Genomes and Genes
Summary: The number of times the HEART VENTRICLES contract per unit of time, usually per minute.
Articles from Journal RESEARCH
Articles from Journal RESEARCH1
Publications378 found, 100 shown here
- Beyond heart rate variability: vagal regulation of allostatic systemsJulian F Thayer
Department of Psychology, The Ohio State University, Columbus, OH 43210, USA
Ann N Y Acad Sci 1088:361-72. 2006..Decreased vagal function and heart rate variability (HRV) were shown to be associated with increased fasting glucose and hemoglobin A1c levels, ..
- The relationship of autonomic imbalance, heart rate variability and cardiovascular disease risk factorsJulian F Thayer
The Ohio State University, Department of Psychology, 1835 Neil Avenue, Columbus, Ohio 43210, USA
Int J Cardiol 141:122-31. 2010..b>Heart rate variability (HRV) may be used to assess autonomic imbalances, diseases and mortality...
- Exercise capacity and mortality among men referred for exercise testingJonathan Myers
Division of Cardiovascular Medicine, Stanford University Medical Center and the Veterans Affairs Palo Alto Health Care System, Palo Alto, Calif CA 94304, USA
N Engl J Med 346:793-801. 2002..There is also uncertainty regarding the predictive power of exercise capacity relative to other clinical and exercise-test variables...
- Heart rate variability: origins, methods, and interpretive caveatsG G Berntson
Department of Psychology, Ohio State University, Columbus 43210, USA
Psychophysiology 34:623-48. 1997Components of heart rate variability have attracted considerable attention in psychology and medicine and have become important dependent measures in psychophysiology and behavioral medicine...
- Reliability and validity of the combined heart rate and movement sensor ActiheartS Brage
MRC Epidemiology Unit, Institute of Public Health, University of Cambridge, CB1 9NL, UK
Eur J Clin Nutr 59:561-70. 2005..The Actiheart, a combined heart rate (HR) and movement sensor, is designed to assess physical activity in populations.
- Branched equation modeling of simultaneous accelerometry and heart rate monitoring improves estimate of directly measured physical activity energy expenditureSøren Brage
Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense University, DK 5230 Odense, Denmark
J Appl Physiol (1985) 96:343-51. 2004The combination of heart rate (HR) monitoring and movement registration may improve measurement precision of physical activity energy expenditure (PAEE)...
- An epidemiological appraisal of the association between heart rate variability and particulate air pollution: a meta-analysisNicky Pieters
Hasselt University, Agoralaan Gebouw D, Diepenbeek, Belgium
Heart 98:1127-35. 2012Studies on the association between short-term exposure to ambient air pollution and heart rate variability (HRV) suggest that particulate matter (PM) exposure is associated with reductions in measures of HRV, but there is heterogeneity in ..
- Age-predicted maximal heart rate revisitedH Tanaka
Department of Kinesiology and Applied Physiology, University of Colorado at Boulder, 80309 0354, USA
J Am Coll Cardiol 37:153-6. 2001We sought to determine a generalized equation for predicting maximal heart rate (HRmax) in healthy adults.
- Fractal dynamics in physiology: alterations with disease and agingAry L Goldberger
Cardiovascular Division and Margret and H A Rey Laboratory for Nonlinear Dynamics in Medicine, Department of Medicine, Beth Israel Deaconess Medical Center Harvard Medical School, Boston, MA 02215, USA
Proc Natl Acad Sci U S A 99:2466-72. 2002..Elucidating the fractal and nonlinear mechanisms involved in physiologic control and complex signaling networks is emerging as a major challenge in the postgenomic era...
- A meta-analysis of heart rate variability and neuroimaging studies: implications for heart rate variability as a marker of stress and healthJulian F Thayer
Department of Psychology, The Ohio State University, 1835 Neil Avenue, Columbus, OH 43210, USA
Neurosci Biobehav Rev 36:747-56. 2012..Specifically, we performed a meta-analysis of recent neuroimaging studies on the relationship between heart rate variability and regional cerebral blood flow...
- Effect of forest bathing on physiological and psychological responses in young Japanese male subjectsJ Lee
Centre for Environment, Health and Field Sciences, Chiba University, 6 2 1 Kashiwanoha, Kashiwa City, Chiba Prefecture 277 0882, Japan
Public Health 125:93-100. 2011..To provide scientific evidence supporting the efficacy of forest bathing as a natural therapy by investigating its physiological benefits using biological indicators in outdoor settings...
- Neural correlates of heart rate variability during emotionRichard D Lane
Department of Psychiatry, University of Arizona, Tucson, AZ, USA
Neuroimage 44:213-22. 2009The vagal (high frequency [HF]) component of heart rate variability (HRV) predicts survival in post-myocardial infarction patients and is considered to reflect vagal antagonism of sympathetic influences...
- Claude Bernard and the heart-brain connection: further elaboration of a model of neurovisceral integrationJulian F Thayer
The Ohio State University, Department of Psychology, 1835 Neil Avenue, Columbus, OH 43210, USA
Neurosci Biobehav Rev 33:81-8. 2009..pathways between the amygdala and the sympathetic and parasympathetic medullary output neurons that modulate heart rate and thus heart rate variability...
- Natural selective attention: orienting and emotionMargaret M Bradley
Center for the Study of Emotion and Attention, University of Florida, Gainesville, Florida 32611, USA
Psychophysiology 46:1-11. 2009..Taken together, it is suggested that orienting is mediated by activation of fundamental motivational systems that have evolved to support survival...
- Low-frequency power of heart rate variability is not a measure of cardiac sympathetic tone but may be a measure of modulation of cardiac autonomic outflows by baroreflexesDavid S Goldstein
Clinical Neurocardiology Section, Clinical Neurosciences Program, Division of Intramural Research, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892 1620, USA
Exp Physiol 96:1255-61. 2011Power spectral analysis of heart rate variability has often been used to assess cardiac autonomic function; however, the relationship of low-frequency (LF) power of heart rate variability to cardiac sympathetic tone has been unclear...
- Cardiac interbeat interval dynamics from childhood to senescence : comparison of conventional and new measures based on fractals and chaos theoryS M Pikkujämsä
Division of Cardiology, Department of Internal Medicine, University of Oulu, Finland
Circulation 100:393-9. 1999..interval variability based on fractal scaling and nonlinear dynamics ("chaos theory") may give new insights into heart rate dynamics...
- A comparison of rate control and rhythm control in patients with atrial fibrillationD G Wyse
AFFIRM Clinical Trial Center, Axio Research, 2601 4th Ave, Ste 200, Seattle, WA 98121, USA
N Engl J Med 347:1825-33. 2002..In both approaches, the use of anticoagulant drugs is recommended...
- Multiscale entropy analysis of complex physiologic time seriesMadalena Costa
Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
Phys Rev Lett 89:068102. 2002There has been considerable interest in quantifying the complexity of physiologic time series, such as heart rate. However, traditional algorithms indicate higher complexity for certain pathologic processes associated with random outputs ..
- Hierarchy of individual calibration levels for heart rate and accelerometry to measure physical activitySøren Brage
MRC Epidemiology Unit, Cambridge CB1 9NL, UK
J Appl Physiol (1985) 103:682-92. 2007Combining accelerometry with heart rate (HR) monitoring may improve precision of physical activity measurement...
- Gaussian process robust regression for noisy heart rate dataOliver Stegle
University of Cambridge, Cambridge CB3 0HE, UK
IEEE Trans Biomed Eng 55:2143-51. 2008b>Heart rate data collected during nonlaboratory conditions present several data-modeling challenges. First, the noise in such data is often poorly described by a simple Gaussian; it has outliers and errors come in bursts...
