Nutritional Needs in Cold and High-Altitude Environments

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Author :
Publisher : National Academies Press
ISBN 13 : 0309556775
Total Pages : 585 pages
Book Rating : 4.3/5 (95 download)

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Book Synopsis Nutritional Needs in Cold and High-Altitude Environments by : Committee on Military Nutrition Research

Download or read book Nutritional Needs in Cold and High-Altitude Environments written by Committee on Military Nutrition Research and published by National Academies Press. This book was released on 1996-05-29 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the research pertaining to nutrient requirements for working in cold or in high-altitude environments and states recommendations regarding the application of this information to military operational rations. It addresses whether, aside from increased energy demands, cold or high-altitude environments elicit an increased demand or requirement for specific nutrients, and whether performance in cold or high-altitude environments can be enhanced by the provision of increased amounts of specific nutrients.

Heat Stress in Sport and Exercise

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Author :
Publisher : Springer
ISBN 13 : 3319935151
Total Pages : 294 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Heat Stress in Sport and Exercise by : Julien D. Périard

Download or read book Heat Stress in Sport and Exercise written by Julien D. Périard and published by Springer. This book was released on 2019-03-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is designed to provide a flowing description of the physiology of heat stress, the illnesses associated with heat exposure, recommendations on optimising health and performance, and an examination of Olympic sports played in potentially hot environmental conditions. In the first section the book examines how heat stress effects performance by outlining the basics of thermoregulation and how these responses impact on cardiovascular, central nervous system, and skeletal muscle function. It also outlines the pathophysiology and treatment of exertional heat illness, as well as the role of hydration status during exercise in the heat. Thereafter, countermeasures (e.g. cooling and heat acclimation) are covered and an explanation as to how they may aid in decreasing the incidence of heat illness and minimise the impairment in performance is provided. A novel and particular feature of the book is its inclusion of sport-specific chapters in which the influence of heat stress on performance and health is described, as well as strategies and policies adopted by the governing bodies in trying to offset the deleterious role of thermal strain. Given the breadth and scope of the sections, the book will be a reference guide for clinicians, practitioners, coaches, athletes, researchers, and students.

Regulation of Coronary Blood Flow

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Publisher : Springer Science & Business Media
ISBN 13 : 4431683674
Total Pages : 330 pages
Book Rating : 4.4/5 (316 download)

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Book Synopsis Regulation of Coronary Blood Flow by : Michitoshi Inoue

Download or read book Regulation of Coronary Blood Flow written by Michitoshi Inoue and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.

Skeletal Muscle Circulation

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Publisher : Morgan & Claypool Publishers
ISBN 13 : 1615041834
Total Pages : 147 pages
Book Rating : 4.6/5 (15 download)

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Book Synopsis Skeletal Muscle Circulation by : Ronald J. Korthuis

Download or read book Skeletal Muscle Circulation written by Ronald J. Korthuis and published by Morgan & Claypool Publishers. This book was released on 2011 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Regulation of Tissue Oxygenation, Second Edition

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Publisher : Biota Publishing
ISBN 13 : 1615047212
Total Pages : 117 pages
Book Rating : 4.6/5 (15 download)

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Book Synopsis Regulation of Tissue Oxygenation, Second Edition by : Roland N. Pittman

Download or read book Regulation of Tissue Oxygenation, Second Edition written by Roland N. Pittman and published by Biota Publishing. This book was released on 2016-08-18 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.

Control of Cardiac Output

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Publisher : Biota Publishing
ISBN 13 : 1615040226
Total Pages : 110 pages
Book Rating : 4.6/5 (15 download)

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Book Synopsis Control of Cardiac Output by : David Young

Download or read book Control of Cardiac Output written by David Young and published by Biota Publishing. This book was released on 2010-01-01 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although cardiac output is measured as the flow of blood from the left ventricle into the aorta, the system that controls cardiac output includes many other components besides the heart itself. The heart’s rate of output cannot exceed the rate of venous return to it, and therefore, the factors governing venous return are primarily responsible for control of output from the heart. Venous return is affected by its pressure gradient and resistance to flow throughout the vascular system. The pressure gradient for venous return is a function of several factors including the blood volume flowing through the system, the unstressed vascular volume of the circulatory system, its capacitance, mean systemic pressure, and right atrial pressure. Resistance to venous return is the sum of total vascular resistance from the aortic valve to the right atrium. The sympathetic nervous system and vasoactive circulating hormones affect short-term resistance, whereas local tissue blood flow autoregulatory mechanisms are the dominant determinants of long-term resistance to venous return. The strength of contraction of the heart responds to changes in atrial pressure driven by changes in venous return, with small changes in atrial pressure eliciting large changes in strength of contraction, as described by the Frank–Starling mechanism. In addition, the autonomic nervous system input to the heart alters myocardial pumping ability in response to cardiovascular challenges. The function of the cardiovascular system is strongly affected by the operation of the renal sodium excretion–body fluid volume–arterial pressure negative feedback system that maintains arterial blood pressure at a controlled value over long periods. The intent of this volume is to integrate the basic knowledge of these cardiovascular system components into an understanding of cardiac output regulation. Table of Contents: Introduction / Venous Return / Cardiac Function / Integrated Analysis of Cardiac Output Control / Analysis of Cardiac Output Regulation by Computer Simulation / Analysis of Cardiac Output Control in Response to Challenges / Conclusion / References / Author Biography

