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Author : James Arthur Lokken
Publisher :
ISBN 13 :
Total Pages : 182 pages
Book Rating : 4.:/5 (39 download)
Download or read book Influence of Skin Temperature and Exercise Duration on Fat Utilization written by James Arthur Lokken and published by . This book was released on 1989 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 0309175593
Total Pages : 584 pages
Book Rating : 4.3/5 (91 download)
Download or read book Nutritional Needs in Cold and High-Altitude Environments written by Institute of Medicine and published by National Academies Press. This book was released on 1996-05-15 with total page 584 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.
Author : Xiao Fen Lin
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (973 download)
Download or read book Effects and Mechanisms of Clothing Temperature on Body Fat and Muscle Distributions written by Xiao Fen Lin and published by . This book was released on 2016 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the phase 2, influence of clothing on the body temperature distribution by clothing design and the usage of functional fabrics were examined. A parallel, random wear trial was conducted first to investigate the body temperature variation under different activity conditions when wearing designed pants by the usage of functional fabrics with infrared radiation properties. There is no significant difference in core temperature, but the body means skin temperature has drawn a significant higher in pants of functional fabrics with infrared radiation properties. Additionally, functional bra was developed by the usage of fabrics with dynamic moisture transferring properties to further explore its influence on the regional body temperature of the particular adipose tissue model, female breast, which is mostly made up of a collection of fat. Another parallel, random wear trial study revealed that local breast skin temperatures of bra made of fabrics with dynamic moisture transfer properties are significantly lower than bras without these dynamic moisture transfer properties in the running condition, whereas the body mean skin temperature were revealed to undergo greater decreasing effects in bras made of fabrics with dynamic moisture transfer properties than those without the dynamic moisture transfer properties. These findings proved the hypotheses that clothing could be used as an effective means to regulate mean skin temperature and also regional skin surface temperature could be controlled by clothing design and usage of functional fabrics. In the phase 3, the influences of clothing on fat and muscle by clothing design and usage of functional fabrics was examined by conducting field wear trials. Functional pants used in the phase two were optimized to increase the ability for regulating skin surface by designing and welding with heat press sticker. A parallel, randomly crossover designed wear trial study was carried out to explore whether clothing has an influence on body fat, muscle and also lipid profiles under free living conditions. Significant decrease of the body mass index and waist-hip ratio were found when wearing functional clothing to relatively elevate the body surface temperature for four weeks, but indexes, including body fat mass, visceral fat area, truck fat mass, as well as skeletal muscle mass were not being significantly affected. It also found out that there are no significant differences in blood lipid profiles, such as triacylglycerol, total cholesterol, HDL cholesterol, LDL cholesterol and total lipid during the experiment period. In summary, the effects and underlying mechanisms of clothing temperature on fat and muscle have been explored. The results obtained cell model experiments demonstrated that temperature has significant influence on the metabolisms of fat and muscle cells, particularly the size of lipid droplets in fat cells. The results from human model laboratory wear trials demonstrated that clothing with different designs and use of different fabrics can be used as an effective means to regulate local skin surface temperature. The results from human model field wear trial studies showed that clothing could have significant influence on body mass index (BMI) and waist-hip ratio (WHR) on human subjects. These findings suggest that clothing design and using functional fabrics had potential to be utilized as novel interventions for fat and muscle health management.
Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 0309172764
Total Pages : 303 pages
Book Rating : 4.3/5 (91 download)
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.
Author : Jose Ignacio Priego Quesada
Publisher : Springer
ISBN 13 : 3319474103
Total Pages : 339 pages
Book Rating : 4.3/5 (194 download)
Download or read book Application of Infrared Thermography in Sports Science written by Jose Ignacio Priego Quesada and published by Springer. This book was released on 2016-12-29 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the application of infrared thermography in sports, examining the main benefits of this non-invasive, non-radiating and low-cost technique. Aspects covered include the detection of injuries in sports medicine, the assessment of sports performance due to the existing link between physical fitness and thermoregulation and the analysis of heat transfer for sports garments and sports equipment. Although infrared thermography is broadly considered to be a fast and easy-to-use tool, the ability to deliver accurate and repeatable measurements is an important consideration. Furthermore, it is important to be familiar with the latest sports studies published on this technique to understand its potential and limitations. Accordingly, this book establishes a vital link between laboratory tests and the sports field.