- The polyvagal perspectiveStephen W Porges
University of Illinois at Chicago, Brain Body Center, Department of Psychiatry, Chicago, IL 60612, USA
Biol Psychol 74:116-43. 2007....
- Impact of resting heart rate on outcomes in hypertensive patients with coronary artery disease: findings from the INternational VErapamil-SR/trandolapril STudy (INVEST)Rainer Kolloch
Medizinische Klinik, Evangelisches Krankenhaus Bielefeld, Akademisches Lehrkrankenhaus der Universität Münster, Bielefeld, Germany
Eur Heart J 29:1327-34. 2008To determine the relationship between resting heart rate (RHR) and adverse outcomes in coronary artery disease (CAD) patients treated for hypertension with different RHR-lowering strategies.
- The pulse of inflammation: heart rate variability, the cholinergic anti-inflammatory pathway and implications for therapyJ M Huston
Department of Surgery, Division of General Surgery, Trauma, Surgical Critical Care, and Burns, Stony Brook University Medical Center, Stony Brook, NY 11794, USA
J Intern Med 269:45-53. 2011..Favourable preclinical data support the possibility that nerve stimulators may be added to the future therapeutic armamentarium, possibly replacing some drugs to inhibit cytokines...
- Heart rate variability, prefrontal neural function, and cognitive performance: the neurovisceral integration perspective on self-regulation, adaptation, and healthJulian F Thayer
Department of Psychology, The Ohio State University, 1835 Neil Avenue, Columbus, OH 43210, USA
Ann Behav Med 37:141-53. 2009In the present paper, we describe a model of neurovisceral integration in which a set of neural structures involved in cognitive, affective, and autonomic regulation are related to heart rate variability (HRV) and cognitive performance.
- Impact of depression and antidepressant treatment on heart rate variability: a review and meta-analysisAndrew H Kemp
School of Psychology, University of Sydney, Sydney, Australia
Biol Psychiatry 67:1067-74. 2010..in the likelihood of cardiac events; however, studies investigating the relationship between depression and heart rate variability (HRV) have generally focused on patients with cardiovascular disease (CVD)...
- Insights into the mechanisms and mediators of the effects of air pollution exposure on blood pressure and vascular function in healthy humansRobert D Brook
University of Michigan, 24 Frank Lloyd Wright Drive, Ann Arbor, MI 48106, USA
Hypertension 54:659-67. 2009..We aimed to determine the mechanism and air pollutant responsible. The effects of pollution on heart rate variability, blood pressure, biomarkers, and brachial flow-mediated dilatation were determined in 2 randomized, ..
- Heart rate variability: a reviewU Rajendra Acharya
Department of ECE, Ngee Ann Polytechnic, 535 Clementi Road, Singapore, Singapore 599 489
Med Biol Eng Comput 44:1031-51. 2006b>Heart rate variability (HRV) is a reliable reflection of the many physiological factors modulating the normal rhythm of the heart...
- Heart rate variability and its relation to prefrontal cognitive function: the effects of training and detrainingAnita Lill Hansen
University of Bergen, Department of Psychosocial Science, Christiesgate 12, 5015 Bergen, Norway
Eur J Appl Physiol 93:263-72. 2004The aim of the present study was to investigate the relationship between physical fitness, heart rate variability (HRV) and cognitive function in 37 male sailors from the Royal Norwegian Navy...
- Transcontinental and translational high-tech acupuncture research using computer-based heart rate and "Fire of Life" heart rate variability analysisGerhard Litscher
Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine, TCM Research Center Graz, Medical University of Graz, Auenbruggerplatz 29, Austria
J Acupunct Meridian Stud 3:156-64. 2010..Today, new computer-based methods (e.g., "Fire of Life" analysis) allow quantification of heart rate and heart rate variability during acupuncture...
- Fractal correlation properties of R-R interval dynamics and mortality in patients with depressed left ventricular function after an acute myocardial infarctionH V Huikuri
Division of Cardiology, Department of Medicine, University of Oulu, Finland
Circulation 101:47-53. 2000..The purpose of this study was to compare the prognostic power of new fractal and traditional measures of R-R interval variability as predictors of death after acute myocardial infarction...
- Physiological background of the loss of fractal heart rate dynamicsMikko P Tulppo
Merikoski Rehabilitation and Research Centre, Kasarmintie 13, PO Box 404, FIN 90101 Oulu, Finland
Circulation 112:314-9. 2005Altered fractal heart rate (HR) dynamics occur during various disease states, but the physiological background of abnormal fractal HR behavior is not well known...
- Short-term heart rate variability strongly predicts sudden cardiac death in chronic heart failure patientsMaria Teresa La Rovere
Divisione di Cardiologia e Bioingegneria, Fondazione Salvatore Maugeri, IRCCS Istituto Scientifico di Montescano, Pavia, Italy
Circulation 107:565-70. 2003The predictive value of heart rate variability (HRV) in chronic heart failure (CHF) has never been tested in a comprehensive multivariate model using short-term laboratory recordings designed to avoid the confounding effects of ..
- Heart rate as a prognostic risk factor in patients with coronary artery disease and left-ventricular systolic dysfunction (BEAUTIFUL): a subgroup analysis of a randomised controlled trialKim Fox
Royal Brompton Hospital, London, UK
Lancet 372:817-21. 2008The BEAUTIFUL study assessed the morbidity and mortality benefits of the heart rate-lowering agent ivabradine...
- Ivabradine and outcomes in chronic heart failure (SHIFT): a randomised placebo-controlled studyKarl Swedberg
Department of Emergency and Cardiovascular Medicine, Sahlgrenska Academy, University of Gothenburg, Goteborg, Sweden
Lancet 376:875-85. 2010Chronic heart failure is associated with high mortality and morbidity. Raised resting heart rate is a risk factor for adverse outcomes...
- Glucagon-like peptide 1 can directly protect the heart against ischemia/reperfusion injuryAmal K Bose
The Hatter Institute for Cardiovascular Studies, University College London Hospital and Medical School, Grafton Way, London WC1E, UK
Diabetes 54:146-51. 2005..This protection appears to involve activating multiple prosurvival kinases. This finding may represent a new therapeutic potential for this class of drug currently undergoing clinical trials in the treatment of type 2 diabetes...
- Heart rate variability and myocardial infarction: systematic literature review and metanalysisE Buccelletti
Department of Emergency Medicine, Catholic University of the Sacred Hearth, Rome, Italy
Eur Rev Med Pharmacol Sci 13:299-307. 2009b>Heart rate, measured as beat-to-beat intervals, is not constant and varies in time. This property is known as heart rate variability (HRV) and it has been investigated in several diseases, including myocardial infarction (MI)...
- Heart-rate profile during exercise as a predictor of sudden deathXavier Jouven
Service de cardiologie, Faculté René Descartes, Universite Paris 5, Hopital Europeen Georges Pompidou, Paris, France
N Engl J Med 352:1951-8. 2005Changes in heart rate during exercise and recovery from exercise are mediated by the balance between sympathetic and vagal activity...
- Properties of ivabradine-induced block of HCN1 and HCN4 pacemaker channelsA Bucchi
Laboratory of Molecular Physiology and Neurobiology, Department of Biomolecular Sciences and Biotechnology, University of Milano, Italy
J Physiol 572:335-46. 2006Ivabradine is a 'heart rate-reducing' agent able to slow heart rate, without complicating side-effects. Its action results from a selective and specific block of pacemaker f-channels of the cardiac sinoatrial node (SAN)...
- Impact of heart rate on central aortic pressures and hemodynamics: analysis from the CAFE (Conduit Artery Function Evaluation) study: CAFE-Heart RateBryan Williams
Department of Cardiovascular Sciences, University of Leicester School of Medicine, and the Leicester NIHR Cardiovascular Biomedical Research Unit, Leicester, UK
J Am Coll Cardiol 54:705-13. 2009..The present study examined the importance of heart rate (HR) as a determinant of this effect.
