Circulatory Response To The Upright Posture
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Author | : James J. Smith |
Publisher | : CRC Press |
Total Pages | : 200 |
Release | : 1990-09-24 |
Genre | : Medical |
ISBN | : 9780849365188 |
This is the only up-to-date systematic review of normal human response to upright posture and lower body negative pressure (LBNP). It analyzes the key factors that influence postural tolerance, such as physical fitness, weightlessness, age, and sex. It also provides extensive details on the circulatory changes that have occurred during U.S. and Soviet manned space flights. The text is brilliantly illustrated with diagrams, tables, and comments on circulatory methods. Readers will discover some information which has never before been published. This one-of-a-kind volume also reviews the diagnosis and treatment of orthostatic hypotension-an extremely common orthostatic disorder. Circulatory Response to the Upright Posture is the first available literature since 1982 of human physiological and pathophysiological aspects of postural tolerance. A wide variety of readers will find this title interesting and of value. Circulatory physiologists, cardiologists, and everyone with an interest in exercise physiology, aging, space physiology, and environmental physiology will especially benefit from this writing.
Author | : Maxime Cannesson |
Publisher | : Cambridge University Press |
Total Pages | : 301 |
Release | : 2014-09-04 |
Genre | : Medical |
ISBN | : 1316061442 |
This unique book provides clinicians and administrators with a comprehensive understanding of perioperative hemodynamic monitoring and goal directed therapy, emphasizing practical guidance for implementation at the bedside. Successful hemodynamic monitoring and goal directed therapy require a wide range of skills. This book will enable readers to: • Detail the rationale for using perioperative hemodynamic monitoring systems and for applying goal directed therapy protocols at the bedside • Understand the physiological concepts underlying perioperative goal directed therapy for hemodynamic management • Evaluate hemodynamic monitoring systems in clinical practice • Learn about new techniques for achieving goal directed therapy • Apply goal directed therapy protocols in the perioperative environment (including emergency departments, operating rooms and intensive care units) • Demonstrate clinical utility of GDT and hemodynamic optimization using case presentations. Illustrated with diagrams and case examples, this is an important resource for anesthesiologists, emergency physicians, intensivists and pneumonologists as well as nurses and administrative officers.
Author | : Hanns-Christian Gunga |
Publisher | : Springer |
Total Pages | : 87 |
Release | : 2016-07-14 |
Genre | : Medical |
ISBN | : 3319332260 |
This book comprehensively describes the physiological changes and consequences that occur in humans during spaceflight. It specifically presents the adaptations of the cardiovascular and the respiratory system. Specific changes occurring after 10, 20 or more days in space are depicted. Furthermore, the book explains various effective countermeasures that are required upon return of the astronauts to Earth. The book is a must-have for all biomedical and clinical researchers in the field of cardiovascular biology and respiration, and a fascinating reading for all interested laymen, who wish to understand a bit more about spaceflight research and technology.
Author | : Nico Westerhof |
Publisher | : Springer Science & Business Media |
Total Pages | : 182 |
Release | : 2006-01-12 |
Genre | : Medical |
ISBN | : 0387233466 |
Hemodynamics makes it possible to characterize in a quantitative way, the function of the heart and arterial system, thereby producing information about what genetic and molecular processes are of importance for cardiovascular function. Snapshots of Hemodynamics: An Aid for Clinical Research and Graduate Education by Nico Westerhof, Nikos Stergiopulos and Mark I. M. Noble is a quick reference guide designed to help basic and clinical researchers as well as graduate students to understand hemodynamics. The layout of the book provides short and independent chapters that provide teaching diagrams as well as clear descriptions of the essentials of basic and applied principles of hemodynamics. References are provided at the end of each chapter for further reading and reference.
Author | : Kerry Brandis |
Publisher | : |
Total Pages | : 326 |
Release | : 1997 |
Genre | : Anesthetics |
ISBN | : 9780646315065 |
Author | : Richard E. Klabunde |
Publisher | : Lippincott Williams & Wilkins |
Total Pages | : 689 |
Release | : 2020-12-01 |
Genre | : Medical |
ISBN | : 1975150090 |
Praised for its concise coverage, this highly accessible monograph lays a foundation for understanding the underlying concepts of normal cardiovascular function and offers a welcome alternative to a more mechanistically oriented approach or an encyclopedic physiology text. Clear explanations, ample illustrations and engaging clinical cases and problems provide the perfect guidance for self-directed learning and prepare you to excel in clinical practice.
