Physiological Determinants of Exercise Tolerance in Humans

Physiological Determinants of Exercise Tolerance in Humans PDF Author: Physiological Society (Great Britain)
Publisher: Ashgate Publishing
ISBN:
Category : Medical
Languages : en
Pages : 200

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Book Description
This work describes the physiological and biochemical responses to exercise. It examines the nature of the fatigue process and the adaptations which occur in response to training and how these responses are influenced by a variety of environmental factors.

Physiological Determinants of Exercise Tolerance in Humans

Physiological Determinants of Exercise Tolerance in Humans PDF Author: Physiological Society (Great Britain)
Publisher: Ashgate Publishing
ISBN:
Category : Medical
Languages : en
Pages : 200

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Book Description
This work describes the physiological and biochemical responses to exercise. It examines the nature of the fatigue process and the adaptations which occur in response to training and how these responses are influenced by a variety of environmental factors.

Physiological Determinants of Exercise Tolerance in Humans

Physiological Determinants of Exercise Tolerance in Humans PDF Author:
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 0

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Book Description


Physiological Determinants of Human Exercise Tolerance

Physiological Determinants of Human Exercise Tolerance PDF Author: b; sargeant whipp (aj)
Publisher:
ISBN:
Category :
Languages : en
Pages :

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The Physiology and Pathophysiology of Exercise Tolerance

The Physiology and Pathophysiology of Exercise Tolerance PDF Author: Jürgen M. Steinacker
Publisher: Springer Science & Business Media
ISBN: 1461558875
Category : Medical
Languages : en
Pages : 318

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Book Description
Proceedings of an international symposium, held in Ulm, Germany, September 21-24, 1994

Regulation of Coronary Blood Flow

Regulation of Coronary Blood Flow PDF Author: Michitoshi Inoue
Publisher: Springer Science & Business Media
ISBN: 4431683674
Category : Medical
Languages : en
Pages : 330

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Book Description
Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.

The Influence of Oxygen Delivery and Oxygen Utilization on the Determinants of Exercise Tolerance

The Influence of Oxygen Delivery and Oxygen Utilization on the Determinants of Exercise Tolerance PDF Author: Ryan M. Broxterman
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The physiological mechanisms determining the tolerable duration of exercise dictate human physical accomplishments across all spectrums of life. Despite extensive study, these specific mechanisms, and their dependence on oxygen delivery and oxygen utilization, remain, a certain extent, undefined. The purpose of this dissertation was to test the overarching hypothesis that muscle contraction characteristics (i.e., intensity of contraction, muscle contraction-relaxation duty cycle, etc.) alter oxygen delivery and oxygen utilization, which directly influence the power-duration relationship and fatigue development, and therefore, exercise tolerance. To accomplish this, specific interventions of altered muscle contraction-relaxation duty cycle and blood flow occlusion were utilized. In the first investigation (Chapter 2), we utilized low and high muscle contraction-relaxation duty cycles to alter blood flow to the active skeletal muscle, demonstrating that critical power (CP) was reduced with the high muscle contraction-relaxation duty cycle due to a reduction in blood flow, while the curvature constant (W') was not altered. The second investigation (Chapter 3) utilized blood flow occlusion to show that CP was reduced and W' increased for blood flow occlusion exercise conditions compared to control blood flow exercise conditions. The final investigation (Chapter 4) utilized periods of blood flow occlusion during and post-exercise to reveal greater magnitudes of peripheral and central fatigue development during blood flow occlusion exercise compared to control blood flow exercise. Moreover, this investigation demonstrated that W' was significantly related to the magnitude of fatigue development. Collectively, alterations in oxygen delivery and oxygen utilization via muscle contraction characteristics and blood flow occlusion directly influence CP and the magnitude of fatigue development. However, W' does not appear to be influenced by manipulations in oxygen delivery and oxygen utilization, per se. Rather, W' may be determined by the magnitude of fatigue accrued during exercise, which is dependent upon oxygen delivery and oxygen utilization. The novel findings of the investigations presented in this dissertation highlight important physiological mechanisms that determine exercise tolerance and demonstrate the need for interventions that improve oxygen delivery and oxygen utilization in specific populations, such as those with chronic heart failure or chronic obstructive pulmonary disease, to improve exercise tolerance.