- Why socially deprived populations have a faster resting heart rate: impact of behaviour, life course anthropometry, and biology--the RECORD Cohort StudyBasile Chaix
INSERM U707, Paris, France
Soc Sci Med 73:1543-50. 2011Although studies have shown that resting heart rate (RHR) is predictive of cardiovascular morbidity/mortality, few studies focused on the epidemiology and social aetiology of RHR...
- Longitudinal modeling of the relationship between age and maximal heart rateRonald L Gellish
School of Health Sciences, Oakland University, Rochester, MI 44309 4482, USA
Med Sci Sports Exerc 39:822-9. 2007Maximal heart rate (HRmax)-prediction equations based on a person's age are frequently used in prescribing exercise intensity and other clinical applications...
- Masked presentations of emotional facial expressions modulate amygdala activity without explicit knowledgeP J Whalen
Psychiatric Neuroimaging Research Group and Nuclear Magnetic Resonance Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02115, USA
J Neurosci 18:411-8. 1998..This study, using fMRI in conjunction with masked stimulus presentations, represents an initial step toward determining the role of the amygdala in nonconscious processing...
- An updated computational model of rabbit sinoatrial action potential to investigate the mechanisms of heart rate modulationStefano Severi
Biomedical Engineering Laboratory DEIS, University of Bologna, Via Venezia 52, 47521 Cesena, Italy
J Physiol 590:4483-99. 2012..SAN AP model, based on available experimental data, in an attempt to reproduce physiological and pharmacological heart rate modulation...
- The physiological origin of task-evoked systemic artefacts in functional near infrared spectroscopyEvgeniya Kirilina
Free Univ Berlin, Habelschwerdter Allee 45, 14195 Berlin, Germany
Neuroimage 61:70-81. 2012..We used complementary fNIRS, fMRI, MR-angiography and peripheral physiological measurements (blood pressure, heart rate, skin conductance and skin blood flow) to study activation in the frontal lobe during a continuous performance ..
- Cardiovascular effects of secondhand smoke: nearly as large as smokingJoaquin Barnoya
Center for Tobacco Control Research and Education, Cardiovascular Research Institute, and Division of Cardiology, University of California, San Francisco 94143 1390, USA
Circulation 111:2684-98. 2005..This effect is larger than one would expect on the basis of the risks associated with active smoking and the relative doses of tobacco smoke delivered to smokers and nonsmokers...
- Cardiovascular effects of human insular cortex stimulationS M Oppenheimer
Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205
Neurology 42:1727-32. 1992..These findings may be of relevance in predicting the autonomic effects of stroke in humans and in the explanation of sudden unexpected epileptic death...
- A coupled SYSTEM of intracellular Ca2+ clocks and surface membrane voltage clocks controls the timekeeping mechanism of the heart's pacemakerEdward G Lakatta
Laboratory of Cardiovascular Science, Gerontology Research Center, National Institute on Aging NIH, 5600 Nathan Shock Dr, Baltimore, MD 21224 6825, USA
Circ Res 106:659-73. 2010..This review examines evidence that forms the basis of this coupled-clock system concept in cardiac SANCs...
- Association between arterial stiffness and atherosclerosis: the Rotterdam StudyN M van Popele
Department of Epidemiology and Biostatistics, Erasmus Medical Center Rotterdam (Netherlands
Stroke 32:454-60. 2001..Data were analyzed by ANCOVA with adjustment for age, sex, mean arterial pressure, and heart rate. RESULTS: Both aortic and common carotid artery stiffness were found to have a strong positive association with ..
- Intervention to lower household wood smoke exposure in Guatemala reduces ST-segment depression on electrocardiogramsJohn McCracken
Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, USA
Environ Health Perspect 119:1562-8. 2011..RESPIRE (Randomized Exposure Study of Pollution Indoors and Respiratory Effects) was a randomized trial of a chimney woodstove that reduces wood smoke exposure...
- Acute effect of a single high-fat meal on forearm blood flow, blood pressure and heart rate in healthy male Asians and Caucasians: a pilot studyChumjit Bui
Department of Health Promotion and Education, School of Public Health, Loma Linda University, Loma Linda, CA, USA
Southeast Asian J Trop Med Public Health 41:490-500. 2010..These findings suggest that a single HF meal may contribute to the detrimental effects on vascular health in Asian males and raises speculation regarding the cumulative impact of a chronic HF diet in this population...
- The role of vagal function in the risk for cardiovascular disease and mortalityJulian F Thayer
Department of Psychology, The Ohio State University, Columbus, OH 43210, USA
Biol Psychol 74:224-42. 2007..Using a broad range of indicators of vagal function including resting heart rate, heart rate recovery, heart rate variability, and baroreflex sensitivity we show that decreased vagal function ..
- Impaired exercise performance in the heat is associated with an anticipatory reduction in skeletal muscle recruitmentRoss Tucker
MRC UCT Bioenergetics of Exercise Research Unit, University of Cape Town, Sports Science Institute of South Africa, PO Box 115, 7725, Newlands, South Africa
Pflugers Arch 448:422-30. 2004..during self-paced exercise in the heat occurs before there is any abnormal increase in rectal temperature, heart rate or perception of effort...
- Vagal tone dominates autonomic control of mouse heart rate at thermoneutralityS J Swoap
Dept of Biomedical Sciences, Florida State University, Tallahassee, FL 32306 4300, USA
Am J Physiol Heart Circ Physiol 294:H1581-8. 2008It is generally accepted that cardiac sympathetic tone dominates the control of heart rate (HR) in mice...
- Cardiovascular, electrodermal, and respiratory response patterns to fear- and sadness-inducing filmsSylvia D Kreibig
Department of Psychology, Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland
Psychophysiology 44:787-806. 2007Responses to fear- and sadness-inducing films were assessed using a broad range of cardiovascular (heart rate, T-wave amplitude, low- and high-frequency heart rate variability, stroke volume, preejection period, left-ventricular ejection ..
- Nocturnal hypertension in mice consuming a high fructose dietVera Farah
Boonshoft School of Medicine of Wright State University, Department of Pharmacology and Toxicology, Dayton, OH 45401, USA
Auton Neurosci 130:41-50. 2006To investigate the effect of fructose consumption on the light/dark pattern of blood pressure, heart rate and autonomic neural function in mice.
- Randomized trial of rate-control versus rhythm-control in persistent atrial fibrillation: the Strategies of Treatment of Atrial Fibrillation (STAF) studyJorg Carlsson
Department of Internal Medicine II, Klinikum Lippe Detmold, Röntgenstrasse 18, D 32760 Detmold, Germany
J Am Coll Cardiol 41:1690-6. 2003....
- Effects of cardiac autonomic dysfunction on mortality risk in the Action to Control Cardiovascular Risk in Diabetes (ACCORD) trialRodica Pop-Busui
Division of Metabolism, Endocrinology and Diabetes, University of Michigan, Ann Arbor, Michigan, USA
Diabetes Care 33:1578-84. 2010....
- Plasma leptin concentrations and cardiac autonomic nervous system in healthy subjects with different body weightsG Paolisso
Department of Geriatric Medicine and Metabolic Diseases II, University of Naples, Italy
J Clin Endocrinol Metab 85:1810-4. 2000Previous studies have shown that leptin stimulates sympathetic nervous system; heart rate variability (HRV) is a widely used technique for assessing the sympathovagal balance at the cardiac level...
- An autonomic flexibility-neurovisceral integration model of anxiety and cardiac vagal toneBruce H Friedman
Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 0436, USA
Biol Psychol 74:185-99. 2007Research on heart rate variability (HRV), cardiac vagal tone, and their relationship to anxiety is reviewed in the context of the autonomic flexibility and neurovisceral integration models of adaptive functioning...
