Download or read book Inspiratory Muscle Training and Endurance Performace in Hypoxia written by Daniel G. Hursh and published by . This book was released on 2017 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ventilation is higher at any submaximal workload in hypoxia as compared to normoxia. Whether or not training the respiratory muscles helps to improve exercise performance in hypoxia is unclear. Purpose: To determine if improvements in ventilatory strength with chronic inspiratory muscle training (IMT) improves 20km cycling time trial (TT) performance in hypoxia (FIO2 = 16.1%).

Download or read book Respiratory Muscle Training written by Alison McConnell and published by Elsevier Health Sciences. This book was released on 2013-04-18 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Respiratory Muscle Training: theory and practice is the world’s first book to provide an "everything-you-need-to-know" guide to respiratory muscle training (RMT). Authored by an internationally-acclaimed expert, it is an evidence-based resource, built upon current scientific knowledge, as well as experience at the cutting-edge of respiratory training in a wide range of settings. The aim of the book is to give readers: 1) an introduction to respiratory physiology and exercise physiology, as well as training theory; 2) an understanding of how disease affects the respiratory muscles and the mechanics of breathing; 3) an insight into the disease-specific, evidence-based benefits of RMT; 4) advice on the application of RMT as a standalone treatment, and as part of a rehabilitation programme; and finally, 5) guidance on the application of functional training techniques to RMT. The book is divided into two parts – theory and practice. Part I provides readers with access to the theoretical building blocks that support practice. It explores the evidence base for RMT as well as the different methods of training respiratory muscles and their respective efficacy. Part II guides the reader through the practical implementation of the most widely validated form of RMT, namely inspiratory muscle resistance training. Finally, over 150 "Functional" RMT exercises are described, which incorporate a stability and/or postural challenge – and address specific movements that provoke dyspnoea. Respiratory Muscle Training: theory and practice is supported by a dedicated website (www.physiobreathe.com), which provides access to the latest information on RMT, as well as video clips of all exercises described in the book. Purchasers will also receive a three-month free trial of the Physiotec software platform (via www.physiotec.ca), which allows clinicians to create bespoke training programmes (including video clips) that can be printed or emailed to patients. Introductory overviews of respiratory and exercise physiology, as well as training theory Comprehensive, up-to-date review of respiratory muscle function, breathing mechanics and RMT Analysis of the interaction between disease and respiratory mechanics, as well as their independent and combined influence upon exercise tolerance Analysis of the rationale and application of RMT to over 20 clinical conditions, e.g., COPD, heart failure, obesity, mechanical ventilation Evidence-based guidance on the implementation of inspiratory muscle resistance training Over 150 functional exercises that incorporate a breathing challenge www.physiobreathe.com - access up-to-date information, video clips of exercises and a three-month free trial of Physiotec’s RMT exercise module (via www.physiotec.ca)

Download or read book Effectiveness of Inspiratory Muscle Training on Endurance Running Performance in Recreational Runners written by Man-kit Thomas Kwok and published by . This book was released on 2008 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book The Effect of Inspiratory Muscle Training on Exercise in Acute Hypoxia written by Amy E. Downey and published by . This book was released on 2004 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Respiratory Muscle Training Improves Exercise Endurance at Altitude written by Samuel Helfer and published by . This book was released on 2013 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: People have been traveling to high altitude for centuries where they are faced with adverse environmental conditions. As one ascends to elevation, the barometric pressure is reduced and the air gets thinner. These changes affect the partial pressure of gases in the ambient air. The decreased partial pressures of oxygen affects physiological processes, such as increased ventilation (hyperventilation), vascular tone and the decreased capacity for cellular metabolism. These changes have serious implications on exercise capacity and overall safety of individuals exposed to these conditions as well as their health. Prior studies have shown voluntary isocapnic hyperpnea training (VIHT) to eliminate the hyperventilatory response associated with exercise at sea level. Since high altitude provokes hyperventilation at rest, and the addition of higher intensity exercise exacerbates this response, the respiratory muscles have a higher propensity to fatigue, further limiting exercise capacity. High ventilation rates, especially at altitude, cause significant decreases in the arterial partial pressure of carbon dioxide (PaCO2) leading to the constriction of blood vessels. The constriction has potential detrimental effects on cerebral oxygenation and therefore central fatigue. These factors, taken together, produce severe limitations on exercise capacity at altitude. This study was designed to measure the effects of VIHT three days per week for four weeks on exercise performance at 10,000ft simulated altitude. Ten healthy non-smoking moderately active men were recruited, five of which completed the study. The subjects performed Pre- and Post-VIHT exercise endurance trials cycling at 60rpm against 75% of their predetermined maximal workload (determined at sea level) on an electrically break cycle ergometer in a hypobaric (decompression) chamber. Prior to the start of exercise and during exercise physiological responses were measured and recorded during exercise at altitude. Heart rate, arterial oxygen saturation (SaO2), cerebral blood flow velocity (CBFv), diffused cerebral tissue oxygen saturation, end tidal CO2 and mixed expiratory gases were measured as well as ventilatory characteristics such as minute ventilation, respiratory rate and tidal volumes were recorded. All subjects training minute ventilation rates improved over the twelve training sessions, 37% on average. At rest, subjects SaO2 decreased 6. 6% on average from sea level to simulated altitude while heart rates subsequently increased on average from 73 to 86 bpm.^During exercise at altitude there was marked hyperventilation in both Pre- and Post-VIHT endurance trials, and more so in the post-VIHT trials, lowering end tidal CO2 throughout the trial. Corresponding to the hyperventilation, CBFv also decreased while cerebral oxygen saturation remained constant. Exercise endurance times improved 64% on average from Pre- to Post VIHT trials. These results suggest that VIHT reduces respiratory muscle fatigue, allowing subjects to breathe at higher ventilation rates for extended periods of time, which improves exercise endurance at altitude. Key Words:Altitude, respiratory muscle training, exercise, cerebral blood flow velocity.

