Muscle Biophysics

Muscle Biophysics PDF Author: Rassier Dilson J.E
Publisher: Springer Science & Business Media
ISBN: 1441963669
Category : Science
Languages : en
Pages : 360

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Book Description
Muscle contraction has been the focus of scientific investigation for more than two centuries, and major discoveries have changed the field over the years. Early in the twentieth century, Fenn (1924, 1923) showed that the total energy liberated during a contraction (heat + work) was increased when the muscle was allowed to shorten and perform work. The result implied that chemical reactions during contractions were load-dependent. The observation underlying the “Fenn effect” was taken to a greater extent when Hill (1938) published a pivotal study showing in details the relation between heat production and the amount of muscle shortening, providing investigators with the force-velocity relation for skeletal muscles. Subsequently, two papers paved the way for the current paradigm in the field of muscle contraction. Huxley and Niedergerke (1954), and Huxley and Hanson (1954) showed that the width of the A-bands did not change during muscle stretch or activation. Contraction, previously believed to be caused by shortening of muscle filaments, was associated with sliding of the thick and thin filaments. These studies were followed by the classic paper by Huxley (1957), in which he conceptualized for the first time the cross-bridge theory; filament sliding was driven by the cyclical interactions of myosin heads (cross-bridges) with actin. The original cross-bridge theory has been revised over the years but the basic features have remained mostly intact. It now influences studies performed with molecular motors responsible for tasks as diverse as muscle contraction, cell division and vesicle transport.

Muscle Biophysics

Muscle Biophysics PDF Author: Rassier Dilson J.E
Publisher: Springer Science & Business Media
ISBN: 1441963669
Category : Science
Languages : en
Pages : 360

Get Book Here

Book Description
Muscle contraction has been the focus of scientific investigation for more than two centuries, and major discoveries have changed the field over the years. Early in the twentieth century, Fenn (1924, 1923) showed that the total energy liberated during a contraction (heat + work) was increased when the muscle was allowed to shorten and perform work. The result implied that chemical reactions during contractions were load-dependent. The observation underlying the “Fenn effect” was taken to a greater extent when Hill (1938) published a pivotal study showing in details the relation between heat production and the amount of muscle shortening, providing investigators with the force-velocity relation for skeletal muscles. Subsequently, two papers paved the way for the current paradigm in the field of muscle contraction. Huxley and Niedergerke (1954), and Huxley and Hanson (1954) showed that the width of the A-bands did not change during muscle stretch or activation. Contraction, previously believed to be caused by shortening of muscle filaments, was associated with sliding of the thick and thin filaments. These studies were followed by the classic paper by Huxley (1957), in which he conceptualized for the first time the cross-bridge theory; filament sliding was driven by the cyclical interactions of myosin heads (cross-bridges) with actin. The original cross-bridge theory has been revised over the years but the basic features have remained mostly intact. It now influences studies performed with molecular motors responsible for tasks as diverse as muscle contraction, cell division and vesicle transport.

Comprehensive Biophysics

Comprehensive Biophysics PDF Author:
Publisher: Academic Press
ISBN: 0080957188
Category : Science
Languages : en
Pages : 3533

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Book Description
Biophysics is a rapidly-evolving interdisciplinary science that applies theories and methods of the physical sciences to questions of biology. Biophysics encompasses many disciplines, including physics, chemistry, mathematics, biology, biochemistry, medicine, pharmacology, physiology, and neuroscience, and it is essential that scientists working in these varied fields are able to understand each other's research. Comprehensive Biophysics, Nine Volume Set will help bridge that communication gap. Written by a team of researchers at the forefront of their respective fields, under the guidance of Chief Editor Edward Egelman, Comprehensive Biophysics, Nine Volume Set provides definitive introductions to a broad array of topics, uniting different areas of biophysics research - from the physical techniques for studying macromolecular structure to protein folding, muscle and molecular motors, cell biophysics, bioenergetics and more. The result is this comprehensive scientific resource - a valuable tool both for helping researchers come to grips quickly with material from related biophysics fields outside their areas of expertise, and for reinforcing their existing knowledge. Biophysical research today encompasses many areas of biology. These studies do not necessarily share a unique identifying factor. This work unites the different areas of research and allows users, regardless of their background, to navigate through the most essential concepts with ease, saving them time and vastly improving their understanding The field of biophysics counts several journals that are directly and indirectly concerned with the field. There is no reference work that encompasses the entire field and unites the different areas of research through deep foundational reviews. Comprehensive Biophysics fills this vacuum, being a definitive work on biophysics. It will help users apply context to the diverse journal literature offering, and aid them in identifying areas for further research Chief Editor Edward Egelman (E-I-C, Biophysical Journal) has assembled an impressive, world-class team of Volume Editors and Contributing Authors. Each chapter has been painstakingly reviewed and checked for consistent high quality. The result is an authoritative overview which ties the literature together and provides the user with a reliable background information and citation resource

Biophysics of the Failing Heart

Biophysics of the Failing Heart PDF Author: R. John Solaro
Publisher: Springer Science & Business Media
ISBN: 146147678X
Category : Science
Languages : en
Pages : 254

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Book Description
Subjects in the monograph “Biophysics of the Failing Heart” include state of the art chapters considering major biophysical mechanisms for why hearts responding to acquired or inherited stressors enter into maladaptive processes eventually leading to an inability of the heart to respond efficiently to hemodynamic loads especially during exercise. The chapters describe biophysical techniques that have been applied to determine the triggers for the heart failure process as well as the mechanisms for sustaining the disorders. These techniques include measurements of active and passive mechanical properties and hemodynamics at levels of organization ranging from molecules to hearts beating in situ. Biophysical concepts and approaches are also applied to determination of signaling and signal transduction, energetics, ionic currents, transport processes, electro-chemical and chemo-mechanical coupling. By its emphasis on biophysical aspects of a prevalent clinical condition, the monograph is unique in its perspective and focus. The breadth of information in the chapters all in one place will be of value to clinicians and researchers at all levels. Modern research approaches and clinical understanding of heart failure demands integration of multiple aspects of the disorders. In most cases, combinations of clinician scientists and researchers author the chapters. A main benefit of the book is couched in its didactic approach together with its emphasis on how biophysical concepts and techniques aid in diagnosis and development of new therapies.