Author | : C. J. Mathias |
Publisher | : Oxford University Press, USA |
Total Pages | : 562 |
Release | : 1999 |
Genre | : Medical |
ISBN | : 9780192628510 |
This fourth edition of Autonomic Failure (now available in paperback) covers the many recent advances made in our understanding of the autonomic nervous system. There are 20 new chapters and extensive revisions of all other contributions. Autonomic failure, fourth edition makes diagnosis increasingly precise by fully evaluating the underlying anatomical and functional deficits, thereby allowing more effective treatment. This new edition continues to provide practitioners from a variety of fields, including neurology, cardiology, geriatric medicine, diabetology, and internal medicine, with a rational guide to aid in the recognition and management of autonomic disorders. The book starts with an updated classification of autonomic disorders and a history of the autonomic nervous system. The first two sections of the book deal with the fundamental aspects of autonomic structure, function, and integration. There are new chapters dealing with neurobiology, nerve growth factors, genetic mutations, neural and hormonal control of the cerebral circulation, innervation of the lung, and pathophysiological mechanisms causing nausea and vomiting. Advances in the clinical management of autonomic disorders are critically dependent on the bridge made between the basic and applied sciences.
Author | : Ronald J. Korthuis |
Publisher | : Morgan & Claypool Publishers |
Total Pages | : 147 |
Release | : 2011 |
Genre | : Medical |
ISBN | : 1615041834 |
The aim of this treatise is to summarize the current understanding of the mechanisms for blood flow control to skeletal muscle under resting conditions, how perfusion is elevated (exercise hyperemia) to meet the increased demand for oxygen and other substrates during exercise, mechanisms underlying the beneficial effects of regular physical activity on cardiovascular health, the regulation of transcapillary fluid filtration and protein flux across the microvascular exchange vessels, and the role of changes in the skeletal muscle circulation in pathologic states. Skeletal muscle is unique among organs in that its blood flow can change over a remarkably large range. Compared to blood flow at rest, muscle blood flow can increase by more than 20-fold on average during intense exercise, while perfusion of certain individual white muscles or portions of those muscles can increase by as much as 80-fold. This is compared to maximal increases of 4- to 6-fold in the coronary circulation during exercise. These increases in muscle perfusion are required to meet the enormous demands for oxygen and nutrients by the active muscles. Because of its large mass and the fact that skeletal muscles receive 25% of the cardiac output at rest, sympathetically mediated vasoconstriction in vessels supplying this tissue allows central hemodynamic variables (e.g., blood pressure) to be spared during stresses such as hypovolemic shock. Sympathetic vasoconstriction in skeletal muscle in such pathologic conditions also effectively shunts blood flow away from muscles to tissues that are more sensitive to reductions in their blood supply that might otherwise occur. Again, because of its large mass and percentage of cardiac output directed to skeletal muscle, alterations in blood vessel structure and function with chronic disease (e.g., hypertension) contribute significantly to the pathology of such disorders. Alterations in skeletal muscle vascular resistance and/or in the exchange properties of this vascular bed also modify transcapillary fluid filtration and solute movement across the microvascular barrier to influence muscle function and contribute to disease pathology. Finally, it is clear that exercise training induces an adaptive transformation to a protected phenotype in the vasculature supplying skeletal muscle and other tissues to promote overall cardiovascular health. Table of Contents: Introduction / Anatomy of Skeletal Muscle and Its Vascular Supply / Regulation of Vascular Tone in Skeletal Muscle / Exercise Hyperemia and Regulation of Tissue Oxygenation During Muscular Activity / Microvascular Fluid and Solute Exchange in Skeletal Muscle / Skeletal Muscle Circulation in Aging and Disease States: Protective Effects of Exercise / References
Author | : Joint National Committee on Detection, Evaluation, and Treatment of High Blood Pressure |
Publisher | : |
Total Pages | : 20 |
Release | : |
Genre | : Hypertension |
ISBN | : |
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 417 |
Release | : 2003-01-22 |
Genre | : Law |
ISBN | : 0309084369 |
The polygraph, often portrayed as a magic mind-reading machine, is still controversial among experts, who continue heated debates about its validity as a lie-detecting device. As the nation takes a fresh look at ways to enhance its security, can the polygraph be considered a useful tool? The Polygraph and Lie Detection puts the polygraph itself to the test, reviewing and analyzing data about its use in criminal investigation, employment screening, and counter-intelligence. The book looks at: The theory of how the polygraph works and evidence about how deceptivenessâ€"and other psychological conditionsâ€"affect the physiological responses that the polygraph measures. Empirical evidence on the performance of the polygraph and the success of subjects' countermeasures. The actual use of the polygraph in the arena of national security, including its role in deterring threats to security. The book addresses the difficulties of measuring polygraph accuracy, the usefulness of the technique for aiding interrogation and for deterrence, and includes potential alternativesâ€"such as voice-stress analysis and brain measurement techniques.