Download or read book Hypoxia and Exercise written by Robert Roach and published by Springer Science & Business Media. This book was released on 2007-04-03 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 14th volume in the series will focus on cutting edge research at the interface of hypoxia and exercise. The work will cover the range from molecular mechanisms of muscle fatigue and muscle wasting to whole body exercise on the world’s highest mountains. State of the art papers on training at high altitude for low altitude athletic performance will also be featured.

Download or read book Textbook of Pulmonary Rehabilitation written by Enrico Clini and published by Springer. This book was released on 2017-12-21 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides up-to-date knowledge on all aspects of the multidisciplinary approach to pulmonary rehabilitation that is essential in order to achieve optimal results. It will be an ideal resource especially for pulmonologists in training, but will also be of value for physiotherapists, other health care professionals, and technicians. Detailed information is presented on the diverse program components in pulmonary rehabilitation, with clear explanation of the roles of the nutritionist, psychologist, occupational therapist, respiratory nurse, and physical activity coach. Guidance is provided on identification of candidates for pulmonary rehabilitation and on all aspects of assessment, including exercise capacity, muscle function, and physical activity. Patient-centered, economic, and other outcomes are examined, with separate discussion of combined outcome assessment. Furthermore, due consideration is given to organizational aspects of pulmonary rehabilitation and to rehabilitation in specific scenarios, e.g., thoracic oncology and surgery, transplantation, and the ICU. The authors are internationally recognized experts selected for their expertise in the topics they discuss.

Download or read book Hypoxia Conditioning in Health Exercise and Sport written by Olivier Girard and published by Taylor & Francis. This book was released on 2024-09-30 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: While severe hypoxia has detrimental health consequences, the controlled application of hypoxia can be protective and holds great promise as a performance-enhancing and therapeutic intervention. Hypoxia Conditioning in Health, Exercise and Sport: Principles, Mechanisms and Applications delivers an understanding of systemic and molecular mechanisms involved in hypoxia adaptations and examines the most promising forms of hypoxia conditioning with a view to create performance-enhancing strategies for athletes, as well as an offering an examination on clinical applications for numerous pathologies. This cutting-edge book examines how positive physiological adaptations not only acutely enhance tolerance to hypoxia but can also induce sustained health benefits. This has enabled the development and refinement of approaches utilizing hypoxia, strategies also termed hypoxia conditioning, to improve health and performance outcomes. By linking research with recommendations for real-world situations, this volume will serve as an invaluable resource for students, academics, exercise science professionals and sports medicine specialists, especially those in environmental physiology and coaching subjects.

Download or read book Time Domains of Hypoxia Adaptation Evolutionary Insights and Applications written by Tatum S. Simonson and published by Frontiers Media SA. This book was released on 2021-12-22 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hypoxia written by Robert C. Roach and published by Springer Science & Business Media. This book was released on 2002-01-31 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypoxia remains a constant threat throughout life. It is for this reason that the International Hypoxia Society strives to maintain a near quarter century tradition of presenting a stimulating blend of clinical and basic science discussions. International experts from many fields have focused on the state-of-the-art discoveries in normal and pathophysiological responses to hypoxia. Topics in this volume include gene-environment interactions, a theme developed in both a clinical context regarding exercise and hypoxia, as well as in native populations living in high altitudes. Furthermore, experts in the field have combined topics such as skeletal muscle angiogenesis and hypoxia, high altitude pulmonary edema, new insights into the biology of the erythropoietin receptor, and the latest advances in cardiorespiratory control in hypoxia. This volume explores the fields of anatomy, cardiology, biological transport, and biomedical engineering among many others.

