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Author: Andrew Edwards Publisher: Nova Science Publishers ISBN: 9781633212459 Category : Cardiac pacing Languages : en Pages : 0
Book Description
Pacing in sport and exercise: a psychophysiological perspective is the first book which comprehensively examines the way humans pace exercise and sporting activities. This concept represents an exciting opportunity to combine the latest physiological and psychological theories with practical sport and exercise applications. The book will be an essential read for sport and exercise science academics, students, coaches, athletes and general exercise enthusiasts. Pacing is the strategy by which effort is managed across an exercise bout in relation to a specific goal and in the knowledge of the likely demands of the task. It is widely recognised that individuals distribute effort across a task and this is in evidence during all non-reflex exercise situations where individuals are able to receive and act upon neural feedback from peripheral physiologic systems. As such, pacing across a wide range of sport and exercise contexts is investigated and explained. Sporting activities as diverse as sprinting, soccer, triathlon, rowing and cycling are discussed. In addition, training methodologies to improve the ability to self-pace exercise are reviewed and a self-regulatory system to optimise training across all exercise types is proposed. Templates for consolidating training sessions, design and monitoring strategies are included. Pacing in relation to specific population groups such as children, overweight/obese individuals and those with chronic or acute illnesses is also discussed. Finally, it is hoped this new book will stimulate further research, growth and awareness of this important topic.
Author: Andrew Edwards Publisher: Nova Science Publishers ISBN: 9781633212459 Category : Cardiac pacing Languages : en Pages : 0
Book Description
Pacing in sport and exercise: a psychophysiological perspective is the first book which comprehensively examines the way humans pace exercise and sporting activities. This concept represents an exciting opportunity to combine the latest physiological and psychological theories with practical sport and exercise applications. The book will be an essential read for sport and exercise science academics, students, coaches, athletes and general exercise enthusiasts. Pacing is the strategy by which effort is managed across an exercise bout in relation to a specific goal and in the knowledge of the likely demands of the task. It is widely recognised that individuals distribute effort across a task and this is in evidence during all non-reflex exercise situations where individuals are able to receive and act upon neural feedback from peripheral physiologic systems. As such, pacing across a wide range of sport and exercise contexts is investigated and explained. Sporting activities as diverse as sprinting, soccer, triathlon, rowing and cycling are discussed. In addition, training methodologies to improve the ability to self-pace exercise are reviewed and a self-regulatory system to optimise training across all exercise types is proposed. Templates for consolidating training sessions, design and monitoring strategies are included. Pacing in relation to specific population groups such as children, overweight/obese individuals and those with chronic or acute illnesses is also discussed. Finally, it is hoped this new book will stimulate further research, growth and awareness of this important topic.
Author: Gerald Matthews Publisher: CRC Press ISBN: 1317029402 Category : Technology & Engineering Languages : en Pages : 440
Book Description
Fatigue is a recognized problem in many facets of the human enterprise. It is not confined to any one area of activity but enters all situations in which humans have to perform for extended intervals of time. Most problematic are the circumstances in which obligatory action is continuous and the results of failure are evidently serious or even catastrophic. Therefore, the modern media especially highlights fatigue-related failures in industries such as transportation, materials processing and healthcare. It can be, and indeed is, no coincidence that most of the spectacular failures in process control that have resulted in the world's largest industrial accidents have occurred in the small hours of the morning when the circadian rhythm is lowest and operator fatigue itself peaks. While there have been legislative efforts made at state, federal and international levels to regulate working hours of employees, the appropriate implementation of such legislation is still a long way off. The Handbook of Operator Fatigue provides a comprehensive account of the subject to serve as the definitive reference work for researchers, students and practitioners alike. The volume features 30 chapters written by experts from around the world to address each important facet of fatigue, including: the scale of the fatigue problem (Section I), the nature of fatigue (Section II), how to assess fatigue (Section III), the impact of fatigue on health (Section IV), fatigue in the workplace (Section V), the neurological basis of fatigue (VI), sleep disorders (VII), and the design of countermeasures to fatigue (VIII).
Author: Alexis R. Mauger Publisher: Frontiers Media SA ISBN: 2889453294 Category : Languages : en Pages : 248
Book Description
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.