- Differential association of cognitive and somatic depressive symptoms with heart rate variability in patients with stable coronary heart disease: findings from the Heart and Soul StudyPeter De Jonge
Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
Psychosom Med 69:735-9. 2007To determine if depression associated with low heart rate variability (HRV) in patients post myocardial infarction (MI), but not in patients with stable coronary heart disease (CHD), may be the result of differential associations of ..
- Depression, comorbid anxiety disorders, and heart rate variability in physically healthy, unmedicated patients: implications for cardiovascular riskAndrew H Kemp
School of Psychology, University of Sydney, Sydney, New South Wales, Australia
PLoS ONE 7:e30777. 2012There is evidence that heart rate variability (HRV) is reduced in major depressive disorder (MDD), although there is debate about whether this effect is caused by medication or the disorder per se...
- Increased heart rate and reduced heart-rate variability are associated with subclinical inflammation in middle-aged and elderly subjects with no apparent heart diseaseAhmad Sajadieh
Department of Cardiology, Copenhagen University Hospital of Bispebjerg, Bispebjerg Bakke 23, Copenhagen NV 2400, Denmark
Eur Heart J 25:363-70. 2004Elevation of inflammation markers, high heart rate, and reduced heart-rate variability are all strong markers of mortality in a broad spectrum of patients. The association between these markers has not been clarified thoroughly...
- Optimization and validation of a fully-integrated pulse sequence for modified look-locker inversion-recovery (MOLLI) T1 mapping of the heartDaniel R Messroghli
Cardiac MRI Unit, Franz Volhard Klinik, Charite Campus Buch, Universitatsmedizin Berlin, HELIOS Klinikum Berlin, Germany
J Magn Reson Imaging 26:1081-6. 2007..To optimize and validate a fully-integrated version of modified Look-Locker inversion-recovery (MOLLI) for clinical single-breathhold cardiac T1 mapping...
- Effect of fish oil on heart rate in humans: a meta-analysis of randomized controlled trialsDariush Mozaffarian
Department of Medicine, Brigham and Women s Hospital, Harvard Medical School, Boston, MA, USA
Circulation 112:1945-52. 2005The effect of fish oil on heart rate (HR), a major risk factor for sudden death, is not well established. We calculated this effect in a meta-analysis of randomized, double-blind, placebo-controlled trials in humans.
- Heart-rate turbulence after ventricular premature beats as a predictor of mortality after acute myocardial infarctionG Schmidt
Erste Medizinische Klinik, Technischen Universitat Munchen, Germany
Lancet 353:1390-6. 1999..Thus, establishment of a new powerful method for risk prediction independent of the available stratifiers is of considerable practical value...
- The relationship between heart rate variability and inflammatory markers in cardiovascular diseasesAlexander Haensel
Department of General Internal Medicine, University Hospital Berne, Switzerland
Psychoneuroendocrinology 33:1305-12. 2008Recent evidence implicates a cholinergic anti-inflammatory pathway. Because vagus nerve activity mediates some heart rate variability (HRV), this qualitative review examines the literature concerning circulating cytokines and HRV in ..
- Heart rate variability explored in the frequency domain: a tool to investigate the link between heart and behaviorNicola Montano
Department of Clinical Science, Luigi Sacco Hospital, University of Milan, Milan, Italy
Neurosci Biobehav Rev 33:71-80. 2009..Spectral analysis of cardiovascular signal variability, and in particular of RR period (heart rate variability, HRV), is a widely used procedure to investigate autonomic cardiovascular control and/or target ..
- Effects of resting heart rate variability on performance in the P300 brain-computer interfaceTobias Kaufmann
Department of Psychology I, University of Wurzburg, Marcustrasse 9 11, Wurzburg, Germany
Int J Psychophysiol 83:336-41. 2012..Such inhibitory control has been closely linked to peripheral physiological parameters, such as heart rate variability (HRV)...
- Modulation of blood pressure by central melanocortinergic pathwaysJerry R Greenfield
University of Cambridge Metabolic Research Laboratories, Addenbrooke s Hospital, Cambridge, United Kingdom
N Engl J Med 360:44-52. 2009..Central melanocortinergic signaling is implicated in the control of energy balance and blood pressure in rodents, but there is no information regarding such an association with blood pressure in humans...
- The utility of low frequency heart rate variability as an index of sympathetic cardiac tone: a review with emphasis on a reanalysis of previous studiesGustavo A Reyes del Paso
Department of Psychology, University of Jaen, Jaen, Spain
Psychophysiology 50:477-87. 2013This article evaluates the suitability of low frequency (LF) heart rate variability (HRV) as an index of sympathetic cardiac control and the LF/high frequency (HF) ratio as an index of autonomic balance...
- The effects of [omega]3 fatty acids and coenzyme Q10 on blood pressure and heart rate in chronic kidney disease: a randomized controlled trialTrevor A Mori
University of Western Australia and the Cardiovascular Research Centre, Perth, Western Australia
J Hypertens 27:1863-72. 2009..Omega-3 fatty acids (omger3FA) protect against CVD via improvements in blood pressure, heart rate, vascular reactivity and serum lipids. Coenzyme Q(10) (CoQ) may improve blood pressure and vascular function...
- Genesis and regulation of the heart automaticityMatteo E Mangoni
Institute of Functional Genomics, Department of Physiology, Centre National de la Recherche Scientifique UMR5203, INSERM U661, University of Montpellier I and II, Montpellier, France
Physiol Rev 88:919-82. 2008..been indicated as an important mechanism for promoting automaticity at rest as well as for acceleration of the heart rate under sympathetic nerve input...
- More frequent partner hugs and higher oxytocin levels are linked to lower blood pressure and heart rate in premenopausal womenKathleen C Light
Department of Psychiatry, University of North Carolina, CB 7175 Medical Building A, Chapel Hill, NC 27599 7175, USA
Biol Psychol 69:5-21. 2005..Higher baseline OT before partner contact was associated with lower BP and heart rate, and met criteria to be a partial mediator of the lower resting BP shown by women reporting more frequent hugs (..
- Ambient temperature, air pollution, and heart rate variability in an aging populationCizao Ren
Exposure, Epidemiology, and Risk Program, Harvard School of Public Health, Boston, Massachusetts 02215, USA
Am J Epidemiol 173:1013-21. 2011..The authors examined whether temperature was associated with heart rate variability (HRV) in a Boston, Massachusetts, study population and whether such associations were modified by ..
- Chronic heart rate reduction by ivabradine prevents endothelial dysfunction in dyslipidaemic miceA Drouin
Montreal Heart Institute, Research Center, Faculty of Medicine, Department of Surgery, Universite de Montreal, Montreal, Quebec, Canada
Br J Pharmacol 154:749-57. 2008High resting heart rate is a predictor for total and cardiovascular mortality independent of other risk factors in patients with coronary artery disease...
- Toward understanding respiratory sinus arrhythmia: relations to cardiac vagal tone, evolution and biobehavioral functionsPaul Grossman
Department of Psychosomatic and Internal Medicine, Psychophysiology Research Laboratory, University of Basel Hospital, Hebelstrasse 2, CH 4031 Basel, Switzerland
Biol Psychol 74:263-85. 2007..Finally, a recent hypothesis is expanded upon, in which RSA plays a primary role in regulation of energy exchange by means of synchronizing respiratory and cardiovascular processes during metabolic and behavioral change...
- Predicting survival in heart failure case and control subjects by use of fully automated methods for deriving nonlinear and conventional indices of heart rate dynamicsK K Ho
Cardiovascular Division, Beth Israel Deaconess Medical Center, Boston, Mass 02215 5491, USA
Circulation 96:842-8. 1997Despite much recent interest in quantification of heart rate variability (HRV), the prognostic value of conventional measures of HRV and of newer indices based on nonlinear dynamics is not universally accepted.
