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Book High Intensity Exercise in Hypoxia Beneficial Aspects and Potential Drawbacks

Download or read book High Intensity Exercise in Hypoxia Beneficial Aspects and Potential Drawbacks written by Olivier Girard and published by Frontiers Media SA. This book was released on 2018-01-25 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, ‘traditional’ moderate-intensity continuous training (60-75% peak heart rate) was the type of physical activity most frequently recommended for both athletes and clinical populations (cf. American College of Sports Medicine guidelines). However, growing evidence indicates that high-intensity interval training (80-100% peak heart rate) could actually be associated with larger cardiorespiratory fitness and metabolic function benefits and, thereby, physical performance gains for athletes. Similarly, recent data in obese and hypertensive individuals indicate that various mechanisms – further improvement in endothelial function, reductions in sympathetic neural activity, or in arterial stiffness – might be involved in the larger cardiovascular protective effects associated with training at high exercise intensities. Concerning hypoxic training, similar trends have been observed from ‘traditional’ prolonged altitude sojourns (‘Live High Train High’ or ‘Live High Train Low’), which result in increased hemoglobin mass and blood carrying capacity. Recent innovative ‘Live Low Train High’ methods (‘Resistance Training in Hypoxia’ or ‘Repeated Sprint Training in Hypoxia’) have resulted in peripheral adaptations, such as hypertrophy or delay in muscle fatigue. Other interventions inducing peripheral hypoxia, such as vascular occlusion during endurance/resistance training or remote ischemic preconditioning (i.e. succession of ischemia/reperfusion episodes), have been proposed as methods for improving subsequent exercise performance or altitude tolerance (e.g. reduced severity of acute-mountain sickness symptoms). Postulated mechanisms behind these metabolic, neuro-humoral, hemodynamics, and systemic adaptations include stimulation of nitric oxide synthase, increase in anti-oxidant enzymes, and down-regulation of pro-inflammatory cytokines, although the amount of evidence is not yet significant enough. Improved O2 delivery/utilization conferred by hypoxic training interventions might also be effective in preventing and treating cardiovascular diseases, as well as contributing to improve exercise tolerance and health status of patients. For example, in obese subjects, combining exercise with hypoxic exposure enhances the negative energy balance, which further reduces weight and improves cardio-metabolic health. In hypertensive patients, the larger lowering of blood pressure through the endothelial nitric oxide synthase pathway and the associated compensatory vasodilation is taken to reflect the superiority of exercising in hypoxia compared to normoxia. A hypoxic stimulus, in addition to exercise at high vs. moderate intensity, has the potential to further ameliorate various aspects of the vascular function, as observed in healthy populations. This may have clinical implications for the reduction of cardiovascular risks. Key open questions are therefore of interest for patients suffering from chronic vascular or cellular hypoxia (e.g. work-rest or ischemia/reperfusion intermittent pattern; exercise intensity; hypoxic severity and exposure duration; type of hypoxia (normobaric vs. hypobaric); health risks; magnitude and maintenance of the benefits). Outside any potential beneficial effects of exercising in O2-deprived environments, there may also be long-term adverse consequences of chronic intermittent severe hypoxia. Sleep apnea syndrome, for instance, leads to oxidative stress and the production of reactive oxygen species, and ultimately systemic inflammation. Postulated pathophysiological changes associated with intermittent hypoxic exposure include alteration in baroreflex activity, increase in pulmonary arterial pressure and hematocrit, changes in heart structure and function, and an alteration in endothelial-dependent vasodilation in cerebral and muscular arteries. There is a need to explore the combination of exercising in hypoxia and association of hypertension, developmental defects, neuro-pathological and neuro-cognitive deficits, enhanced susceptibility to oxidative injury, and possibly increased myocardial and cerebral infarction in individuals sensitive to hypoxic stress. The aim of this Research Topic is to shed more light on the transcriptional, vascular, hemodynamics, neuro-humoral, and systemic consequences of training at high intensities under various hypoxic conditions.