Kinanthropometry II

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (929 download)

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Book Synopsis Kinanthropometry II by : Michel Ostyn

Download or read book Kinanthropometry II written by Michel Ostyn and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

ACSM's Advanced Exercise Physiology

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Publisher : Lippincott Williams & Wilkins
ISBN 13 : 9780781747264
Total Pages : 730 pages
Book Rating : 4.7/5 (472 download)

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Book Synopsis ACSM's Advanced Exercise Physiology by : Charles M. Tipton

Download or read book ACSM's Advanced Exercise Physiology written by Charles M. Tipton and published by Lippincott Williams & Wilkins. This book was released on 2006 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by international experts in physiology, exercise physiology, and research, ACSM's Advanced Exercise Physiology gives students an advanced level of understanding of exercise physiology. It emphasizes the acute and chronic effects of exercise on various physiological systems in adults and the integrative nature of these physiological responses. Chapters detail how different body systems respond to exercise. Systems include nervous, skeletal, muscular, respiratory, cardiovascular, gastrointestinal, metabolic, endocrine, immune, renal, and hematopoietic systems. Additional chapters explain how these responses are altered by heat, cold, hypoxia, microgravity, bed rest, and hyperbaria. Milestones of Discovery pages describe classic or memorable experiments in exercise physiology.

Exertional Heat Illnesses

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Publisher : Human Kinetics
ISBN 13 : 9780736037716
Total Pages : 300 pages
Book Rating : 4.0/5 (377 download)

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Book Synopsis Exertional Heat Illnesses by : Lawrence E. Armstrong

Download or read book Exertional Heat Illnesses written by Lawrence E. Armstrong and published by Human Kinetics. This book was released on 2003 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only text to focus exclusively on heat-related illnesses. Full of practical advice for professionals in a variety of medical, academic, & commercial settings. Learn how to identify, treat & prevent exertional heat illnesses & ensure your sporting events are safe.

Cardiovascular Response to Exercise

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Publisher : Wiley-Blackwell
ISBN 13 : 9780879935597
Total Pages : 446 pages
Book Rating : 4.9/5 (355 download)

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Book Synopsis Cardiovascular Response to Exercise by : Gerald F. Fletcher

Download or read book Cardiovascular Response to Exercise written by Gerald F. Fletcher and published by Wiley-Blackwell. This book was released on 1994 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of this popular and successful text has been fully revised and updated to take account of recent advances in the field, particularly in the physiology and pathophysiology of many disease processes. The text retains the original format of relevant physiology, test selection and test interpretation by case example. Essential aspects of paediatric chemical pathology, inborn errors of metabolism, reproductive endocrinology, tumours and toxicology are now included. As chemical pathology is receiving specific attention in medical courses, this text has been adapted to present this information in an understandable form, making it suitable for medical undergraduates and for medical and science postgraduates studying for exams of Colleges of Pathology and professional associations."

Temperature Regulation in Humans and Other Mammals

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Publisher : Springer Science & Business Media
ISBN 13 : 3642594611
Total Pages : 202 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Temperature Regulation in Humans and Other Mammals by : Claus Jessen

Download or read book Temperature Regulation in Humans and Other Mammals written by Claus Jessen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do mammals manage to maintain their body temperature within the same narrow range in environments as different as polar regions and hot deserts? This advanced text describes the morphological features and physiological mechanisms by which humans and other mammals maintain their body temperature within a narrow range despite large variations in climatic conditions and internal heat production. Its 19 chapters deal with the physics of heat exchange with the environment, and the autonomic and behavioural mechanisms available to control the loss and production of heat. The neuronal basis of temperature regulation and current concepts of the central nervous interface between temperature signals generated in the body and control mechanisms are examined in detail. This book is of invaluable help for undergraduates, postgraduates, teachers, physicians and scientists.