- Ventral medial prefrontal cortex and cardiovagal control in conscious humansSavio W Wong
Neurovascular Research Laboratory, School of Kinesiology, The University of Western Ontario, London, ON, Canada N6A 3K7
Neuroimage 35:698-708. 2007..Seventeen healthy individuals performed graded handgrip exercise while heart rate (HR) and cortical activity were recorded...
- Accuracy and validity of a combined heart rate and motion sensor for the measurement of free-living physical activity energy expenditure in adults in CameroonFelix K Assah
Medical Research Council Epidemiology Unit, Institute of Metabolic Science, Addenbrooke s Hospital, Cambridge, UK
Int J Epidemiol 40:112-20. 2011..Combined heart rate (HR) and movement monitoring make it possible to objectively measure physical activity in free-living ..
- [Geometric index of heart rate variability in chronic obstructive pulmonary disease]T Dias de Carvalho
Departamento de Fisioterapia, Universidade Estadual Paulista, Presidente Prudente, SP, Brazil
Rev Port Pneumol 17:260-5. 2011It was already evidenced decreased heart rate variability (HRV) in chronic obstructive pulmonary disease (COPD) patients at rest.
- Is heart rate variability related to memory performance in middle-aged men?Amit Jasvant Shah
Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30322, USA
Psychosom Med 73:475-82. 2011b>Heart rate variability (HRV), a measure of autonomic function, has been associated with cognitive function, but studies are conflicting. Previous studies have also not controlled for familial and genetic influences.
- Health benefits of a pedometer-based physical activity intervention in sedentary workersCatherine B Chan
Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, PE, Canada C1A 4P3
Prev Med 39:1215-22. 2004..Here, we examined the effects of a pedometer-based physical activity intervention (Prince Edward Island-First Step Program, PEI-FSP) on activity and specific health indices in 106 sedentary workers...
- Circadian profile of cardiac autonomic nervous modulation in healthy subjects: differing effects of aging and gender on heart rate variabilityHendrik Bonnemeier
Medizinische Kinik II, Medizinische Universitat zu Lubeck, Lubeck, Germany
J Cardiovasc Electrophysiol 14:791-9. 2003Circadian Profile of Heart Rate Variability.
- Dronedarone for maintenance of sinus rhythm in atrial fibrillation or flutterBramah N Singh
Cardiology Division, Veterans Affairs Greater Los Angeles Healthcare System and the David Geffen School of Medicine at UCLA, Los Angeles, CA 90073, USA
N Engl J Med 357:987-99. 2007..Dronedarone is a new antiarrhythmic agent pharmacologically related to amiodarone but developed to reduce the risk of side effects...
- Heart rate variability as a measure of autonomic regulation of cardiac activity for assessing stress and welfare in farm animals -- a reviewEberhard von Borell
Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle Wittenberg, 06108 Halle, Germany
Physiol Behav 92:293-316. 2007Measurement of heart rate variability (HRV) is a non-invasive technique that can be used to investigate the functioning of the autonomic nervous system, especially the balance between sympathetic and vagal activity...
- Comparison of PAEE from combined and separate heart rate and movement models in childrenKirsten Corder
Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
Med Sci Sports Exerc 37:1761-7. 2005Accurate measurement of physical activity in children is a challenge. Combining physiological (e.g., heart rate (HR)) and body movement registration (e.g., accelerometry) may overcome limitations with either method used alone...
- Acute HPA axis responses, heart rate, and mood changes to psychosocial stress (TSST) in humans at different times of dayBrigitte M Kudielka
Department of Behavioral Sciences, Swiss Federal Institute of Technology ETH, Turnerstr 1, CH 8092 Zurich, Switzerland
Psychoneuroendocrinology 29:983-92. 2004..02), total plasma cortisol (p < 0.0001), and marginally ACTH (p = 0.09). Stress-related heart rate increases did not differ between groups (p = n.s.)...
- High sensitivity of human melatonin, alertness, thermoregulation, and heart rate to short wavelength lightChristian Cajochen
Centre for Chronobiology, Psychiatric University Clinic, Wilhelm Kleinstr 27, CH 4025 Basel, Switzerland
J Clin Endocrinol Metab 90:1311-6. 2005..Here, we report that the alerting response of light as well as its effects on thermoregulation and heart rate are also wavelength dependent...
- Bioengineering assessment of acupuncture, part 7: heart rate variabilityGerhard Litscher
Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine and Traditional Chinese Medicine TCM Research Center, Medical University of Graz, Graz, Austria
Crit Rev Biomed Eng 35:183-95. 2007In the seventh part of this review article, preliminary research on the topic of acupuncture and heart rate variability is described. Heart rate variability (HRV) refers to the beat-to-beat alterations in heart rate...
- Vagal nerve stimulation markedly improves long-term survival after chronic heart failure in ratsMeihua Li
Department of Cardiovascular Dynamics, Cardiovascular Center Research Institute, Suita, Japan
Circulation 109:120-4. 2004Diminished cardiac vagal activity and higher heart rate predict a high mortality rate of chronic heart failure (CHF) after myocardial infarction...
- Cardiovascular and autonomic phenotype of db/db diabetic miceDanielle Senador
Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA
Exp Physiol 94:648-58. 2009..Parameters measured were mean arterial pressure (MAP), heart rate (HR) and their variabilities...
- Effect of aging on gender differences in neural control of heart rateT B Kuo
Institute of Neuroscience, Tzu Chi College of Medicine and Humanities, Hualien 970, Taiwan, Republic of China
Am J Physiol 277:H2233-9. 1999To clarify the influence of gender on sympathetic and parasympathetic control of heart rate in middle-aged subjects and on the subsequent aging process, heart rate variability (HRV) was studied in normal populations of women (n = 598) and ..
- Dietary fish oil reduces pacemaker current and heart rate in rabbitArie O Verkerk
Heart Failure Research Center, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Heart Rhythm 6:1485-92. 2009Omega-3 polyunsaturated fatty acids (omega3-PUFAs) from fish oil (FO) reduce heart rate in humans. The mechanism underlying this cardioprotective effect of FO is unknown.
- An advanced detrending method with application to HRV analysisMika P Tarvainen
University of Kuopio, Department of Applied Physics, Finland
IEEE Trans Biomed Eng 49:172-5. 2002An advanced, simple to use, detrending method to be used before heart rate variability analysis (HRV) is presented...
- Effects of different doses of physical activity on cardiorespiratory fitness among sedentary, overweight or obese postmenopausal women with elevated blood pressure: a randomized controlled trialTimothy S Church
Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge 70808 4124, USA
JAMA 297:2081-91. 2007..However, a poor understanding of the physical activity-fitness dose response relation remains...
- Software for advanced HRV analysisJuha Pekka Niskanen
Department of Applied Physics, University of Kuopio, P O Box 1627, FIN 70211 Kuopio, Finland
Comput Methods Programs Biomed 76:73-81. 2004A computer program for advanced heart rate variability (HRV) analysis is presented. The program calculates all the commonly used time- and frequency-domain measures of HRV as well as the nonlinear Poincaré plot...
- A single intravenous dose of ivabradine, a novel I(f) inhibitor, lowers heart rate but does not depress left ventricular function in patients with left ventricular dysfunctionMatthias Manz
Department of Cardiology, Marienhof Hospital, Koblenz, Germany
Cardiology 100:149-55. 2003This randomized, single-blind, placebo-controlled study investigated the effect of ivabradine, a novel heart rate-lowering agent, on echocardiographic indices of left ventricular (LV) systolic function in patients with regional (coronary ..