Biophysics

Biophysics PDF Author: Patrick F. Dillon
Publisher: Cambridge University Press
ISBN: 1107001447
Category : Science
Languages : en
Pages : 315

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Book Description
They are each directed toward the understanding of a biological principle, with a particular emphasis on human biology.

The Journal of Biophysics

The Journal of Biophysics PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 424

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Book Description


Cellular Aspects of Smooth Muscle Function

Cellular Aspects of Smooth Muscle Function PDF Author: C. Y. Kao
Publisher: Cambridge University Press
ISBN: 9780521482103
Category : Medical
Languages : en
Pages : 324

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Book Description
Smooth muscles line many internal organs and, in general, are involved in moving fluids and slurry around the body. They are controlled by the action of hormones, by nervous stimulation, and can be influenced by drugs. This 1997 book provides a review of our understanding of smooth muscle and integrates molecular, cellular and physiological information with tissue and anatomical studies. Well-known researchers have written chapters giving detailed reviews of our current knowledge of the biochemistry, pharmacology, physiology and anatomy of smooth muscle. In particular, they cover the seven most important areas of smooth muscle function including morphology, electrophysiology, mechanisms of electromechanical and pharmacomechanical coupling, calcium homeostasis, signal transduction, mechanics of contraction, and the contractile proteins. All those interested in muscular contraction will find this book worthwhile, whether they are biochemists, physiologists, or cell biologists.

Skeletal Muscle

Skeletal Muscle PDF Author: Brian R. MacIntosh
Publisher: Human Kinetics
ISBN: 9780736045179
Category : Medical
Languages : en
Pages : 436

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Book Description
Provides readers with a detailed understanding of the different facets of muscle physiology. Examines motoneuron and muscle structure and function. It is intended for those need to know about skeletal muscle--from undergraduate and graduate students gaining advanced knowledge in kinesiology to physiotherapists, physiatrists, and other professionals whose work demands understanding of muscle form and function.

Multiple Muscle Systems

Multiple Muscle Systems PDF Author: Jack M. Winters
Publisher: Springer Science & Business Media
ISBN: 1461390303
Category : Science
Languages : en
Pages : 818

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Book Description
The picture on the front cover of this book depicts a young man pulling a fishnet, a task of practical relevance for many centuries. It is a complex task, involving load transmission throughout the body, intricate balance, and eye head-hand coordination. The quest toward understanding how we perform such tasks with skill and grace, often in the presence of unpredictable pertur bations, has a long history. However, despite a history of magnificent sculptures and drawings of the human body which vividly depict muscle ac tivity and interaction, until more recent times our state of knowledge of human movement was rather primitive. During the past century this has changed; we now have developed a considerable database regarding the com position and basic properties of muscle and nerve tissue and the basic causal relations between neural function and biomechanical movement. Over the last few decades we have also seen an increased appreciation of the impor tance of musculoskeletal biomechanics: the neuromotor system must control movement within a world governed by mechanical laws. We have now col lected quantitative data for a wealth of human movements. Our capacity to understand the data we collect has been enhanced by our continually evolving modeling capabilities and by the availability of computational power. What have we learned? This book is designed to help synthesize our current knowledge regarding the role of muscles in human movement. The study of human movement is not a mature discipline.

Biophysics

Biophysics PDF Author: C. Sybesma
Publisher: Springer Science & Business Media
ISBN: 9780792300298
Category : Science
Languages : en
Pages : 338

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Book Description
Today, courses on biophysics are taught in almost all universities in the world, often in separate biophysics departments or divisions. This reflects the enormous growth of the field, even though the problem of its formal definition remains unsettled. In spite of this lack of definition, biophysics, which can be considered as an amalgamation of the biological and the physical sciences, is recognized as a major scientific activity that has led to spectacular developments in biology. It has increased our knowledge of biological systems to such an extent that even industrial and commercial interests are now beginning to put their stamps on biological research. A major part of these developments took place during the last two decades. Therefore, an introductory textbook on biophysics that was published a dozen years ago (c. Sybesma, An Introduction to Biophysics, Academic Press, 1977) no longer could fulfil " ... the need for a comprehensive but elementary textbook ... -" (R. Cammack, Nature 272 (1978), 96). However, because of the increased proliferation of biophysics into higher education, the need for introductory course texts on biophysics is stronger than ever. This fact, together with valuable comments of many readers, have encouraged me to revise the original book.

Nerve and Muscle

Nerve and Muscle PDF Author: R. D. Keynes
Publisher: Cambridge University Press
ISBN: 9780521805841
Category : Medical
Languages : en
Pages : 196

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Book Description
Essential textbook for all undergraduate students of neurobiology, physiology, cell biology and preclinical medicine.