Psychology of Physical Activity

Psychology of Physical Activity PDF Author: Stuart J. H. Biddle
Publisher: Routledge
ISBN: 1134211929
Category : Social Science
Languages : en
Pages : 576

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Book Description
As modern lifestyles offer ever more opportunities for a sedentary existence, physical activity has become, for many, a marginal aspect of life. Too little physical activity is linked to common, often serious, health problems, and although this link is now widely acknowledged, levels of sedentary behaviour continue to increase throughout western society. Psychology of Physical Activity, 2nd Edition addresses this concern, bringing together a wealth of up to date information about exercise behaviour including: motivation and psychological factors associated with activity or inactivity the psychological outcomes of exercising including the 'feel–good' factor understanding specific clinical populations interventions and applied practice in the psychology of physical activity current trends and future directions in research and practice. Updated to reflect new findings and research directions, this new edition includes full textbook features, and is accompanied by a dedicated website providing lecturers and students with extensive support materials, including powerpoint slides and student MCQ's. Visit the companion website at www.routledge.com/textbooks/9780415366656.

Educating the Student Body

Educating the Student Body PDF Author: Committee on Physical Activity and Physical Education in the School Environment
Publisher: National Academies Press
ISBN: 0309283140
Category : Medical
Languages : en
Pages : 503

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Book Description
Physical inactivity is a key determinant of health across the lifespan. A lack of activity increases the risk of heart disease, colon and breast cancer, diabetes mellitus, hypertension, osteoporosis, anxiety and depression and others diseases. Emerging literature has suggested that in terms of mortality, the global population health burden of physical inactivity approaches that of cigarette smoking. The prevalence and substantial disease risk associated with physical inactivity has been described as a pandemic. The prevalence, health impact, and evidence of changeability all have resulted in calls for action to increase physical activity across the lifespan. In response to the need to find ways to make physical activity a health priority for youth, the Institute of Medicine's Committee on Physical Activity and Physical Education in the School Environment was formed. Its purpose was to review the current status of physical activity and physical education in the school environment, including before, during, and after school, and examine the influences of physical activity and physical education on the short and long term physical, cognitive and brain, and psychosocial health and development of children and adolescents. Educating the Student Body makes recommendations about approaches for strengthening and improving programs and policies for physical activity and physical education in the school environment. This report lays out a set of guiding principles to guide its work on these tasks. These included: recognizing the benefits of instilling life-long physical activity habits in children; the value of using systems thinking in improving physical activity and physical education in the school environment; the recognition of current disparities in opportunities and the need to achieve equity in physical activity and physical education; the importance of considering all types of school environments; the need to take into consideration the diversity of students as recommendations are developed. This report will be of interest to local and national policymakers, school officials, teachers, and the education community, researchers, professional organizations, and parents interested in physical activity, physical education, and health for school-aged children and adolescents.

Exercise Physiology

Exercise Physiology PDF Author: Tudor Hale
Publisher: John Wiley & Sons
ISBN: 0470869674
Category : Medical
Languages : en
Pages : 356

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Book Description
Exercise Physiology: A Thematic Approach introduces students with little or no background in human biology to the fundamentals of the physiological processes involved in sports performance. Its central theme is the physiological explanation of maximal oxygen uptake, one of the key concepts in sport and exercise physiology courses. It also includes material on anaerobic metabolism, carbon dioxide excretion and some special cases such as oxygen uptake at altitude and in a variety of extreme climates. Clearly written to provides a logical, linear development of the key concepts. Maximises the use of student's practical laboratory experiences. Includes numerous sporting examples to which students can relate. Excellent pedagogy including learning objectives, problems, objective tests and a glossary of terms and symbols. This is the first title in an exciting new series of Sports Science textbooks - Wiley SportTexts. It aims to provide textbooks covering the key disciplines within the academic study of sport. The series adopts a student-centred, interactive, problem-solving approach with the students’ immediate practical experience as the starting point.

Oxygen Uptake Kinetics in Sport, Exercise and Medicine

Oxygen Uptake Kinetics in Sport, Exercise and Medicine PDF Author: Andrew M. Jones
Publisher: Routledge
ISBN: 1134404506
Category : Medical
Languages : en
Pages : 433

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Book Description
Despite its crucial importance, scientists interested in the limitations of human physical performance have only just started to give the field of oxygen uptake kinetics the attention it deserves. Understanding the principal determinant of the oxygen uptake kinetics is fundamental to improving human performance or the quality of life. This book provides a detailed overview of the current state of knowledge of this emerging field of study, and features: * an introduction to oxygen uptake kinetics and historical development of the discipline * measurement and analysis of oxygen uptake kinetics * control of and limitations to oxygen uptake kinetics * applications of oxygen uptake kinetics in a range of human populations. Oxygen Uptake Kinetics in Sport, Health and Medicine is richly illustrated and structured to enable easy access of information and represents an invaluable resource for students and researchers in exercise physiology, as well as for respiratory physiologists and pulmonary clinicians.