- Detection of driver drowsiness using wavelet analysis of heart rate variability and a support vector machine classifierGang Li
Department of Electronic Engineering, Pukyong National University, Busan 608 737, Korea
Sensors (Basel) 13:16494-511. 2013Driving while fatigued is just as dangerous as drunk driving and may result in car accidents. Heart rate variability (HRV) analysis has been studied recently for the detection of driver drowsiness...
- Heart rate variability: measurement and clinical utilityRobert E Kleiger
Washington University School of Medicine, St Louis, MO, USA
Ann Noninvasive Electrocardiol 10:88-101. 2005..g., exercise or drugs. RR interval variability is useful for assessing risk of cardiovascular death or arrhythmic events, especially when combined with other tests, e.g., left ventricular ejection fraction or ventricular arrhythmias...
- Relationship between spectral components of cardiovascular variabilities and direct measures of muscle sympathetic nerve activity in humansM Pagani
Centro Ricerche Cardiovascolari, CNR, Medicina Interna II, Ospedale L Sacco, Universita di Milano, Italy
Circulation 95:1441-8. 1997..Spectral analysis of RR interval and systolic arterial pressure variabilities may provide indirect markers of the balance between sympathetic and vagal cardiovascular control...
- Understanding/ Treating Neuropsychiatric Symptoms of Pediatric Physical IllnessEva Szigethy; Fiscal Year: 2009..abstract_text> ..
- Role of Chromogranin A in Metabolic SyndromeSushil K Mahata; Fiscal Year: 2013..We have identified that chromogranin A (Chga)-derived peptide, catestatin (CST), lowers blood pressure (BP) and heart rate (HR) by inhibiting release of catecholamines...
- Effective treatment of sleep apnea in prediabetes to reduce cardiometabolic riskEsra Tasali; Fiscal Year: 2010..pressure (BP) will be recorded continuously over 24hrs and cardiac sympathetic activity will be assessed by heart rate variability of ambulatory EKG recordings...
- Peroxynitrite Decomposition Catalyst and Nitric Oxide Donor for EndotoxemiaGARRY JOHN SOUTHAN; Fiscal Year: 2012..Aim #4: Over a 4 h period, we will monitor peripheral arterial blood pressure and heart rate in anesthetized endotoxinemic mice treated with vehicle control or R-100 administered 1 h after LPS challenge, ..
- The influence of air pollution mixtures on biomarkers of airway oxidative stressRoby Greenwald; Fiscal Year: 2013..monitor activity intensity using a wearable device that contains a motion-sensing accelerometer and heart rate monitor...
- Autonomic and Antihypertensive Actions of Neuronal CGRP/RAMP1 ReceptorsMark W Chapleau; Fiscal Year: 2013..Blood pressure, heart rate, locomotor activity and an array of autonomic indices will be measured in conscious mice implanted with blood ..
- Efficacy of Yoga for Treatment-Resistant PTSDBessel Van der Kolk; Fiscal Year: 2010..of affect and mood regulation, 4) body awareness, 5) quality of life, 6) health care utilization, 7) resting heart rate (HR) and heart rate variability (HRV). 1 Saper, R.B., Eisenberg, D.M., Davis, R.B., Culpepper, L., Phillips, R.S...
- ECG-derived cardiopulmonary coupling biomarkers of sleep, sleep-breathing, and caRobert J Thomas; Fiscal Year: 2010..From the ECG, we extract heart rate variability (HRV) and ECG R-wave amplitude fluctuations associated with respiratory tidal volume changes (the ..
- Early Life Conditions, Survival, and Health: A Pedigree-Based Population StudyKen R Smith; Fiscal Year: 2013..sulfate (DHEAS &DHEA), fasting glucose and insulin resistance, telomere length, blood pressure, heart rate, grip strength, forced expiratory volume (FEV1), and BMI...
- Mechanims of CNS Autonomic Regulation by EAJohn C Longhurst; Fiscal Year: 2013..anesthetized cats to stimulate 5- hydroxytryptamine-3 (5-HT3) cardiopulmonary receptors to reflexly lower heart rate and blood pressure through pathways in the medial nucleus tractus solitarii (mNTS) and nucleus ambiguus (NA)...
- Computer/Electrical EngineeringTheodore Raphan; Fiscal Year: 2011..5. Generate apparatus for heart rate and blood pressure measurements in the rat to determine the impact of the vestibule-sympathetic reflex during ..
- Use of Interactive Gaming for Enhanced Function after Spinal Cord InjuryBEATRICE JENNY KIRATLI; Fiscal Year: 2011..The purpose will be to evaluate muscles used, active range of motion, forces generated, heart rate, and other measurable attributes of the actions used during interactive video gaming play...
- Respiratory and autonomic plasticity following intermittent hypoxiaJASON HAROLD MATEIKA; Fiscal Year: 2012..nervous system activity (PNSA) could ultimately lead to persistent increases in blood pressure and heart rate abnormalities...
- PARP Inhibitor and Redox Catalyst for Ventilatory TraumaPrakash Jagtap; Fiscal Year: 2013..We will monitor hemodynamic status by tracking heart rate, mean arterial pressure, and arterial pulse pressure variation...
- Targeting thermoreceptors for therapeutic hypothermiaSean P Marrelli; Fiscal Year: 2012..Multiple physiologic variables (such as core temperature, blood pressure, and heart rate) will be collected by chronic catheterization or telemetry...
- Respiratory motor control and blood pressure regulation after spinal cord injuryALEXANDER VLADIMIROVICH OVECHKIN; Fiscal Year: 2013..In addition, we will use continuous beat-to-beat recording of systemic arterial blood pressure, heart rate, cardiac output, and the measurements of blood catecholamines level during orthostatic stress test...
- Optimal Selective Thyroid Hormone Analogs for Metabolic SyndromeJohn D Baxter; Fiscal Year: 2010..While TH excess leads to deleterious effects such as elevated heart rate, arrythmias and muscle and bone catabolism there are beneficial effects such as reduced cholesterol and fat loss...
- Arrhythmia Mechanisms in Sarcomeric CardiomyopathiesBjorn C Knollmann; Fiscal Year: 2012..AIM 2: To determine the effect of myofilament Ca2+ sensitization on the ventricular action potential and its heart rate dependence AIM 3: To determine the effect of myofilament Ca2+ sensitization on cell-cell coupling and on ..
- Neural Control of the Circulation: Sex and HypertensionBaojian Xue; Fiscal Year: 2013..conducting experiments to answer these questions include: chronic telemetric measurements of blood pressure and heart rate in rats and mice, in vitro imaging of rat paraventricular nucleus neurons to determine the effects of estrogen ..
- A Pilot Study of Yoga for Breathing and Quality of Life of Lung Cancer PatientsJUDITH MARIE FOULADBAKHSH; Fiscal Year: 2013..spirometry, pulse oximetry, dyspnea, respiration rate, 6-Minute Walk test);oxygenation (pulse oximetry;heart rate);stress (Perceived Stress Scale;diurnal salivary cortisol);mood (Profile of Mood States-Brief);sleep (Pittsburgh ..
- Purinergic Regulation of Bone MetabolismBruce Neil Cronstein; Fiscal Year: 2013The purine nucleoside adenosine regulates such physiologic functions as heart rate, vasodilation and inflammation and receptors for adenosine have been targeted for such diverse conditions as Parkinson's Disease and, indirectly, ..
- Disruption of Autonomic Pathways in Left Atrium by Inhibition of G ProteinsAlan H Kadish; Fiscal Year: 2010..The autonomic nervous system regulates critical cardiac parameters such as excitability, heart rate, force of contraction, conduction velocity and refractoriness...
- Perinatal Assessment of At-Risk PopulationsWilliam P Fifer; Fiscal Year: 2013..In addition to our battery of existing measurements of respiration, heart rate, blood pressure, movement, EEG and temperature, we propose to incorporate new state of the art measures of ..