Book Effects of Exercise on Hypertension

Download or read book Effects of Exercise on Hypertension written by Linda S. Pescatello and published by Springer. This book was released on 2015-07-08 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the first primer on the effects of exercise on human hypertension, Effects of Exercise on Hypertension: From Cells to Physiological Systems provides the state-of-the-art effects of exercise on the many possible mechanisms underlying essential hypertension in humans. The book contains chapters by distinguished experts on the effects of exercise on physiological systems known to be involved in hypertension development and maintenance as well as less well known aspects of hypertension such as 24-hour ambulatory blood pressure profile and oxidative stress. An emerging area, the effects of resistance exercise training on blood pressure is also covered. A unique aspect of the book is that it covers the effects of exercise mimetics on vascular cell adaptations in order to begin to elucidate some of the cellular mechanisms that may underlie blood pressure reductions with exercise training. Lastly, the book will end with a chapter on the interactive effects of genes and exercise on blood pressure. Chapters are grouped by physiological system or mechanism. The text begins with two overview chapters; one on the general effects of aerobic exercise training and the second on the general effects of resistance exercise training on blood pressure. Each chapter begins with a bulleted list of key points. Effects of Exercise on Hypertension: From Cells to Physiological Systems will be of great value to professional individuals in cardiovascular medicine, the cardiovascular sciences, allied health care professionals, and medical and graduate students in the cardiovascular sciences and medicine.

Book Cardiovascular Adjustments and Adaptations to Exercise From the Athlete to the Patient

Download or read book Cardiovascular Adjustments and Adaptations to Exercise From the Athlete to the Patient written by Antonio Crisafulli and published by Frontiers Media SA. This book was released on 2020-04-02 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Effects of High Intensity Interval Training on Resting Mean Arterial Pressure and C reactive Protein Content in Prehypertensive Subjects

Download or read book The Effects of High Intensity Interval Training on Resting Mean Arterial Pressure and C reactive Protein Content in Prehypertensive Subjects written by Benjamin C. Skutnik and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Subjects with prehypertension are at risk for developing hypertension (HTN). Hypertension is associated with low-grade systemic inflammation (LGSI). Aerobic exercise training (ET) is a proven means to reduce both blood pressure and LGSI in healthy and diseased subjects. Recently, high intensity interval training (HIIT) has been show to elicit similar cardiovascular and metabolic adaptations as ET in healthy and at-risk populations in a more time efficient manner. Therefore, we hypothesized that HIIT would elicit greater reductions in blood pressure and LGSI than ET. Twelve pre-hypertensive subjects (systolic blood pressure 127.0 ± 8.5 mmHg; diastolic blood pressure 86.2 ± 4.1 mmHg) were randomly assigned to an ET group (n=5) and a HIIT group (n=7). All subjects performed an incremental test to exhaustion (VO2max) on a cycle ergometer prior to, after 4 weeks, and after 8 weeks of training. Resting heart rate and blood pressure were measured prior to and three times a week during training. LGSI was measured via high-sensitivity C-reactive protein (hs-CRP) prior to, after 4 weeks and after 8 weeks of training. ET subjects performed an eight week exercise training program at 40% VO2 reserve determined from the VOVO2[subscript]max test, while HIIT subjects performed exercise at 60% peak power determined from the VO2[subscript]max test. ET group trained four days/week while HIIT trained three days/week. ET exercised for 30 minutes continuously at a constant workload and cadence of 60 rpm while HIIT performed a protocol on a 1:1 work-to-rest ratio at a constant workload and cadence of 100 rpm. Both groups showed similar (p0.05) decreases in mean arterial (ET = -7.3%, HIIT = -4.5%), systolic (ET = -6.6%, HIIT = -8.8%), and diastolic (ET= -9.7, HIIT= -8.2%) blood pressure. HIIT decreased in LGSI ( -33.7%) while ET did not change LGSI (p0.05). VOVO2[subscript]max increased ~25% with both HIIT and ET with no differences (p>0.05) between groups. These data suggest both HIIT and ET similarly decreased resting blood pressure and increased VO2max while HIIT was effective in decreasing LGSI in subjects who were pre-hypertensive.

Book Serious Cycling

Download or read book Serious Cycling written by Edmund R. Burke and published by Human Kinetics. This book was released on 2002-02-12 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ride faster and more efficiently with Serious Cycling. Exercise scientists have unearthed a wealth of information that cyclists can use to improve their performance. However, most cyclists have never had access to this great body of knowledge. Now you do. Serious Cycling bridges the gap between scientific observation and cycling performance. It takes the latest scientific data on physiology, biomechanics, nutrition, injury prevention and recovery, and training, and translates it into practical applications that will have an immediate impact on your personal training program. Written by one of cycling's top experts, this book will help you build endurance, increase lactate threshold, and enhance cycling strength and power. Two-time U.S. Olympic team staff member Ed Burke has combined physiological training principles and real-world experiences to make Serious Cycling the reference that no elite cyclist should be without. The training methods and techniques he presents are what the top cyclists use. You'll learn how to - use power meters and heart rate monitors to gauge what is happening in your body while you work out; - prevent injuries and illness, even during periods of hard training and racing; - use proper nutrition and cutting-edge supplementation strategies to train harder and recover more effectively; - make your body and your bike work with—not against—each other, - get the best, most current information on proper positioning and cycling biomechanics; and - apply effective tactics and race strategies to ensure your success in time trials, road races, and criteriums. Whether you're a competitor, a club member, or a weekend century rider, Serious Cycling will give you the know-how—and the means to apply it—so that you can reach your full potential.

