Download or read book Physiological Differences in Cardiovascular Hemodynamics Across Treadmill and Cycle Exercise as Assessed Through Impedance Cardiography written by and published by . This book was released on 2019 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impedance cardiography (IC) measures cardiovascular hemodynamics non-invasively during exercise. However, IC measurements assessing physiological differences across treadmill (TM) and cycle (CYC) exercise has not been investigated. The purpose of this study is to investigate whether hemodynamic measurements assessed via IC are consistent between TM and CYC exercise at two absolute exercise intensities. Twenty-one men (age = 21.4 ± 0.5 y; BMI = 24.4 ± 0.5) completed four exercise tests, two TM and two CYC. Within each test, two, five-minute, steady-state stages were completed with targeted intensities of 5 (MODex) and 7 (VIGex) metabolic equivalents (METs). Oxygen consumption (VO2) was measured by indirect calorimetry. Hemodynamic measures were obtained via IC (PhysioFlow, PF07 Enduro) and included cardiac output (CO), heart rate (HR), stroke volume (SV), end diastolic volume (EDV), ejection fraction (EF), systemic vascular resistance (SVR), contractility index (CTi), and left cardiac work index (LCWi). Within treadmill exercise, there were no main effects for trial, except for HR. There were no main effects for trial within CYC exercise. Across exercise modes, there were no significant differences between TM and CYC exercise for all variables, with the exception of higher HR in CYC, and higher SV and EDV in TM. ICCs were strong for all variables except VIGex SVR and VIGex LCWi. IC hemodynamic measurements showed strong repeatability across modes for all hemodynamic variables during MODex. For VIGex, all variables showed strong correlations, except for SVR and LCWi. Lack of agreement may be associated with daily variation in hemodynamics or physiological differences across modes with the remainder of discrepancies associated with device error.
Download or read book Repeatability of Impedance Cardiography in the Measurement of Cardiovascular Hemodynamics During Exercise written by and published by . This book was released on 2019 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Repeatability of Impedance Cardiography Hemodynamic Variables During Treadmill Exercise Purpose To analyze the day to day repeatability of cardiac hemodynamic measurements using a Physio Flow 07 Enduro during treadmill submaximal exercise. Methods 21 male subject ages 18 and older were studied. Two graded treadmill exercise tests consisting of two 5-minute steady state stages (Moderate and Vigorous intensity) were performed using the PhysioFlow device at least 48 hours apart. Cardiac hemodynamic measurements were compared between stages and trials using repeated measures ANOVA, intraclass correlations, and Bland-Altman plots. Results Oxygen consumption (VO2) and respiratory exchange ratio (RER), were not different between the two trials for either Moderate or Vigorous intensities. There was a main effect for intensity for all variables with the exception early diastolic filling ratio (EDFR) and ejection fraction (EF%). Intraclass correlation coefficients between exercise trials were > 0.7 for all hemodynamic variables except for ventricular ejection time (VET) (Moderate and Vigorous Intensity stages), and EDFR (Moderate Intensity Stage). Coefficient of Variation between exercise trials were0.05) for all hemodynamic measures except heart rate (HR) (P = 0.018 and 0.019 for Moderate Intensity Stage and Vigorous Intensity Stage, respectively), left cardiac work index (LCWi) (Vigorous Intensity Stage, P = 0.000), and systemic vascular resistance index (SVRi) (Vigorous Intensity Stage, P = 0.000). Conclusion Measurements from the PhysioFlow was repeatable, with no statistical differences across trials and reasonably strong reliability coefficients for most relevant hemodynamic variables, apart from VET and Low Intensity Stage EDFR, during moderate and vigorous intensity treadmill exercise. Keywords: PhysioFlow, Impedance Cardiography, hemodynamic variables, cardiac output, stroke volume, non-invasive
Download or read book Exploration of the Physiological Effects of Exercise in Cardiovascular Diseases written by Markos Klonizakis and published by Frontiers Media SA. This book was released on 2020-11-18 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Physical Fitness sports Medicine written by and published by . This book was released on 1980 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consists of citations selected from those contained in the National Library of Medicine's Medical Literature Analysis and Retrieval System.