- PTSD Hyperarousal Symptoms Treated with Physiological Stress ManagementWALTON THOMPSON ROTH; Fiscal Year: 2011..Measurements will be both physiological, using 24 hour ambulatory monitoring of skin conductance, heart rate, and physical activity during waking and sleeping, and psychological, using self-reports and clinician ..
- Cardiac Autonomic Neuropathy and Myocardial Dysfunction in Type 1 DiabetesRODICA BUSUI POP-BUSUI; Fiscal Year: 2013..activation will be determined by positron emission tomography (PET) with [11C]meta-hydroxyephedrine ([11C]HED), heart rate variability, and 24-hour blood pressure monitoring in patients with T1DM (5-10 years'diabetes duration)...
- Developmental defects in serotonin neurons and the response to O2 and CO2George B Richerson; Fiscal Year: 2011..We will expose adult and neonatal mice to hypercapnia and hypoxia, and measure ventilation, heart rate, motor activity and EEG...
- Reducing Care-Resistant Behaviors During Oral Hygiene in Persons with DementiaRita A Jablonski; Fiscal Year: 2013..These responses are both autonomic (e.g. elevated heart rate, sweating) and behavioral (e.g. moving away, attacking)...
- Disruption of Autonomic Pathways in the Left Atrium by Inhibition of G-proteinsRishi Arora; Fiscal Year: 2013..The autonomic nervous system regulates critical cardiac parameters such as excitability, heart rate, force of contraction, conduction velocity and refractoriness...
- Mechanisms and Therapeutics for Rett SyndromeMriganka Sur; Fiscal Year: 2013..physiology of the animals along metrics of maturation in central control systems, including locomotion, heart rate, respiration, and survival rates...
- AREA: Rapamycin, ambient temperature, and longevitySteven J Swoap; Fiscal Year: 2010..We propose to use indirect calorimetry and a telemetry-based heart rate and body temperature detection system to measure these physiological variables in mice at different ambient ..
- Atrial Fibrillation in Hyperthyroidism: Active Antibodies to Autonomic ReceptorsDAVID KEM; Fiscal Year: 2013..PUBLIC HEALTH RELEVANCE: The presence of an irregular heart rate (atrial fibrillation) is associated with 1/3 of the strokes in the general population and is related to ..
- NEUROPHYSIOLOGY OF PARASYMPATHETIC CARDIAC NEURONSDavid Mendelowitz; Fiscal Year: 2013..CIH impairs the baroreflex control of heart rate and diminishes cardioprotective parasympathetic activity to the heart and current research indicates these ..
- Cardiovascular Effects of Ultrafine Particles in Genetically Susceptible SubjectsMark W Frampton; Fiscal Year: 2010..Systemic vascular function will be assessed using blood pressure and heart rate, forearm plethysmography and reactive hyperemia, platelet activation, and circulating microparticles...
- Nicotine Modulation of Parasympathetic Cardiac NeuronsDavid Mendelowitz; Fiscal Year: 2013..Electrical or mechanical stimulation of the trigeminal nerve evokes a dramatic decrease in heart rate in animals including man, and has often been termed the `trigeminocardiac reflex'in the clinical literature,..
- Stress and Subclinical Cardio-Metabolic Disease in Police: A Longitudinal StudyJohn M Violanti; Fiscal Year: 2013..Markers of disease include blood pressure;laboratory measurement of lipids, glucose, and insulin;heart rate variability to assess autonomic nervous system function;ultrasound imaging studies to measure carotid artery ..
- Effect of Baclofen on Alcohol Cue-Elicited Urges to Drink and SmokeGEORGE ANTHONY KENNA; Fiscal Year: 2011..Attention to the sight and smell of cues and psychophysiological responses (heart rate, mean arterial pressure and salivation changes) will also be assessed during the CR experiment...
- Sex Differences in Myocardial Ischemia Triggered by Emotional Factors after MIViola Vaccarino; Fiscal Year: 2010..sex differences in ischemia induced by emotional stress, including differences in hemodynamic (blood pressure, heart rate), neurobiological (cortisol and autonomic nervous system) and inflammatory responses to the stressful challenge...
- Lead, Cadmium,Arsenic, and cardiovascular risk in childrenEliseo Guallar; Fiscal Year: 2011..factor alpha [TNF-alpha]) in children;and 3) Exposures, cadmium, or arsenic are inversely associated with heart rate variability in children...
- Stress and PTSD Among OEF/OIF Soldiers &Their SpousesCatherine M Caska; Fiscal Year: 2012..Specifically, it will assess the association of PTSD and cardiovascular reactivity (CVR;i.e., increases in heart rate and blood pressure) during potentially stressful marital interactions...
- Treatment Implications of Trauma Memory Modulation for PTSD & Alcohol DependenceMichael E Saladin; Fiscal Year: 2010..Measures of subjective craving, emotion, physiological arousal (e.g., heart rate) and stress (e.g...
- Hostility, PTSD and Physical Health Risk FactorsJean C Beckham; Fiscal Year: 2013..Findings that ambulatory heart rate is higher, and blood pressure recovery to a stressful task is slower in hostile veterans with PTSD suggest that ..
- Ecstasy and the Dorsomedial HypothalamusDaniel E Rusyniak; Fiscal Year: 2010..These effects include increases in heart rate (HR), mean arterial pressure (MAP), temperature, plasma ACTH and locomotor activity...
- Mechanisms of Meditation in Hypertension in BlacksRobert Schneider; Fiscal Year: 2010..assess cardiovascular and plasma catecholamine reactivity to lab stressors;hemodynamic responses, comprising heart rate, blood pressure, stroke volume, cardiac output, and total peripheral resistance;arterial compliance, and cardiac ..
- African and European Descent, Ocular Blood Flow and Glaucoma ProgressionAlon Harris; Fiscal Year: 2013..ultrasonic corneal pachymetry of central corneal thickness, height, weight, body mass index, blood pressure, heart rate, medical history, visual field testing (using standard automated perimetry), Fourier domain Doppler optical ..
- Central Sympathetic Regulation of Thermogenesis in FeverShaun F Morrison; Fiscal Year: 2013..regulating the activity in the thermoregulatory pathways mediating the increases in BAT thermogenesis, heart rate and CVC contributing to the febrile response to PGE2 in the POA and to cold defense responses to skin cooling...
- POST-EXERCISE ION CHANNEL GENE EXPRESSION BIOMARKERS IN CFSKathleen C Light; Fiscal Year: 2013..show dysregulation of these receptors in CFS after 25 min of moderate exercise (at 70% of age-predicted maximum heart rate). Using blood samples from 0...
- Validation in Baboon Model of Broadband NIR Monitoring for Neonate Gut PerfusionDavid A Benaron; Fiscal Year: 2012..of extremely pre-term neonates relies on the traditional methods of monitoring such as arterial blood pressure, heart rate, pulse oximetry, urine output and evidence of metabolic acidosis...
- The baroreflex in pregnancy: effects of adrenal and placental steroidsMaureen Keller-Wood; Fiscal Year: 2012..In nonpregnant ewes cortisol increases blood pressure and heart rate, and decreases baroreflex sensitvity;adrenalectomy and total withdrawal from adrenal steroids causes decreased ..
- CaMKII in Sinus Node Physiology and DiseaseMark E Anderson; Fiscal Year: 2013..protein kinase II (CaMKII) as a necessary signal for physiological, 'fight or flight', increases in heart rate. We showed that the cellular mechanisms for CaMKII actions on heart rate were related to increasing sarcoplasmic ..
- Transcutaneous vagus nerve stimulation in cerebral ischemiaIlknur Ay; Fiscal Year: 2013..To determine their safety, we will monitor physiological parameters (e.g., arterial blood pressure, heart rate, heart rate variability, and respiration rate) during an immediately after stimulation and will follow-up ..