Book The Handbook of Sports Medicine and Science

Download or read book The Handbook of Sports Medicine and Science written by Per A. F. H. Renström and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This addition to the Handbook series will allow the tennis coach, athlete, and medical professional responsible for their care to improve technique, training and performance, and to reduce the risk of injury. When injury does occur, Tennis will aid quick accurate diagnosis and treatment, and effective rehabilitation so that the tennis player can return to peak performance with the minimum of fuss.

Book Science and Application of High Intensity Interval Training

Download or read book Science and Application of High Intensity Interval Training written by Laursen, Paul and published by Human Kinetics. This book was released on 2019 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: The popularity of high-intensity interval training (HIIT), which consists primarily of repeated bursts of high-intensity exercise, continues to soar because its effectiveness and efficiency have been proven in use by both elite athletes and general fitness enthusiasts. Surprisingly, few resources have attempted to explain both the science behind the HIIT movement and its sport-specific application to athlete training. That’s why Science and Application of High-Intensity Interval Training is a must-have resource for sport coaches, strength and conditioning professionals, personal trainers, and exercise physiologists, as well as for researchers and sport scientists who study high-intensity interval training.

Book Training Intensity Volume and Recovery Distribution Among Elite and Recreational Endurance Athletes

Download or read book Training Intensity Volume and Recovery Distribution Among Elite and Recreational Endurance Athletes written by Thomas L. Stöggl and published by Frontiers Media SA. This book was released on 2019-09-20 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Physiology of Sport and Exercise

Download or read book Physiology of Sport and Exercise written by W. Larry Kenney and published by Human Kinetics. This book was released on 2019-04-25 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physiology of Sport and Exercise, Seventh Edition With Web Study Guide, continues its legacy as a top physiology textbook and favorite of instructors and students alike. Combining research with extensive visual aids, this resource offers a simple way for students to develop an understanding of the body’s abilities to perform various types and intensities of exercise and sport, to adapt to stressful situations, and to improve its physiological capacities. Written by a team of distinguished researchers, all past presidents of the American College of Sports Medicine, this seventh edition has been updated based on the most recent position stands, standards, and guidelines in the field of sport and exercise physiology. Throughout the text, updated photos join with the superb illustrations and medical artwork to clarify difficult concepts and illustrate how the body performs. Digital components found in the web study guide now include 26 animations that offer a dynamic way to experience physiological concepts, and 66 audio clips that provide explanations of complex physiological processes to aid students’ understanding of important illustrations in the text. Leaders in the field discuss recent developments and real-world applications in 27 video clips to help students connect theoretical and practical concepts. Corresponding icons throughout the text notify students when digital elements are available to complement the materials. In addition to the expanded digital components, Physiology of Sport and Exercise, Seventh Edition, features new and updated content based on the latest research in the field: Additional information on overtraining and exercise addiction Expanded content on fatigue and mobility in aging New sections on epigenetics, bioinformatics, and neuromuscular function New information on exercise genomics New Research Perspectives emphasizing emerging findings in the field, and a new Research Perspectives Finder to help students locate key content quickly Ease of reading has been the standout feature of this popular text. The seventh edition continues to offer comprehensive coverage of the complex relationship between human physiology and exercise while maintaining an engaging and student-friendly tone. Unique learning features paired with an accessible layout, including chapter-opening outlines and review boxes throughout each chapter, will help students focus on the major concepts addressed. Study questions and a list of key terms at the end of the chapter increase students’ opportunities for recall and self-testing. A comprehensive glossary and lists of common abbreviations and conversions provide easy reference for students as they complete labs and assignments. To foster an enriched learning experience, both students and instructors can take advantage of the web-based ancillaries that accompany the text. In addition to animations, videos, and audio clips, the web study guide includes comprehension quizzes to provide immediate feedback to students on their knowledge retention as well as end-of-unit mastery checks that students can use for evaluating their progress. Instructors are provided with access to an instructor guide, test package, ready-to-use chapter quizzes, and a presentation package plus image bank. The presentation package includes PowerPoint slides with key points and content, which can be modified to suit a variety of class structures. An image bank features all of the graphics, artwork, and content photos from the text for easy insertion into tests, quizzes, handouts, and other course materials. Digital extras—composed of the animations, videos, and audio clips that students find in the web study guide—bolster comprehension of challenging concepts. Physiology of Sport and Exercise has been a pivotal textbook of the engaging field of exercise physiology. Through dynamic and interactive learning activities, easy-to-follow layouts, and research-oriented content enriched with visual supplements, students and instructors will find this an invaluable resource for their continued education.