Committee on Military Nutrition Research

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Publisher : National Academies Press
ISBN 13 : 0309172764
Total Pages : 303 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Committee on Military Nutrition Research by : Institute of Medicine

Download or read book Committee on Military Nutrition Research written by Institute of Medicine and published by National Academies Press. This book was released on 1999-08-04 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: The activities of the Food and Nutrition Board's Committee on Military Nutrition Research (CMNR, the committee) have been supported since 1994 by grant DAMD17-94-J-4046 from the U.S. Army Medical Research and Materiel Command (USAMRMC). This report fulfills the final reporting requirement of the grant, and presents a summary of activities for the grant period from December 1, 1994 through May 31, 1999. During this grant period, the CMNR has met from three to six times each year in response to issues that are brought to the committee through the Military Nutrition and Biochemistry Division of the U.S. Army Research Institute of Environmental Medicine at Natick, Massachusetts, and the Military Operational Medicine Program of USAMRMC at Fort Detrick, Maryland. The CMNR has submitted five workshop reports (plus two preliminary reports), including one that is a joint project with the Subcommittee on Body Composition, Nutrition, and Health of Military Women; three letter reports, and one brief report, all with recommendations, to the Commander, U.S. Army Medical Research and Materiel Command, since September 1995 and has a brief report currently in preparation. These reports are summarized in the following activity report with synopses of additional topics for which reports were deferred pending completion of military research in progress. This activity report includes as appendixes the conclusions and recommendations from the nine reports and has been prepared in a fashion to allow rapid access to committee recommendations on the topics covered over the time period.

Basic Physiology for Anaesthetists

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Publisher : Cambridge University Press
ISBN 13 : 1108463991
Total Pages : 469 pages
Book Rating : 4.1/5 (84 download)

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Book Synopsis Basic Physiology for Anaesthetists by : David Chambers

Download or read book Basic Physiology for Anaesthetists written by David Chambers and published by Cambridge University Press. This book was released on 2019-07-25 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Easily understood, up-to-date and clinically relevant, this book provides junior anaesthetists with an essential physiology resource.

International Standars for Anthropometric Assessment, 20019

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Publisher :
ISBN 13 : 9788492986156
Total Pages : 154 pages
Book Rating : 4.9/5 (861 download)

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Book Synopsis International Standars for Anthropometric Assessment, 20019 by : Francisco Esparza Ros

Download or read book International Standars for Anthropometric Assessment, 20019 written by Francisco Esparza Ros and published by . This book was released on 2019 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Human Thermal Environments

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Publisher : CRC Press
ISBN 13 : 1420025244
Total Pages : 560 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Human Thermal Environments by : Ken Parsons

Download or read book Human Thermal Environments written by Ken Parsons and published by CRC Press. This book was released on 2007-03-22 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our responses to our thermal environment have a considerable effect on our performance and behavior, not least in the realm of work. There has been considerable scientific investigation of these responses and formal methods have been developed for environmental evaluation and design. In recent years these have been developed to the extent that detailed national and international standards of practice have now become feasible. This new edition of Ken Parson's definitive text brings us back up to date. He covers hot, moderate and cold environments, and defines these in terms of six basic parameters: air temperature, radiate temperature, humidity, air velocity, clothing worn, and the person's activity. There is a focus on the principles and practice of human response, which incorporates psychology, physiology and environmental physics with applied ergonomics. Water requirements, computer modeling and computer-aided design are brought in, as are current standards. Special populations, such as the aged or disabled and specialist environments such as those found in vehicles are also considered. This book continues to be the standard text for the design of environments for humans to live and work safely, comfortably and effectively, and for the design of materials which help the same people cope with their environments.

Diving Physiology of Marine Mammals and Seabirds

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Publisher : Cambridge University Press
ISBN 13 : 0521765552
Total Pages : 351 pages
Book Rating : 4.5/5 (217 download)

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Book Synopsis Diving Physiology of Marine Mammals and Seabirds by : Paul J. Ponganis

Download or read book Diving Physiology of Marine Mammals and Seabirds written by Paul J. Ponganis and published by Cambridge University Press. This book was released on 2015-11-26 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date synthesis of comparative diving physiology research, illustrating the features of dive performance and its biomedical and ecological relevance.

Anatomy and Physiology

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Publisher :
ISBN 13 : 9781947172807
Total Pages : 0 pages
Book Rating : 4.1/5 (728 download)

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Book Synopsis Anatomy and Physiology by : J. Gordon Betts

Download or read book Anatomy and Physiology written by J. Gordon Betts and published by . This book was released on 2013-04-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: