Search Results
 Results 151 - 200 of 1451 1 2 3 4 5 6 7 8 9 10 > 151 Tanaka M - - 2013 Background: Evaluation of the contractile state of the left ventricle during exercise is important in drawing up a protocol of cardiac rehabilitation. It has been demonstrated that color Doppler- and echo tracking-derived carotid arterial wave intensity is a sensitive index of global left ventricular (LV) contractility. 152 Ma Zhichao - - 2013 Swimming exercise leads to a nonpathological, physiological left ventricular hypertrophy. However, the potential molecular mechanisms are unknown. We investigated the role of microRNAs (miRNA) regulating the cardiac signal cascades were studied in exercised rats. Female Wistar rats were assigned into two groups: (1) sedentary control (SC), (2) swimming exercise (SE). ... 153 Piña Ileana L - - 2013 Anemia is common in patients with chronic heart failure (HF), with a prevalence ranging from 10% to 56%, and may be a risk factor for poor outcomes. Anemia in HF remains poorly understood, with significant gaps in its impact on health-related quality of life (HRQoL), with most studies in HF ... 154 Lafitte Stéphane - - 2013 To analyze left ventricular (LV) obstruction in hypertrophic cardiomyopathy (HCM) during exercise echocardiography. Despite the association of symptoms with LV outflow tract obstruction in HCM, there exist paradoxical situations in which significant intraventricular gradients (>50 mmHg) at rest occur in conjunction with excellent exercise tolerance. To examine this phenomenon we ... 155 Ferreira Eloara Vm - - 2013 Increased ventilatory ($$\stackrel{\cdot }{\hbox{ V }}$$E) response to carbon dioxide output ($$\stackrel{\cdot }{\hbox{ V }}$$CO2) is a key finding of incremental cardiopulmonary exercise testing in both heart failure and pulmonary arterial hypertension (PAH). As with heart failure, measures of excessive exercise ventilation considering high-to-peak exercise $$\stackrel{\cdot }{\hbox{ V }}$$E-\stackrel{\cdot }{\hbox{ ... 156 Morvan Eduardo - - 2013 BACKGROUND: The increase in fructose consumption is paralleled by a higher incidence of metabolic syndrome, and consequently, cardiovascular disease mortality. We examined the effects of 8 weeks of low intensity exercise training (LET) on metabolic, hemodynamic, ventricular and vascular morphological changes induced by fructose drinking in male rats. METHODS: Male ... 157 Eleid Mackram F - - 2013 Retroperitoneal fibrosis is a rare condition characterized by the presence of inflammatory and fibrous retroperitoneal tissue that surrounds and often encases abdominal structures. In this report we describe an unusual presentation of retroperitoneal fibrosis and inferior vena cava (IVC) obstruction that was unidentified by noninvasive testing and ultimately diagnosed using ... 158 Reichenberger Frank - - 2013 Background A variation in right atrial and pulmonary arterial pressure might result in a shunt dynamic across a patent foramen ovale (PFO). In the present study we tested if peak exercise facilitates a restoration of right to left shunt (RLS) in stroke patients who demonstrated a functional PFO closure (no ... 159 Ito Daisuke - - 2013 There is an interaction between heart and kidney diseases, which is a condition termed cardiorenal syndrome. Exercise training has cardioprotective effects, involving upregulation of endothelial nitric oxide synthase (eNOS) in the cardiovascular system. However, the effects of exercise training on nitric oxide synthase (NOS) in the kidney with heart disease ... 160 Dumitru Luminita L Elias Emergency University Hospital, Department of Physical and Rehabilitation Medicine, Bucharest, - - 2013 Chronic Obstructive Pulmonary Disease (COPD) and Chronic Heart Failure (CHF), two major causes of worldwide morbidity and mortality have important systemic components, affecting additional tissues, other than the lung or the heart, such as the skeletal muscle. Muscle function (or dysfunction) may not only influence the symptoms that limit exercise, ... 161 Benes Jan J Department of Cardiology, Institute of Clinical and Experimental Medicine-IKEM, Prague, Czech - - 2013 The purpose of this study was to compare the prognostic impact of clinical and biomarker correlates of resting heart rate (HR) and chronotropic incompetence in heart failure (HF) patients. The mechanisms and underlying pathophysiological influences of HR abnormalities in HF are incompletely understood. In a prospective pilot study, 81 patients ... 162 Boyle Kyndall L - - 2013 Lumbopelvic-femoral conditions are common and may be associated with asymmetrical musculoskeletal and respiratory impairments and postural mal-alignment called a Left Anterior Interior Chain (AIC) pattern. An inherent pattern of asymmetry involves the trunk/ribs/spine/pelvis/hip joints and includes the tendency to stand on the right leg and shift the center of gravity ... 