Chapter summaries and review questions provide an opportunity for reflection and self-testing, and reference lists at the end of each chapter provide a starting point for further study. Biomechanics of Skeletal Muscles offers a thorough explanation of whole muscle biomechanics, bridging the gap between foundational biomechanics texts and scientific literature. With the information found in this text, readers can prepare themselves to better understand the latest in cutting-edge research. Biomechanics of Skeletal Muscles is the third volume in the Biomechanics of Human Motion series. Advanced readers in human movement science gain a comprehensive understanding of the biomechanics of human motion as presented by one of the world’s foremost researchers on the subject, Dr. Vladimir Zatsiorsky. The series begins with Kinematics of Human Motion, which details human body positioning and movement in three dimensions; continues with Kinetics of Human Motion, which examines the forces that create body motion and their effects; and concludes with Biomechanics of Skeletal Muscles, which explains the action of the biological motors that exert force and produce mechanical work during human movement.

Myofilament Function in Health and Disease

Myofilament Function in Health and Disease PDF Author: Julien Ochala
Publisher: Frontiers Media SA
ISBN: 2889451860
Category :
Languages : en
Pages : 163

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Book Description
The present E-book, consisting of a compilation of original articles and reviews, presents how myofilaments are regulated in cardiac and skeletal muscles and trigger contraction. Additionally, this E-book gives insights into their dysregulation in a number of muscle disorders.

The Sliding-Filament Theory of Muscle Contraction

The Sliding-Filament Theory of Muscle Contraction PDF Author: David Aitchison Smith
Publisher: Springer
ISBN: 3030035263
Category : Medical
Languages : en
Pages : 426

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Book Description
Understanding the molecular mechanism of muscle contraction started with the discovery that striated muscle is composed of interdigitating filaments which slide against each other. Sliding filaments and the working-stroke mechanism provide the framework for individual myosin motors to act in parallel, generating tension and loaded shortening with an efficient use of chemical energy. Our knowledge of this exquisitely structured molecular machine has exploded in the last four decades, thanks to a bewildering array of techniques for studying intact muscle, muscle fibres, myofibrils and single myosin molecules. After reviewing the mechanical and biochemical background, this monograph shows how old and new experimental discoveries can be modelled, interpreted and incorporated into a coherent mathematical theory of contractility at the molecular level. The theory is applied to steady-state and transient phenomena in muscle fibres, wing-beat oscillations in insect flight muscle, motility assays and single-molecule experiments with optical trapping. Such a synthesis addresses major issues, most notably whether a single myosin motor is driven by a working stroke or a ratchet mechanism, how the working stroke is coupled to phosphate release, and whether one cycle of attachment is driven by the hydrolysis of one molecule of ATP. Ways in which the theory can be extended are explored in appendices. A separate theory is required for the cooperative regulation of muscle by calcium via tropomyosin and troponin on actin filaments. The book reviews the evolution of models for actin-based regulation, culminating in a model motivated by cryo-EM studies where tropomyosin protomers are linked to form a continuous flexible chain. It also explores muscle behaviour as a function of calcium level, including emergent phenomena such as spontaneous oscillatory contractions and direct myosin regulation by its regulatory light chains. Contraction models can be extended to all levels of calcium-activation by embedding them in a cooperative theory of thin-filament regulation, and a method for achieving this grand synthesis is proposed. Dr. David Aitchison Smith is a theoretical physicist with thirty years of research experience in modelling muscle contractility, in collaboration with experimental groups in different laboratories.