Author: Frank E. Marino Publisher: Karger Medical and Scientific Publishers ISBN: 3805586485 Category : Medical Languages : en Pages : 145
Book Description
Over the last decades, our understanding of the relationship between thermoregulation, performance and fatigue has changed dramatically. New advances in technology and methodology permitted the study of rising and decreasing body temperature on metabolism and provided insights into the role the nervous system plays in determining human performance under thermally stressful situations. Further analysis of previous research has been necessary in addition to considering theories derived from complimentary areas of research such as evolutionary biology, anthropology and cellular and molecular biology. This publication provides different interpretations of recent research for a better understanding of the limitations of thermoregulation. In particular, it presents evidence for the human's ability to anticipate thermal limits and adjust their performance accordingly so that cellular homeostasis is preserved. Further, the book is featuring the inclusion of the effect of reduced body temperature on muscular performance and endurance which today is a popular method for providing avenues of reduced thermal strain and recovery from exercise. This publication will be an essential read for those working in thermal medicine, exercise physiology and human performance.
Author: Olivier Girard Publisher: Frontiers Media SA ISBN: 2889454061 Category : Languages : en Pages : 169
Book Description
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.
Author: Shaun Phillips Publisher: Taylor & Francis ISBN: 1003829368 Category : Medical Languages : en Pages : 327
Book Description
Fatigue is an important concern for athletes at all levels, recreational sport and exercise participants, athletic coaches, personal trainers, and fitness professionals. The study of fatigue is also important for students of the sport, exercise, and health sciences, as it enables a deeper understanding of fundamental physical function and the limitations behind human performance. There remains considerable debate about the definition of fatigue, what causes it, its impact during different forms of sport and exercise, and the multitude of factors that can influence the nature and severity of fatigue. The vast body of literature in these areas can make it challenging to understand what we know and what we still need to understand about fatigue in sport and exercise. The second edition of this book presents a fully revised and updated overview of the contemporary research evidence into sport and exercise fatigue. The book examines the latest thinking into how we conceptualise fatigue, as well as how we measure it. The fundamental science of fatigue is introduced, focussing predominantly on physiological aspects of energy depletion, metabolic acidosis, environmental challenges, electrolytes and minerals, and the perception of fatigue as it relates to mental fatigue and the central regulation of sport and exercise performance. Each chapter includes real case studies from sport and exercise, as well as useful features to aid learning and understanding such as definitions of key terms, guides to further reading, and discussion questions. Fatigue in Sport and Exercise, Second Edition is an invaluable companion for any degree-level course in sport and exercise science, fitness and training, or strength and conditioning.
Author: Richard Davison Publisher: Routledge ISBN: 1000537692 Category : Sports & Recreation Languages : en Pages : 470
Book Description
Since its first published edition more than 30 years ago, the BASES (British Association of Sport and Exercise Sciences) Physiological Testing Guidelines have represented the leading knowledge base of current testing methodology for sport and exercise scientists. Sport and exercise physiologists conduct physiological assessments that have proven validity and reliability, both in laboratory and sport-specific contexts. A wide variety of test protocols have been developed, adapted and refined to support athletes of all abilities reach their full potential. This book is a comprehensive guide to these protocols and to the key issues relating to physiological testing. With contributions from leading specialist sport physiologists and covering a wide range of mainstream sports in terms of ethical, practical and methodological issues, this volume represents an essential resource for sport-specific exercise testing in both research and applied settings. This new edition draws on the authors’ experience of supporting athletes from many sports through several Olympic cycles to achieve world leading performances. While drawing on previous editions, it is presented in a revised format matching the sport groupings used in elite sport support within the UK sport institutes. Building on the underpinning general procedures, these specific chapters are supported by appropriate up-to-date case studies in the supporting web resources.
Author: Laursen, Paul Publisher: Human Kinetics ISBN: 1492552127 Category : Sports & Recreation Languages : en Pages : 672
Book Description
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.
Author: Andrew Edwards
Author: Andrew Edwards
Author: Gerald Matthews
Author: Alexis R. Mauger
Author: Frank E. Marino
Author: Olivier Girard
Author: Shaun Phillips
Author: Iñigo Mujika
Author: Richard Davison
Author: Laursen, Paul
Author: Matias Mosqueira