163 Nunes Ramiro B - - 2013 The aim of the present study was to evaluate the effect of 8 weeks of aerobic exercise training on cardiac functioning and remodeling and on the plasma levels of inflammatory cytokines in chronic heart failure rats. Wistar rats were subjected to myocardial infarction or sham surgery and assigned to 4 ... 164 Kamiya Kentaro - - 2013 BACKGROUND: Quadriceps strength is related to exercise capacity in normal subjects and different patient populations, but the relationship between maximal quadriceps isometric strength (QIS) and different exercise capacity levels in coronary artery disease (CAD) patients has not been systematically evaluated yet. METHOD: We studied 621 patients (60.6 ± 9.9 years, 538 males) ... 165 Rengo Giuseppe - - 2013 BACKGROUND: Increased cardiac G protein-coupled receptor kinase-2 (GRK2) expression has a pivotal role at inducing heart failure (HF)-related β-adrenergic receptor (βAR) dysfunction. Importantly, abnormalities of βAR signalling in the failing heart, including GRK2 overexpression, are mirrored in circulating lymphocytes and correlate with HF severity. Exercise training has been shown to ... 166 Halank Michael - - 2013 BACKGROUND: The objective of this prospective study was to evaluate the impact of exercise capacity, mental disorders, and hemodynamics on quality-of-life (QoL) parameters in patients with pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH). METHODS: Sixty-three patients with invasively diagnosed PAH (n = 48) or CTEPH (n = 15) underwent a broad ... 167 Trachsel Dagmar S - - 2013 OBJECTIVE: Atrial natriuretic peptide (ANP) and cardiac troponin I (cTnI) serve as biomarkers for increased cardiac pressure/volume loading and for myocardial stress or damage. The objective was to describe the time course of plasma ANP concentrations (CpANP) and plasma cTnI concentrations (CpcTnI) in horses with mitral regurgitation (MR) compared to ... 168 Aksakal Enbiya - - 2013 OBJECTIVE: Exercise training has been known to cause structural and functional alterations in the heart called athletes heart. We aimed to investigate the effects of incremental endurance exercise training (IEET) on the left ventricular (LV) mechanics in healthy subjects. METHODS: This prospective observational study included 34 healthy young men who ... 169 Mendes Renata Gonçalves - - 2013 Abstract Purpose: To assess whether the same exercise-based inpatient program applied to patients with normal and reduced left ventricular function (LVF) evokes a similar cardiac autonomic response after coronary artery bypass graft (CABG). Method: Forty-four patients post-CABG, subgrouped according to normal LVF [LVFN: n = 23; left ventricular ejection fraction (LVEF) ≥ 55%] and ... 170 La Gerche A - - 2013 It has been observed that microbubbles may pass through the pulmonary circulation of dogs and humans during exercise. In humans, this phenomenon has been associated with lower pulmonary artery pressures, enhanced right ventricular function and greater exercise capacity. In the exercising Thoroughbred horse, extraordinarily high cardiac outputs exert significant pulmonary ... 171 Gademan Maaike G J - - 2013 BACKGROUND: The mechanism of the beneficial effects of exercise training on autonomic derangement and neurohumoral activation in chronic heart failure (CHF) is largely unexplained. In our here-presented hypothesis-generating study we propose that part of these effects is mediated by the exercise-accompanying somatosensory nerve traffic. To demonstrate this, we compared the ... 172 Su Chia-Ting - - 2013 The exercise capacity and limitation in children with asymptomatic atrial septal defect (ASD) have not been explored thoroughly. The aim of our study was to examine the influence of asymptomatic ASD on exercise capacity in children. Fifty children with asymptomatic ASD who had undergone medical interventions at least 4 years ... 173 Magne Julien - - 2013 The European Society of Cardiology's updated guidelines emphasize the usefulness of exercise stress echocardiography in patients with valvular heart disease. Exercise-induced changes in valve hemodynamics should be assessed in patients with mitral valve disease. In asymptomatic patients with moderate or severe mitral regurgitation without left ventricular dysfunction/dilatation, exercise stress echocardiography ... 174 Andersen Mads J - - 2013 BACKGROUND: To assess whether changes in E/e´ (the ratio between peak early mitral inflow velocity (E) and peak early mitral annulus velocity (e´)) during exercise reflect changes in filling pressure in patients with a recent myocardial infarction (MI) and mild to moderate diastolic dysfunction at rest. A low E/e´ ratio ... 175 Vogiatzis Ioannis - - 2013 Cardiopulmonary rehabilitation is recognized as a core component of management of individuals with Congestive Heart Failure (CHF) or Chronic Obstructive Pulmonary Disease (COPD) which is designed to improve their physical and psychosocial condition without impacting on the primary organ impairment. This has lead scientific community increasingly to believe that the ... 