Author: Yun Lin
Publisher:
ISBN:
Category : Blood pressure
Languages : en
Pages : 0

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Author: Brent E. Faught
Publisher:
ISBN:
Category : Blood pressure
Languages : en
Pages : 172

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Author: Darren A. Johnson
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 0

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Book Description
This study compared the cardiovascular responses to the PWC 140, cold pressor test (CPT), and isometric hand grip (IHG), to evaluate the consistency in the blood pressure response among these physical stressors. Eighteen resting normotensive males were classified as either normotensive at exercise or exercise hypertensive on the basis of their blood pressure response to the first stage of the Canadian Aerobic Fitness Test (CAFT) for their age group. Subjects were administered a 6-min PWC 140 bicycle ergometer test, a 120 sec CPT (forearm and hand immersion), and a 120 sec IHG at 30% MVC. Systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), stroke volume (SV), cardiac output (CO), and ejection fraction (EF) were recorded every 5 seconds during a one min resting period, during exercise, and for 3 min post exercise using a Finapress 2000 BP monitor and BoMed bioimpedance cardiac monitor. The results of this study indicate that: (1) there were no significant differences between the two groups for the cardiovascular responses to the PWC 140, IHG, and CPT with the exception of a greater CO and SV in normotensives on the PWC 140, and a higher HR in exercise hypertensives on the CPT; (2) the exercise hypertensives had a greater rate of increase in SBP and DBP than the normotensives over the first 90 seconds of the CPT; (3) there was no consistent pattern in the individual responses to the CAFT, CPT, and IHG with respect to $\Delta$SBP. It was concluded that within the context of this study, the blood pressure responses to dynamic exercise, isometric exercise, and cold stress were not consistent among the subjects and tests.

Author: Jacqueline L. Vanderluit
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 214

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Author: Paola S. Timiras
Publisher: CRC Press
ISBN: 1420007092
Category : Medical
Languages : en
Pages : 426

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Book Description
Extensively revised and updated to reflect the current state of knowledge in the study of aging, this Fourth Edition offers a complete profile of the aging process at all levels, from molecules and cells to demography and evolution. Written by international experts in current basic and clinical aging research, this text includes aspects of individual, comparative, and differential aging, and discussions of theories and mechanisms of aging. This invaluable reference illustrates how bodily systems, organs, and functions are affected with aging, describes how genetic and environmental factors influence age-related changes, and addresses some of the clinical consequences of these changes for health and longevity. Well illustrated, with numerous tables and graphs, this book presents up-to-date information from internationally renowned experts in various bio-medical fields.

Author: John C.S. Fray
Publisher: Springer
ISBN: 1461475775
Category : Medical
Languages : en
Pages : 306

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Book Description
Overall, American blacks have twice the rate of high blood pressure of American whites and five to seven times the rate of severe hypertension. As a result, American blacks have a higher incidence of stroke (50%), heart disease (30%), and kidney disease (50%). Not only are blacks more likely to develop hypertension, but the disorder develops earlier, is often more severe, and is more likely to be fatal at an earlier age. While lack of early and aggressive treatment contributes to the problem, research has shown that physiological and environmental factors play an important role. Pathophysiology of Hypertension in Blacks examines much of the research that has been done to explain the pathogenesis of hypertension among black Americans. The book is divided into four sections. The first section considers genetic mechanisms of the disease. Increased sensitivity to salt, a common feature among both normotensive and hypertensive blacks, may have developed during the slave trade and slavery as a physiological adaptation to prevent death from excessive loss of salt and water; survival favored those most able to conserve salt, an ability which predisposes black Americans today to hypertension. During childhood, this enhanced salt-sensitivity may be complicated by insulin resistance and hyperinsulinemia. The second section examines the role of social, cultural, psychosocial, and socioeconomic factors in the pathogenesis of hypertension. The authors of these chapters present models and explanations that show how these factors may influence physiological variables. The third area of the book deals with the role of urbanization and salt (both in and out of Africa), the role of diet, the role of intracellular ion metabolism, and the increasing significance of renin. The last section of the book summarizes the evidence presented in earlier chapters, and also outlines therapeutic strategies that are effective in controlling blood pressure in hypertensive blacks. The book presents underlying physiological mechanisms which may become impaired and therefore sets the stage for the application of modern molecular biology to the pathophysiology of hypertension in blacks. This book is a volume in the Clinical Physiology Series of the American Physiological Society and is based on a symposium sponsored by the Society at the 1990 meeting of the Federation of American Societies for Experimental Biology. It will be valuable to both researchers and clinicians who study and treat hypertension in blacks.

Author:
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 618

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Book Description
Consists of citations selected from those contained in the National Library of Medicine's Medical Literature Analysis and Retrieval System.

Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1340

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Author:
Publisher:
ISBN:
Category : Sports medicine
Languages : en
Pages : 266

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Book Description

Author: Hugh D. Allen
Publisher: Lippincott Williams & Wilkins
ISBN: 9780781786843
Category : Medical
Languages : en
Pages : 850

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Book Description
Established since 1968 as a classic pediatric cardiology text, this two-volume work is now in its Seventh Edition. Leading international experts describe state-of-the-art diagnostic and interventional techniques for young patients with congenital and acquired heart diseases and for adult survivors of congenital heart disease. This edition's section on pediatric cardiac intensive care has new chapters on interventricular and cardiopulmonary interactions and on the extreme premature, premature, and normal newborn. A section From the Gene to the Neonate provides in-depth coverage of genetics, fetal echocardiography, and fetal cardiology. An extensive section focuses on adult survivors of congenital heart disease. A companion Website will include the fully searchable online text and a full-color image bank.