Book Designing Resistance Training Programs

Download or read book Designing Resistance Training Programs written by Steven J. Fleck and published by Human Kinetics. This book was released on 2014-03-17 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designing Resistance Training Programs, Fourth Edition, is a guide to developing individualized training programs for both serious athletes and fitness enthusiasts. In this updated and expanded fourth edition, two of the world’s leading experts on strength training explore how to design scientifically based resistance training programs, modify and adapt programs to meet the needs of special populations, and apply the elements of program design in the real world. Fleck and Kraemer provide readers with a thorough understanding of the process of designing resistance training programs from both scientific and practical perspectives. As with previous editions, the fourth edition includes comprehensive tables that compare data and conclusions from research on core topics related to design of resistance training programs. By summarizing research and content for the reader, these tables offer a study guide, on-the-job reference, or starting point for further research. Designing Resistance Training Programs, Fourth Edition, is the only resource available that presents the body of research in the field in this organized and comprehensive format. The fourth edition has been thoroughly revised to present the most current information while retaining the studies that are the basis for concepts, guidelines, and applications in resistance training. Meticulously updated and heavily referenced, the fourth edition contains the following updates: • A full-color interior provides stronger visual appeal for the text. • Sidebars focus on a specific practical question or an applied research concept, allowing readers to connect research to real-life situations. • Multiple detailed tables summarize research from the text, offering an easy way to compare data and conclusions. • A glossary makes it simple to find key terms in one convenient location. • Newly added instructor ancillaries make the fourth edition a true learning resource for the classroom. Designing Resistance Training Programs, Fourth Edition, begins by outlining the principles of resistance training and exercise prescription, and examines the various types of strength training, including isometrics and eccentric training. This is followed by a discussion of resistance training from a physiological perspective and an overview of how resistance training programs interact with the other conditioning components such as aerobic, interval, plyometric, and flexibility training. Readers will then explore advanced training techniques, how to manipulate training variables in a long-term resistance training program, and ways to plan rest into long-term training that minimizes losses in fitness or performance gains. An important text for students, researchers, and practitioners, this textbook offers the information and tools to help readers evaluate resistance training programs and better understand the context and efficacy of new data findings in this ever-changing field. Designing Resistance Training Programs, Fourth Edition, is an essential resource for understanding the science behind resistance training and designing evidence-based resistance training programs for any population. This text provides the tools for understanding and designing resistance training programs for almost any situation or need.

Book Physiological Adaptations to Moderate Intensity Training in an Elite Cyclist

Download or read book Physiological Adaptations to Moderate Intensity Training in an Elite Cyclist written by Zach Gregg and published by . This book was released on 2020 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: TID in cycling is macrocycle specific and can change from year to year depending on the racing program and athlete’s goals. Professional and elite road cyclists can have seasons lasting 9 or 10 months. In the preparation phase and pre competition phase, small doses of MIT, HIT are interspersed with large volumes of LIT to enhance lactate threshold power and aerobic capacity with minimal total-body stress (Borszcz & Costa, 2019). This use of MIT and HIT during the preparation and pre competition phase is vital to induce positive physiological changes to athletes that will aid performance during the competitive season. MIT and HIT focused sessions impact lactate threshold, VO2max, anaerobic metabolism, efficiency, and FatMax (Joyner & Coyle, 2008). HIT work has been shown repeatedly to improve characteristics of VO2max and lactate threshold in elite cyclists (Stoggl & Sperlich, 2015). MIT as a focused training intervention has not been well studied, but PYR using a large volume of MIT has been shown highly effective (Treff et al., 2017). MIT focus in a PYR TID is seen in elite cyclist populations, but has not been studied with appropriate depth. Therefore, the purpose of this study is to compare two 6-week MIT, PYR protocols and their effects on key performance variables in an elite level cyclist.