176 Reiter Brock D - - 2013 The objective of this study was to examine the long-term effects of exercise on physiological function, functional capacity, and quality of life (QOL) and health status in patients with heart failure. PubMed and CENTRAL were searched (March 2001 to March 2011) for randomized controlled trials for the keyword "exercise heart ... 177 Lazar Jason M - - 2013 Exercise training is accepted to be beneficial in lowering morbidity and mortality in patients with cardiac disease. Swimming is a popular recreational activity, gaining recognition as an effective option in maintaining and improving cardiovascular fitness. Swimming is a unique form of exercise, differing from land-based exercises such as running in ... 178 Guiraud Thibaut - - 2013 Purpose: Autonomic dysfunction including sympathetic activation and vagal withdrawal has been reported in patients with chronic heart failure (CHF). We tested the hypotheses that high-intensity interval exercise (HIIE) in CHF patients would enhance vagal modulation and thus decrease arrhythmic events.Methods: Eighteen CHF patients underwent a baseline assessment (CON) and were ... 179 van Buuren Frank - - 2013 AIMS: Electromyostimulation (EMS) of thigh and gluteal muscles is a strategy to increase exercise capacity in patients with chronic heart failure (CHF). The aim of this non-randomised pilot study was to investigate the effects of different stimulation strategies in CHF patients using a newly developed stimulation suit also involving trunk ... 180 Moustafa Sherif - - 2013 Herein we report a 21 year-old woman with a previously documented patent ductus arteriosus and Eisenmenger physiology. She presented with increasing cyanosis and exercise intolerance which could be explained by a new finding of right to left shunting through an interatrial communication. She was started on Bosentan therapy aiming to ... 181 Guasch Eduard E Department of Medicine, University of Montreal, Montreal, Quebec, - - 2013 The goal of this study was to assess mechanisms underlying atrial fibrillation (AF) promotion by exercise training in an animal model. High-level exercise training promotes AF, but the underlying mechanisms are unclear. AF susceptibility was assessed by programmed stimulation in rats after 8 (Ex8) and 16 (Ex16) weeks of daily 1-h ... 182 Chatterjee Neal A - - 2013 BACKGROUND: -In patients with left ventricular systolic dysfunction (LVSD), the rate at which oxygen uptake (VO2) increases upon initiation of exercise is inadequate to match metabolic demands. To gain mechanistic insights into delayed VO2 kinetics in LVSD we simultaneously assessed hemodynamic measurements, ventilatory parameters, and peripheral oxygen utilization during exercise. ... 183 Kepez Alper - - 2013 Background The study evaluates the alterations in exercise capacity of chronic thromboembolic pulmonary hypertension (CTEPH) patients after pulmonary endarterectomy (PEA) and investigates the echocardiographic parameters associated with the degree of functional recovery.Methods Thirty consecutive patients with the diagnosis of CTEPH (17 males; mean age, 45.9 ± 15.1 years) who had ... 184 Farina E V - - 2013 Many studies have demonstrated the physiological effects of oxytocin (OT), atrial natriuretic peptide (ANP) and vasopressin (VP) in the homoeostasis of body fluids during physical exercise. However, a little information is available about the related immunohistochemical changes in hypothalamic magnocellular neurosecretory system during and after the training. The aim of ... 185 Willis Monte S MS McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, USA; Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC, - - 2013 The carboxyl terminus of Hsp70-interacting protein (CHIP) is a ubiquitin ligase/cochaperone critical for the maintenance of cardiac function. Mice lacking CHIP (CHIP-/-) suffer decreased survival, enhanced myocardial injury and increased arrhythmias compared with wild-type controls following challenge with cardiac ischaemia reperfusion injury. Recent evidence implicates a role for CHIP in ... 186 Moon Jeonggeun - - 2013 Background: The aim of this study was to investigate whether the extent of late gadolinium enhancement (LGE) on cardiovascular magnetic resonance imaging reflecting myocardial fibrosis correlates with left ventricular (LV) longitudinal function during exercise in hypertrophic cardiomyopathy (HCM). Methods and Results: Mitral annular velocities (E' and S') were measured on echocardiography at ... 187 Piccini Jonathan P - - 2013 To determine if exercise training is associated with an increased risk of implantable cardioverter defibrillator (ICD) therapies in patients with heart failure (HF). Few data are available regarding the safety of exercise training in patients with ICDs and HF. Heart Failure: A Controlled Trial Investigating Outcomes of Exercise TraiNing (HF-ACTION) ... 