Download or read book High Altitude written by Erik R. Swenson and published by Springer Science & Business Media. This book was released on 2013-11-26 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​ Over the last decade the science and medicine of high altitude and hypoxia adaptation has seen great advances. High Altitude: Human Adaptation to Hypoxia addresses the challenges in dealing with the changes in human physiology and the particular medical conditions that arise from exposure to high altitude. In-depth and comprehensive chapters cover both the basic science and the clinical consequences of exposure to high altitude. Genetic, cellular, organ and whole body system responses to high altitudes are covered and chapters discuss these effects on a wide range of diseases. Expert authors provide insight into the care of patients with pre-existing medical conditions that fail in some cases to adapt as well as offer insights into how high altitude research can help critically ill patients. High Altitude: Human Adaptation to Hypoxia is an important new volume that offers a window into greater understanding and more successful treatment of hypoxic human diseases.

Download or read book Regulation of Endurance Performance New Frontiers written by Alexis R. Mauger and published by Frontiers Media SA. This book was released on 2017-11-22 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Successful endurance performance requires the integration of multiple physiological and psychological systems, working together to regulate exercise intensity in a way that will reduce time taken or increase work done. The systems that ultimately limit performance of the task are hotly contested, and may depend on a variety of factors including the type of task, the environment, external influences, training status of the individual and a host of psychological constructs. These factors can be studied in isolation, or inclusively as a whole-body or integrative system. A reductionist approach has traditionally been favoured, leading to a greater understanding and emphasis on muscle and cardiovascular physiology, but the role of the brain and how this integrates multiple systems is gaining momentum. However, these differing approaches may have led to false dichotomy, and now with better understanding of both fields, there is a need to bring these perspectives together. The divergent viewpoints of the limitations to human performance may have partly arisen because of the different exercise models studied. These can broadly be defined as open loop (where a fixed intensity is maintained until task disengagement), or closed loop (where a fixed distance is completed in the fastest time), which may involve whole-body or single-limb exercise. Closed loop exercise allows an analysis of how exercise intensity is self-regulated (i.e. pacing), and thus may better reflect the demands of competitive endurance performance. However, whilst this model can monitor changes in pacing, this is often at the expense of detecting subtle differences in the measured physiological or psychological variables of interest. Open loop exercise solves this issue, but is limited by its more restrictive exercise model. Nonetheless, much can be learnt from both experimental approaches when these constraints are recognised. Indeed, both models appear equally effective in examining changes in performance, and so the researcher should select the exercise model which can most appropriately test the study hypothesis. Given that a multitude of both internal (e.g. muscle fatigue, perception of effort, dietary intervention, pain etc.) and external (e.g. opponents, crowd presence, course topography, extrinsic reward etc.) factors likely contribute to exercise regulation and endurance performance, it may be that both models are required to gain a comprehensive understanding. Consequently, this research topic seeks to bring together papers on endurance performance from a variety of paradigms and exercise models, with the overarching aim of comparing, examining and integrating their findings to better understand how exercise is regulated and how this may (or may not) limit performance.

Download or read book Effects of Inspiratory Muscle Training on Arterial Oxygen hemoglobin Saturation in Female Collegiate Endurance Runners written by Katrina Schwerdtfeger and published by . This book was released on 2008 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antioxidants in Sport Nutrition written by Manfred Lamprecht and published by CRC Press. This book was released on 2014-09-17 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of antioxidants in sports is controversial due to existing evidence that they both support and hinder athletic performance. Antioxidants in Sport Nutrition covers antioxidant use in the athlete ́s basic nutrition and discusses the controversies surrounding the usefulness of antioxidant supplementation. The book also stresses how antioxidants may affect immunity, health, and exercise performance. The book contains scientifically based chapters explaining the basic mechanisms of exercise-induced oxidative damage. Also covered are methodological approaches to assess the effectiveness of antioxidant treatment. Biomarkers are discussed as a method to estimate the bioefficacy of dietary/supplemental antioxidants in sports. This book is useful for sport nutrition scientists, physicians, exercise physiologists, product developers, sport practitioners, coaches, top athletes, and recreational athletes. In it, they will find objective information and practical guidance.

Download or read book Breathing in Sport and Exercise Physiology Pathophysiology and Applications written by Andrea Nicolò and published by Frontiers Media SA. This book was released on 2023-12-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exercise Physiology written by William McArdle and published by Lippincott Williams & Wilkins. This book was released on 2023-04-05 with total page 3461 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a legacy spanning more than 40 years, Exercise Physiology: Nutrition, Energy, and Human Performance has helped nearly half a million students and exercise science practitioners build a solid foundation in the scientific principles underlying modern exercise physiology. This widely praised, trendsetting text presents a research-centric approach in a vibrant, engaging design to make complex topics accessible and deliver a comprehensive understanding of how nutrition, energy transfer, and exercise training affect human performance. The extensively updated 9th Edition reflects the latest advances in the field as well as a rich contextual perspective to ensure readiness for today’s clinical challenges.