Author : Ronald J. Korthuis
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1615041834
Total Pages : 147 pages
Book Rating : 4.6/5 (15 download)
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
Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 0309089964
Total Pages : 277 pages
Book Rating : 4.3/5 (9 download)
Download or read book Weight Management written by Institute of Medicine and published by National Academies Press. This book was released on 2003-12-01 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of fitness and body composition standards in the U.S. Armed Forces has always been to select individuals best suited to the physical demands of military service, based on the assumption that proper body weight and composition supports good health, physical fitness, and appropriate military appearance. The current epidemic of overweight and obesity in the United States affects the military services. The pool of available recruits is reduced because of failure to meet body composition standards for entry into the services and a high percentage of individuals exceeding military weight-for-height standards at the time of entry into the service leave the military before completing their term of enlistment. To aid in developing strategies for prevention and remediation of overweight in military personnel, the U.S. Army Medical Research and Materiel Command requested the Committee on Military Nutrition Research to review the scientific evidence for: factors that influence body weight, optimal components of a weight loss and weight maintenance program, and the role of gender, age, and ethnicity in weight management.
Author : Asker E. Jeukendrup
Publisher : Human Kinetics Publishers
ISBN 13 : 9780736079624
Total Pages : 475 pages
Book Rating : 4.0/5 (796 download)
Download or read book Sport Nutrition written by Asker E. Jeukendrup and published by Human Kinetics Publishers. This book was released on 2009-12-31 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of "Sport Nutrition: An Introduction to Energy Production and Performance" presents the principles, background, and rationale for current nutrition guidelines specifically for athletes. Using a physiological basis, this text provides an in-depth look at the science behind sport nutrition. Students will come away with a comprehensive understanding of nutrition as it relates to sport and the influence of nutrition on exercise performance, training, and recovery. The chapters and the material within each chapter are sequenced in a logical order that will help instructors deliver a better course and spend less time in preparing lectures and tutorials. Instructors will also enjoy the completely new ancillaries with this edition, including an online instructor guide, test package, PowerPoint presentation package, and image bank. This text contains updated and expanded information to keep students current on the latest findings in sport nutrition: - A new chapter on training adaptations, including effects of nutrition on overtraining - New information on weight management and body composition for athletes - New research on carbohydrate and new recommendations for carbohydrate intake during training - An expanded discussion on the role of protein in strength and endurance exercise training - The latest information on exercise, nutrition, and immune function The new content complements the strong foundational information that the authors provided in the previous edition, including fuel sources for muscle and exercise metabolism, energy requirements for various sports, and a complete grounding in the macronutrients (carbohydrate, fat, and protein) and the micronutrients (vitamins and minerals). With more than 200 illustrations, new highlight boxes, and tables and sidebars throughout the text, students will be able to more easily grasp the scientific concepts presented in this text. Each chapter also includes learning objectives, key terms, and key points to help readers retain the information. The text presents not only nutrition principles but also the exercise biochemistry involved and the energy needs of athletes. Readers will better understand how supplements may be used in an athlete's diet, and they will learn how to separate fact from fallacy regarding the claims of the numerous nutritional supplements available today. More than a simple prescription of recommendations, this second edition of" Sport Nutrition" features a unique presentation that facilitates readers' understanding of the science supporting the nutrition recommendations. As a result, students will be prepared for advanced study and future careers, and professionals will gain the knowledge and confidence to provide sound advice to athletes.
Author : Virginia E. Brown
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (211 download)
Download or read book Effects of Caffeine Ingestion on Free Fatty Acid Mobilization and Skin Temperature in Exercising Endurance Athletes written by Virginia E. Brown and published by . This book was released on 1989 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joshua Floyd Lee
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (694 download)
Download or read book Influences of Skin and Core Temperature on Cardiovascular Responses During Exercise written by Joshua Floyd Lee and published by . This book was released on 2010 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cardiovascular effects of whole body heat stress during exercise are well established. However the independent contribution of elevated skin temperature (Tsk) or core temperature (Tc) on these responses remains unclear. The purpose of this study was to determine how increases in Tsk and Tc alone and in combination, impact cardiovascular responses during moderate intensity exercise. To accomplish this goal, eight healthy, recreationally active males were immersed to the neck in a cold (14 - 17°C) or hot (40 - 42.5°C) water bath for 20 to 25 min to alter Tc immediately prior to exercise with either cool Tsk (i.e. fans) or warm Tsk (i.e. heaters). Conditions during exercise were cool skin and cool core (CC), warm skin and cool core (WC), cool skin and warm core (CW), and warm skin and warm core (WW), and were conducted in a randomized crossover design. When data was combined (n=16), warm core conditions (CW and WW) were associated with significantly higher average heart rate (HR) and lower stroke volume (SV) during exercise compared to cool core conditions (CC and WC); 168.1 ± 3.2 vs. 152.2 ± 4.0 beats/min and 139.2 ± 7.3 vs. 147.7 ± 9.4 mL/beat, respectively. The approximate 9 mL/beat decline in SV and 16 beat/min increase in HR in warm core conditions tended to increase cardiac output (Q), 23.2 ± 0.6 vs. 22.2 ± 0.7 L/min, P=0.078. Similarly, warm Tsk conditions (WC and WW) were associated with significantly higher average HR and lower SV during exercise compared to cool Tsk conditions (CC and CW); 165.2 ± 3.3 vs. 155.1 ± 3.4 beats/min and 140.8 ± 7.8 vs. 146.0 ± 8.7 mL/beat, respectively. Additionally, there was also a trend for Q to be elevated with warm skin (23.0 ± 0.6 vs. 22.4 ± 0.6, P=0.075). Although combined data indicated that warm Tsk conditions significantly lowered average SV by ~6 mL/beat, there was no reduction in SV during exercise by warm Tsk, when Tes was cool (i.e. 37.0°C), as evidenced by identical values for SV in CC and WC, 147.7 ± 9.8 vs. 147.7 ± 9.0 mL/beat, respectively. In contrast, SV was significantly lower in WW compared with CW, 133.9 ± 7.0 vs. 144.4 ± 7.8 mL/beat, respectively. Therefore, the major reduction in SV by warm Tsk occurred during WW, when Tes was elevated (i.e.38.0°C). Analyzing data independently for precooling and preheating conditions revealed that warm Tsk was associated with greater HR drift from 5 to 20 min of exercise, compared to cool Tsk, when esophageal temperature (Tes) was both cool or warm (23.9 ± 2.2 vs. 17.5 ± 2.3 and 12.3 ± 1.3 vs. 4.6 ± 1.7 beats/min, respectively). These observations demonstrate that both Tes and Tsk can directly influence cardiovascular responses during exercise, as indicated by elevations in HR during exercise with warm Tsk, with both warm and cool Tes. However SV is not compromised by warm Tsk if Tes is below 37.5°C. Furthermore, when both Tes and Tsk are elevated simultaneously, cardiovascular strain (i.e. increased HR and reduced SV) is much greater than when either is elevated alone. This is demonstrated by the finding that average HR was 175.8 ± 3.2 beats/min in WW, compared to 149.8 ± 4.0, 154.7 ± 4.1, and 160.3 ± 3.5 beats/min, in CC, WC, and CW, respectively, and the fact that SV was lowest during exercise in WW. In conclusion, individuals exercising in the heat should take measures to keep skin cool, especially when Tes is 39°C or greater to attenuate the cardiovascular strain that occurs with warm Tsk, when Tes is elevated.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309039940
Total Pages : 765 pages
Book Rating : 4.3/5 (9 download)
Download or read book Diet and Health written by National Research Council and published by National Academies Press. This book was released on 1989-01-01 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. It proposes dietary recommendations for reducing the risk of the major diseases and causes of death today: atherosclerotic cardiovascular diseases (including heart attack and stroke), cancer, high blood pressure, obesity, osteoporosis, diabetes mellitus, liver disease, and dental caries.
Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 030905088X
Total Pages : 560 pages
Book Rating : 4.3/5 (9 download)
Download or read book Food Components to Enhance Performance written by Institute of Medicine and published by National Academies Press. This book was released on 1994-02-01 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: The physiological or psychological stresses that employees bring to their workplace affect not only their own performance but that of their co-workers and others. These stresses are often compounded by those of the job itself. Medical personnel, firefighters, police, and military personnel in combat settingsâ€"among othersâ€"experience highly unpredictable timing and types of stressors. This book reviews and comments on the performance-enhancing potential of specific food components. It reflects the views of military and non-military scientists from such fields as neuroscience, nutrition, physiology, various medical specialties, and performance psychology on the most up-to-date research available on physical and mental performance enhancement in stressful conditions. Although placed within the context of military tasks, the volume will have wide-reaching implications for individuals in any job setting.
Author : Julien D. Périard
Publisher : Springer
ISBN 13 : 3319935151
Total Pages : 296 pages
Book Rating : 4.3/5 (199 download)
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 296 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.
Author : Sheri R. Colberg
Publisher : American Diabetes Association
ISBN 13 : 158040507X
Total Pages : 554 pages
Book Rating : 4.5/5 (84 download)
Download or read book Exercise and Diabetes written by Sheri R. Colberg and published by American Diabetes Association. This book was released on 2013-05-30 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical movement has a positive effect on physical fitness, morbidity, and mortality in individuals with diabetes. Although exercise has long been considered a cornerstone of diabetes management, many health care providers fail to prescribe it. In addition, many fitness professionals may be unaware of the complexities of including physical activity in the management of diabetes. Giving patients or clients a full exercise prescription that take other chronic conditions commonly accompanying diabetes into account may be too time-consuming for or beyond the expertise of many health care and fitness professionals. The purpose of this book is to cover the recommended types and quantities of physical activities that can and should be undertaken by all individuals with any type of diabetes, along with precautions related to medication use and diabetes-related health complications. Medications used to control diabetes should augment lifestyle improvements like increased daily physical activity rather than replace them. Up until now, professional books with exercise information and prescriptions were not timely or interactive enough to easily provide busy professionals with access to the latest recommendations for each unique patient. However, simply instructing patients to “exercise more” is frequently not motivating or informative enough to get them regularly or safely active. This book is changing all that with its up-to-date and easy-to-prescribe exercise and physical activity recommendations and relevant case studies. Read and learn to quickly prescribe effective and appropriate exercise to everyone.
Author : Transportation Research Board
Publisher : Transportation Research Board
ISBN 13 : 0309094984
Total Pages : 269 pages
Book Rating : 4.3/5 (9 download)
Download or read book Does the Built Environment Influence Physical Activity? written by Transportation Research Board and published by Transportation Research Board. This book was released on 2005-01-11 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB Special Report 282: Does the Built Environment Influence Physical Activity? Examining the Evidence reviews the broad trends affecting the relationships among physical activity, health, transportation, and land use; summarizes what is known about these relationships, including the strength and magnitude of any causal connections; examines implications for policy; and recommends priorities for future research.
Author : Lawrence E. Armstrong
Publisher : Human Kinetics
ISBN 13 : 9780736037716
Total Pages : 300 pages
Book Rating : 4.0/5 (377 download)
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.
Author : Clark M. Blatteis
Publisher : World Scientific
ISBN 13 : 9789810231729
Total Pages : 316 pages
Book Rating : 4.2/5 (317 download)
Download or read book Physiology and Pathophysiology of Temperature Regulation written by Clark M. Blatteis and published by World Scientific. This book was released on 1998 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a user-friendly monograph designed for medical students as well as graduate students and postdoctoral trainees in medicine and other health-related sciences who need a comprehensive overview of thermoregulation. It presents the bases of the modern concepts in thermal physiology and pathophysiology, bringing together the disciplines encompassed by this highly integrative field ? physiology, anatomy, biophysics, molecular and cellular biology, pharmacology, neuroscience, pathology, medicine, and others ? into a clear and concise form that can be read comfortably in a relatively short time. This text was conceived by the Commission on Thermal Physiology of the International Union of Physiological Sciences in response to its concern over the inadequate and outdated coverage of this topic in traditional textbooks. The membership of this Commission comprises international experts in each of the subfields of thermal physiology, with extensive research and teaching experience in their respective specialties. They are the authors of the chapters of this indispendable textbook.