188 Niewiński Piotr - - 2013 BACKGROUND: Augmented reflex response from peripheral chemoreceptors characterises chronic heart failure (CHF), contributes to autonomic imbalance and exercise intolerance and predicts poor outcome. METHODS AND RESULTS: We present a case of a 56-year-old male patient with ischaemic CHF, who underwent surgical, unilateral carotid body resection to reduce peripheral chemosensitivity. At ... 189 Matsuki Ryosuke - - 2013 This study aims to elucidate the characteristics of patients with severe nonischemic heart failure exhibiting exercise oscillatory ventilation (EOV) and the association of these characteristics with the subjective dyspnea. Forty-six patients with nonischemic heart failure who were classified into the New York Heart Association (NYHA) functional class III underwent cardiopulmonary ... 190 Izawa Kazuhiro P - - 2013 The purpose of this study was to determine both an association between mortality and physical activity (PA) objectively measured by accelerometer and cutoff values for PA in Japanese outpatients with heart failure (HF). This prospective observational study comprised 170 HF outpatients (mean age, 65.2 years; 77% men). Peak oxygen uptake ... 191 Meluzin Jaroslav - - 2013 AIM: The aim of our study was to assess the course of immediate post-exercise pulmonary capillary wedge pressure (PCWP) changes to identify the optimal time window for the noninvasive diagnostics of exercise-induced PCWP elevation. METHODS AND RESULTS: Seventy-one patients at risk of heart failure with normal left ventricular ejection fraction ... 192 Zile Michael R - - 2013 BACKGROUND: -The purpose of the current study was to define exercise-induced changes in indices of left ventricular (LV) systolic and diastolic properties in patients with chronic heart failure (HF), compare these changes in patients with HF and a reduced ejection fraction (HFrEF) versus HF and a preserved EF (HFpEF), and ... 193 Deboeck Gaël - - 2013 BACKGROUND: The distance walked in 6 minutes (6MWD) has been reported to be linearly related to peak oxygen uptake (VO2) in cardiac diseases and in lung diseases. In these patients, the VO2 during a 6-min walk test (walkVO2) has been found to be nearly equivalent to peakVO2, but with a ... 194 Tuomainen Petri O - - 2013 OBJECTIVE: Levosimendan (LS) is a novel inodilator for the treatment of severe congestive heart failure (CHF). In this study, we investigated the potential long-term effects of intermittent LS treatment on the pathophysiology of heart failure. METHODS: Thirteen patients with modest to severe CHF received three 24-h intravenous infusions of LS ... 195 Mortensen Stefan P - - 2013 Endurance training lowers heart rate and blood pressure responses to exercise, but the mechanisms and consequences remain unclear. To determine the role of skeletal muscle for the cardioventilatory response to exercise, 8 healthy young men were studied before and after 5 weeks of 1-legged knee-extensor training and 2 weeks of ... 196 Müssigbrodt Andreas - - 2013 Exercise related palpitations, vertigo, and syncope may be caused by benign etiologies but can also herald life-threatening arrhythmias. The precise diagnosis of these findings is therefore essential and potentially life saving but often is a challenge for sports physicians and cardiologists.Leadless, ambulatory heart rate monitors with chest strap transmitters have ... 197 Friedberg Mark K - - 2013 Progressive right ventricular (RV) dysfunction and exercise intolerance are common problems after tetralogy of Fallot (TOF) repair. We investigated RV myocardial deformation and dyssynchrony in children after TOF repair and their association with exercise capacity. Asymptomatic children after TOF repair were investigated by 2-dimensional speckle tracking echocardiography, magnetic resonance, and ... 198 Keyhani Diana - - 2013 Few studies have investigated changes in autonomic function after training in patients with cardiovascular diseases, particularly patients with congestive heart failure (CHF). Heart rate recovery (HRR) is a strong predictor of mortality in coronary artery disease (CAD) patients. The aim of this study was to determine the effect of 8 ... 199 Edelmann Frank F Department of Cardiology and Pneumology, Heart Center, University of Göttingen, Göttingen, - - 2013 Diastolic heart failure (ie, heart failure with preserved ejection fraction) is a common condition without established therapy, and aldosterone stimulation may contribute to its progression. To assess the efficacy and safety of long-term aldosterone receptor blockade in heart failure with preserved ejection fraction. The primary objective was to determine whether ... 200 Fenzl M - - 2013 Exercise in water compared to land-based exercise (LE) results in a higher release of natriuretic peptides, which are involved in the regulation of exercise-induced adipose tissue lipolysis. The present study was performed to compare the release of atrial natriuretic peptide (ANP) and free fatty acids (FFA) during prolonged aerobic water-based ... 1 2 3 4 5 6 7 8 9 10 >