Search Results
Results 201 - 250 of 834
< 1 2 3 4 5 6 7 8 9 10 >
Telles Shirley - - 2004
The study aimed at determining whether novices to yoga would be able to reduce their heart rate voluntarily and whether the magnitude of reduction would be more after 30 days of yoga training. Two groups (yoga and control, n = 12 each) were assessed on Day 1 and on Day ...
Witte Klaus K A - - 2004
BACKGROUND: Patients with chronic heart failure complain of breathlessness and fatigue on exercise. Airways resistance is increased and lung compliance is reduced in chronic heart failure patients. The aim of this study was to determine whether the pulmonary abnormalities are reversible and whether any improvements lead to changes to exercise ...
White Sno E - - 2004
Two patients are reported, each with heart failure, who were treated with digoxin (case 1) and furosemide (case 2). Indications for medical treatment of patients with heart failure, the role of various drugs, and exercise therapy, are reviewed. At a time when the population of people over 65 years of ...
Laufs U - - 2004
OBJECTIVE: HMG CoA reductase inhibitors (statins) may exert a wide array of cholesterol independent effects including antihypertrophic effects on the heart. Their role in the treatment of heart failure has not been studied. METHODS AND RESULTS: 15 patients with heart failure NYHA II-III based on non-ischemic dilated cardiomyopathy were randomized ...
Corvera-Tindel Teresita - - 2004
BACKGROUND: Hospital-based exercise programs using a bicycle ergometer or a combination of exercise modalities have shown positive benefits in heart failure, but may not be readily accessible to many patients. Thus, we sought to evaluate the effects of a 12-week home walking exercise program on functional status and symptoms in ...
Piepoli M F - - 2004
To determine the effect of exercise training on survival in patients with heart failure due to left ventricular systolic dysfunction. Collaborative meta-analysis. Inclusion criteria Randomised parallel group controlled trials of exercise training for at least eight weeks with individual patient data on survival for at least three months. Studies reviewed ...
Rietveld Simon - - 2004
This study tested the hypothesis that patients with a congenital heart disease are sensitive regarding heartbeat perception, reflected in enhanced attention for heartbeat, estimation of own heart rate, and a vulnerability to become anxious by listening to heartbeat sounds. Twenty adults with a congenital heart disease, and 20 healthy controls ...
Mondoa Catherine T - - 2004
The clinical syndrome of chronic heart failure is increasingly prevalent. It can be considered a multiorgan disorder that may exert a negative physical and psychological influence on a patient. Medication and surgical intervention have important roles to play and have certainly improved both morbidity and mortality in this field, but ...
Rees K - - 2004
The prevalence of chronic heart failure is increasing, and increases with increasing age. Major symptoms include breathlessness and restricted activities of daily living due to reduced functional capacity, which in turn affects quality of life. Exercise training has been shown to be effective in patients with coronary heart disease and ...
Koukouvou Georgia G Laboratory of Sports Medicine, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, - - 2004
To assess the physiological and psychosocial effects of exercise training in chronic heart failure. Twenty-six men with heart failure (New York Heart Association functional classes II and III) aged 52.5 (SD 9.8) years, were studied. The subjects were randomized either to rehabilitation group (Group A: 16 patients), participating in a ...
Ventura-Clapier Renée - - 2004
Heart failure (HF) is a syndrome resulting from the inability of the cardiac pump to meet the energy requirements of the body. Despite intensive work, the pathogenesis of the cardiac intracellular abnormalities that result from HF remains incompletely understood. Factors that lead to abnormal contraction and relaxation in the failing ...
Guerra Myriam - - 2003
OBJECTIVE: To investigate the chronotropic response to exercise through peak heart rate and the Chronotropic Response Index (CRI) in participants with Down syndrome (DS) and in nondisabled control participants. DESIGN: Comparative study describing the acute exercise heart rate response. SETTING: University sports medicine facility. PARTICIPANTS: Twenty participants with DS (mean ...
Agostoni P - - 2003
BACKGROUND: In heart failure abnormalities of pulmonary function are frequently observed particularly during exercise, which is characterized by hyperpnea, low tidal volume, early expiratory flow limitation and reduced lung compliance. Exhaled nitric oxide (NO) is increased in asthma. We evaluated whether a correlation between exhaled NO and lung mechanics exists ...
Sato Masahiko - - 2003
Cardiac (123)I-metaiodobenzylguanidine ((123)I-MIBG) uptake is reduced in chronic heart failure, and its reduction is reported to relate to the decrease in exercise capacity. Reduced (123)I-MIBG uptake may predict an inadequately reduced adrenergic drive to the heart during cardiac sympathetic stimulation, including exercise. However, there is little information about the relationship ...