- The Effect of Maternal Stress on Perinatal DevelopmentLISA J ECKLUND-FLORES; Fiscal Year: 2011..Previous studies have shown that maternal anxiety and depression influence fetal heart rate reactivity...
- Blood Pressure Regulation by the Circadian Clock Protein Per1Michelle L Gumz; Fiscal Year: 2013..are known to peak with a circadian pattern and have been linked to the morning increase in blood pressure and heart rate. Indeed, many physiological processes exhibit a circadian pattern, including the sleep- wake cycle, heartbeat, ..
- Gender differences in aortic baroreceptor function and neural integrationJohn H Schild; Fiscal Year: 2013..and unmyelinated BR afferents and the manner in which this defines the strikingly different reflex control of heart rate and blood pressure evoked by these neuroanatomically distinct afferent pathways...
- STRESS-RELATED CHANGES IN GENE EXPRESSION AS BIOMARKERS OF RELAPSE VULNERABILITYROBERT DAVID BEECH; Fiscal Year: 2010..Alcohol craving, anxiety and emotion ratings, behavioral distress responses, heart rate, blood pressure, and salivary cortisol measures will be assessed during each session...
- Impact of an Indoor Stove Intervention on Indicators of Cardiorespiratory HealthJennifer L Peel; Fiscal Year: 2012..stove, and then examine improved stove use in relation to changes in health indicators (inflammatory markers, heart rate, blood pressure, lung function, and symptoms);(3) Compare air pollution concentrations of indoor fine ..
- Gender Specific Complications of Diabetic Autonomic Neuropathy: A New Mouse ModelJONAS BERNARD GALPER; Fiscal Year: 2010..Comparison of heart rate variability showed that the parasympathetic response of the heart was increased in young women compared with men;..
- Attenuation of cardiac parasympathetic nerve acetylcholine release in obesity byWohaib Hasan; Fiscal Year: 2012..In addition, increased heart rate and plasma catecholamines, and reduced heart rate variability in obesity are due to altered cardiac autonomic ..
- Effects on Caffeine on Adolescent Behavior and PhysiologyJennifer L Temple; Fiscal Year: 2010..In Specific Aim 1, a dose response study will be conducted by taking physiological (heart rate, blood pressure, and hand tremor) and psychological measurements in response to administration of placebo and ..
- Developing Radiological Risk Communication Materials for Low-Literacy PopulationsSARAH B BASS; Fiscal Year: 2010..to these materials will then be tested using psycho- physiological measures (eye-tracking, pupil dilation, heart rate, respiration rate, skin conductance and body temperature) to assess their effectiveness in reducing fear and ..
- Intervention for Menstrual Mood Disorders &Early Life Abuse: Biopsych MechanismsSusan S Girdler; Fiscal Year: 2013..will be assessed at rest and in response to mental stress: 1) sympathetic nervous system (blood pressure, heart rate, plasma norepinephrine and epinephrine);2) hypothalamic-pituitary-adrenal (plasma ACTH and cortisol);3) ..
- Take Heart: Exercise & Diet Intervention for Heart Failure in Cancer SurvivorsELIE MOUHAYAR; Fiscal Year: 2010..The goal will be for patients to work up to at least 30 minutes of exercise 3 times a week at 60-70 percent or heart rate reserve...
- Factors that Initiate Arrhythamias in Long QT SyndromeGuy Salama; Fiscal Year: 2006..Sympathetic and parasympathetic modulation of heart rate, conduction of the specialized conduction system and ventricular myocardium, AP upstroke velocity, APDs, DOR, ..
- The Prevalence of Blood Pressure Abnormalities among Veterans with SCIJill Wecht; Fiscal Year: 2009..Diminished autonomic cardiovascular control following SCI can result in abnormal blood pressure, blood flow and heart rate, the degree of which may or may not be related to the level and completeness of SCI (3, 4)...
- Neuroendocrine Mechanisms of Developmental Massage Therapy in Preterm InfantsLaurie Moyer Mileur; Fiscal Year: 2009..Our hypothesis will be tested by the following specific aims: #1) We will determine ANS balance, measured by heart rate variability, before, during, and after DMT;#2) We will compare the relationships between ANS balance and HPA ..
- Autonomic consequences of brief seizuresMark Stewart; Fiscal Year: 2004..A broader spectrum of autonomic signs, including changes in heart rate and rhythm (most often bradycardia), blood pressure (most often pressure increases), pupillary size, vasomotor ..
- THE EFFECTS OF COCAINE ON FETAL OXYGENATIONJames Woods; Fiscal Year: 1993Cocaine produces increases in blood pressure and heart rate by interfering with the uptake and degradation of norepinephrine at adrenergic nerve terminals...
- Integrative Cardiovascular Control During Exercise in HypertensionDONAL S O apos LEARY; Fiscal Year: 2010..with established hypertension abnormally large increases in sympathetic nerve activity, arterial pressure and heart rate often occur in response to exercise which precludes advisement of any strenuous physical activity due to the ..
- Amygdala Priming Mechanism Underlying the Panic ResponseSHELLEY THIELEN; Fiscal Year: 2001..maximum of 6 days with a subthreshold dose of the GABAA antagonist bicuculline methiodide exhibit an increase in heart rate (> 50 beats per minute), blood pressure, respiratory rate, and anxiety- like behavior, measured using the ..
- Human circadian sensitivity to very short light pulsesElizabeth B Klerman; Fiscal Year: 2010..include melatonin suppression (signal for seasonal reproductive changes), pupillary reflexes, and changes in heart rate, performance, and alertness...
- Physiological and Emotional Reactivity to Pain after Physical and Sexual AbuseKARIN N WESTLUND-HIGH; Fiscal Year: 2011..Coincident physiological response changes in these chronic pain sufferers include decreased heart rate variability (HRV)...
- The Effects of Docosahexaenoic acid (DHA) on fetal cardiac outcomesKathleen M Gustafson; Fiscal Year: 2010..has been shown to lower triglycerides and is important to cardiovascular health and autonomic control, lowering heart rate (HR) and blood pressure and increasing heart rate variability (HRV)...
- HEART RATE RECOVERY AND MORTALITYMichael Lauer; Fiscal Year: 2002Although there has been considerable attention paid to the prognostic significance of the heart rate rise during exercise, only recently has it been noted that the heart rate fall after exercise, or "heart-rate recovery," may be an even ..
- CNS MEDIATION OF CONDITIONED BRADYCARDIAPHILIP MC CABE; Fiscal Year: 1990The proposed behavioral experiments will explore the CNS pathways involved in the classical conditioning of heart rate responses in rabbits...
- Spontaneous Arousals in "CHIME" Infants at Risk for SIDSROBERT DARNALL; Fiscal Year: 2006..Subcortical arousals associated with changes in breathing, blood pressure, heart rate, and heart rate variability, may be particularly important in infants...
- Y Receptor In and Cardiovascular Function From the PHNJohn Martin; Fiscal Year: 2004..by the pancreatic polypeptide neuropeptide Y (NPY) that mediates increases in mean arterial pressure (MAP) and heart rate (HR), and to explore the mechanism by which the related pancreatic polypeptide PYY, which appears to stimulate a ..
- IN VITRO MODEL OF PRECONDITIONING WITH ISOLATED MYOCYTESCHARLES GANOTE; Fiscal Year: 2001..of ischemic preconditioning using isolated cardiac myocytes from rabbits, as an example of an animal with a fast heart rate, and from pigs, as an example of an animal with a slow heart rate...
- Spiral Electrode Sensor for Intrapartum Fetal OximetryJONAS POLOGE; Fiscal Year: 2003Fetal heart rate monitoring is intended to detect signs of fetal distress due to oxygen starvation of the fetus...