Download or read book Physical Fitness sports Medicine written by and published by . This book was released on 1990 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1990 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society written by IEEE Engineering in Medicine and Biology Society. Conference and published by . This book was released on 1991 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Physiology and Pharmacology written by and published by . This book was released on 1996 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 1940 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1987 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diagnosis and Management of Hypertrophic Cardiomyopathy written by Barry J. Maron and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diagnosis and Management of Hypertrophic Cardiomyopathy is aunique, multi-authored compendium of information regarding thecomplexities of clinical and genetic diagnosis, natural history,and management of hypertrophic cardiomyopathy (HCM)—the mostcommon and important of the genetic cardiovasculardiseases—as well as related issues impacting the health oftrained athletes. Edited by Dr. Barry J. Maron, a world authority on HCM, and withmajor contributions from all of the international experts in thisfield, this book provides a single comprehensive source ofinformation concerning HCM. Recent advances in the field arediscussed, including the importance of left ventricular outflowtract obstruction, the use of implantable defibrillators for theprevention of sudden death in young people, definition of thegenetic basis for HCM and its role in clinical diagnosis and riskstratification, the development of more precise strategies forassessing the level of risk for sudden death among all patientswith HCM, and the evolution of invasive interventions for heartfailure symptoms, such as surgical management and its alternatives(alcohol septal ablation and dual-chamber pacing). Key Features: Contributions from all experts in the field,representing diverse viewpoints regarding this heterogeneousdisease and related issues in athletes Information to dispel misunderstandings regarding issuesassociated with HCM and cardiovascular disease in athletes The only comprehensive source of information available on thetopic
Download or read book IOC Manual of Sports Cardiology written by Mathew G. Wilson and published by John Wiley & Sons. This book was released on 2016-12-19 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 8 Cardiovascular Screening for the Prevention of Sudden Cardiac Death in AthletesIntroduction; The Risk of Sudden Death in Athletes; Rationale for Screening Competitive Athletes; The Screening Programmes Implemented in Italy; Rationale for Including a 12-Lead ECG in the PPE ; Efficacy of Screening to Identify Cardiac Disease Risk; Impact of the Screening Programme on Cardiac Mortality; Costs of Systematic Screening across Italy; Limitations of Screening Programmes; Conclusion; References
Download or read book Oxygen Uptake Kinetics in Sport Exercise and Medicine written by Andrew M. Jones and published by Routledge. This book was released on 2013-07-04 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Post Exercise Recovery Fundamental and Interventional Physiology written by Sergej M. Ostojic and published by Frontiers Media SA. This book was released on 2016-05-25 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physiological responses after maximal and submaximal exercise are routinely monitored in a plethora of diseases (e.g. cardiovascular diseases, cancer, diabetes, asthma, neuromuscular disorders), and normal populations (e.g. athletes, youth, elderly), while slower or irregular post-exercise recovery usually indicates poor health and/or low fitness level. Abnormal post-exercise recovery (as assessed via blunted post-exercise heart rate dynamics) helps to predict the presence and severity of coronary artery disease, while differences in recovery outcomes in athletes might discriminate between fit and unfit individuals. Disturbances in post-exercise recovery might be due to acute or persistent changes in: (1) adaptive responses mediated by the autonomic nervous system and vasodilator substances, (2) cellular bioenergetics, and/or (3) muscular plasticity. Preliminary evidence suggests possible role of time-dependent modulation of nitric oxide synthase and adenosine receptors during post-exercise recovery, yet no molecular attributes of post-exercise recovery are revealed so far. Currently several markers of post-exercise recovery are used (e.g. heart rate measures, hormone profiles, biochemical and hematological indices); however none of them meets all criteria to make its use generally accepted as the gold standard. In addition, recent studies suggest that different pharmacological agents and dietary interventions, or manipulative actions (e.g. massage, cold-water immersion, compression garments, athletic training) administered before, during or immediately after exercise could positively affect post-exercise recovery. There is a growing interest to provide more evidence-based data concerning the effectiveness and safety of traditional and novel interventions to affect post-exercise recovery. The goals of this research topic are to critically evaluate the current advances on mechanisms and clinical implications of post-exercise recovery, and to summarize recent experimental data from interventional studies. This knowledge may help to identify the hierarchy of key mechanisms, and recognize methods to monitor and improve post-exercise recovery in both health and disease.
Download or read book Stress Echocardiography written by Eugenio Picano and published by Springer Nature. This book was released on 2023-10-19 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the seventh edition of a long-selling book (first edition 1991) that was translated into Italian, French, Chinese, Portuguese, Spanish, English. In the last ten years, stress echocardiography has exploded in its breadth and variety of applications. From a one-fits-all approach (wall motion by 2D-echo in the patient with known or suspected coronary artery disease), the field has progressed to an omnivorous, next-generation laboratory employing a variety of technologies (from M-Mode to 2D, from pulsed, continuous, color and tissue Doppler to lung ultrasound) on patients covering the entire spectrum of severity (from elite athletes to patients with end-stage heart failure) and ages (from children with congenital heart disease to the elderly with aortic stenosis). This new edition is enriched with over 300 figures, 150 tables and video-clips. In a societal and economic climate of increasing pressure for appropriate, justified and optimized imaging, stress echocardiography offers the great advantages of being radiation-free, relatively low cost, with minimal environmental impact, and with a staggering versatility: we can get more (information) with less (cost and risk). The volume will be a tremendous aid to current best practices for all health operators who intend to use stress echocardiography and ultrasound for diagnosis and guidance of optimal management in their patients.
Download or read book Paediatric Exercise Science and Medicine written by Neil Armstrong and published by Oxford University Press, USA. This book was released on 2008-10-23 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text explains the principles of developmental exercise science, assessment of performance, the promotion of young people's health and well-being, and the clinical diagnosis and management of sports injuries in children and adolescents.
Download or read book Exercise Testing for Primary Care and Sports Medicine Physicians written by Corey H. Evans and published by Springer. This book was released on 2008-11-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book by Corey H. Evans, Russell D. White, and coauthorsis a gem. There was a time when exercise testing was largely limited to cardiologists, but no more. Ex- cise testing, which providesinformationon tness, the risk of coronarydisease, and all around vitality, is now being performed in the of ces of primary care physicians across the United States. Although there is a signi cant risk in some populations, a careful doctor who takes the trouble to become knowledgeable in exercise physiology and the pat- physiologyof coronary artery disease can use exercise testing to improve his ability to give excellent, preventive medicine. Over the years I have read many books on this subject, and even contributed to some,andthis oneratesrightup therewith the best. Likemanymultiauthoredbooks thereissomerepetition,butthisisnotallbad.Acarefulstudyofthevariouschapters willprovideadepthofknowledgethatwillcomeingoodsteadwhenproblemsarise. I can especially recommendthe chapter on exercise physiology.When the reader has mastered the material presented in this chapter, he has acquired a knowledge base so that he can become an expert in exercise testing equal to almost anyone. Over the years I have been privileged to know several of the authors and have followed their publications. Their contributions to our knowledge base in this eld havebeenconsiderable.Acquiringthisbookandbecomingfamiliarwithitscontents will set you apart in the eld of exercise testing.