Kitaoka Hiroaki - - 2003
BACKGROUND AND OBJECTIVES: The occurrence of an abnormal cardiovascular response during exercise in patients with chronic heart failure is well known. Post-exercise blood pressure response is also useful in assessing the severity of heart failure and impaired exercise capacity. This study evaluated the prognostic significance of post-exercise blood pressure response ...
Michalsen Andreas - - 2003
BACKGROUND: Chronic heart failure is characterized by increased peripheral vascular resistance and reduced peripheral perfusion due to adrenergic and renin angiotensin activation and impaired endothelial function. Recent studies have shown that nonpharmacological peripheral vasodilation with thermal therapy by means of warm-water baths and sauna has beneficial effects in chronic heart ...
Roveda Fabiana - - 2003
OBJECTIVES: The goal of this study was to test the hypothesis that exercise training reduces resting sympathetic neural activation in patients with chronic advanced heart failure. BACKGROUND: Exercise training in heart failure has been shown to be beneficial, but its mechanisms of benefit remain unknown. METHODS: Sixteen New York Heart ...
Chiang Benjamin B - - 2003
The aim of this study was to evaluate the function of the AbioCor artificial heart implanted in calves that underwent treadmill exercise testing and to investigate the cardiovascular and metabolic responses during exercise. Six calves were implanted with the AbioCor. One week after surgery, exercise training was undertaken and animals ...
Sneed Nancee V - - 2003
BACKGROUND: Successful self-care in heart failure often requires lifestyle changes such as avoiding sodium, excess fluid intake, alcohol, and tobacco; exercising regularly; and losing weight. The Transtheoretical Model, a framework for making behavioral changes, proposes that change requires a series of stages. OBJECTIVES: To identify the stage of readiness for ...
Mahakkanukrauh Ajanee - - 2003
Exertional rhabdomyolysis is a life threatening condition resulting from lysis of muscle cells after vigorous exercise. It can cause many complications such as renal failure. It occurs most commonly in military personnel but also in civilians who have excessive excercise after work. Two cases of freshmen who had exertional rhabdomyolysis ...
Belardinelli Romualdo - - 2003
Exercise can induce or prevent arrhythmias depending upon several factors, related to patient's clinical characteristics and to exercise modalità (type, intensità, frequency, duration). In the present paper, the author reviews the mechanisms of arrhythmias during acute and chronic exercise in heart failure, and focuses on the relationship between exercise training ...
Kishi Masahiko - - 2003
Many patients with variant forms of Guillain-Barré syndrome (vGBS) associated with anti-ganglioside antibodies, including Miller Fisher syndrome (MFS), sometimes exhibit miniature endplate potential (MEPP) frequency increases (MFI, described as alpha-latrotoxin-like effects in a previous report) and the factor to produce this effect is present in their sera. MFI-positive sera increase ...
Ohlsson A - - 2003
Exercise testing is commonly used in patients with congestive heart failure for diagnostic and prognostic purposes. Such testing may be even more valuable if invasive hemodynamics are acquired. However, this will make the test more complex and expensive and only provides information from isolated moments. We studied serial exercise tests ...
You Fang Zhi - - 2003
BACKGROUND: The reduction of exercise capacity because of fatigue and dyspnea in patients with heart failure can be improved with exercise training. We sought to examine the mechanisms of exercise training as an adjunctive treatment strategy for patients with heart failure. METHODS: We reviewed the published data on the possible ...
Witham Miles D - - 2003
Despite recent advances in pharmacological therapy, chronic heart failure remains a major cause of morbidity and mortality in older people. Studies of exercise training in younger, carefully selected patients with heart failure have shown improvements in symptoms and exercise capacity and in many pathophysiological aspects of heart failure, including skeletal ...
Nicoletti Ilaria - - 2003
Recent studies suggest that changes in the periphery, like those occurring in the skeletal muscles of patients with chronic heart failure, might play an important role in the origin of symptoms and exercise intolerance in this condition. Biochemical and histologic changes in the skeletal muscles of chronic heart failure patients ...
Thijs Roland D - - 2003
We report a 20-year-old sportsman with frequent attacks of lightheadedness, chest pain, blurred vision and falls during and shortly after exercise. Cardiac and pulmonal evaluation and routine autonomic function tests were normal apart from a relatively high resting heart rate (70 bpm) compared to endurance-trained men. In view of the ...
Braith Randy W - - 2003
Endurance exercise training appears to beneficially alter the clinical course of chronic heart failure. The specific mechanisms responsible for exercise-induced benefits, however, are not completely understood. This review examines the impact of endurance exercise training on neurohormonal mechanisms, which play a central role in the progression of chronic heart failure. ...
Smart Neil - - 2003
BACKGROUND: Exercise training has been shown to improve exercise capacity in patients with heart failure. We sought to examine the optimal strategy of exercise training for patients with heart failure. METHODS: Review of the published data on the characteristics of the training program, with comparison of physiologic markers of exercise ...
Sutcliffe Peter D - - 2003
Although prior studies have examined the role of central and peripheral hemodynamics on exercise tolerance within populations of patients with heart failure, a clear relation between hemodynamics and exercise has not been demonstrated. This may be due to the inability to control for other factors that may influence exercise performance. ...
Rosenfeldt Franklin - - 2003
COENZYME Q10 IN PHYSICAL EXERCISE. We identified eleven studies in which CoQ10 was tested for an effect on exercise capacity, six showed a modest improvement in exercise capacity with CoQ10 supplementation but five showed no effect. CoQ10 IN HYPERTENSION. We identified eight published trials of CoQ10 in hypertension. Altogether in ...
Russell Stuart D - - 2003
BACKGROUND: Exercise intolerance is a primary characteristic of chronic congestive heart failure. Exercise testing is therefore widely used to evaluate the degree of functional impairment, prognosis of underlying cardiac disease, and response to treatment. Historically, studies that used exercise tolerance as an end point to evaluate the efficacy of pharmacologic ...
Meyer Katharina - - 2003
This evaluation was performed to assess the effects of a new, comprehensive outpatient rehabilitation program on generic and disease-specific quality of life related to exercise tolerance in stable chronic heart failure patients. Fifty-one patients (aged 59+/-11 years; 84% men) were treated for 12 weeks. Patients underwent optimized drug treatment, exercise ...
Leclerc Kenneth M - - 2003
Congestive heart failure is a disorder that includes a multitude of neurohormonal responses that become maladaptive over time. Chronic sympathetic stimulation adversely affects the well-being and survival of heart failure patients and contributes to the exercise intolerance frequently seen in these patients. Norepinephrine levels have been correlated with poorer survival ...
Pozehl Bunny - - 2003
The purpose of this pilot study was to test the adjunctive effects of a 12-week exercise training intervention vs. standard pharmacologic therapy on quality of life, functional status, and mood in heart failure patients. A randomized, two-group repeated measures design was used to test outcomes at baseline and 12 weeks ...
Gerdes A Martin - - 2002
Contracting myocytes are highly variable in size and generally resemble elliptical cylinders in shape. Although their arrangement within the ventricular wall is rather complex, their length runs in a tangential manner, and their transverse axis runs transmurally. Consequently, it was proposed many years ago that changes in myocyte length (L) ...
Jeng Chii - - 2002
AIM: To explore the experiences of exercise among Taiwanese heart transplant patients on the basis of a grounded theory. BACKGROUND: Although studies conducted around the world have proven how important exercise is to heart transplant patients, little information was found about heart transplant patients' exercise experience. In addition, because of ...
Santoro Cheryl - - 2002
BACKGROUND: Previous research has demonstrated that exercise intolerance in heart failure patients is associated with significant alterations in skeletal muscle ultrastructure and oxidative metabolism that may be more consequential than cardiac output. DESIGN: To examine the effect of exercise training on skeletal muscle mitochondrial size in chronic heart failure patients. ...
Kufel T J - - 2002
Respiratory muscle strength and endurance is reduced in patients with congestive heart failure, making these patients susceptible to diaphragmatic fatigue during exercise. In order to determine whether or not contractile fatigue of the diaphragm occurs in patients with congestive heart failure following intense exercise, twitch transdiaphragmatic pressures (twitch Ptdi) were ...
Squires Ray W RW Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minn 55905, USA. - - 2002
To determine the frequency of partial normalization of the heart rate response to graded exercise and its relationship to exercise capacity in cardiac transplant recipients. The study subjects were 95 adults (77 men, 18 women) who were available to perform a cardiopulmonary exercise test 1 year after orthotopic cardiac transplantation, ...
Agostoni Piergiuseppe P Centro Cardiologico, Monzino, Istituto di Ricovero e Cura a Carattere Scientifico, Istituto di Cardiologia, Università di Milano, via Parea 4, 20138 Milan, Italy. - - 2002
To evaluate the effects of beta-blockers on ventilation in heart failure patients. Indeed, beta-blockers ameliorate the clinical condition and cardiac function of heart failure patients, but not exercise capacity. Because ventilation is inappropriately elevated in heart failure patients due to overactive reflexes from ergoreceptors and chemoreceptors, we hypothesized that beta-blockers ...
Kitzman Dalane W - - 2002
CONTEXT: Many older patients with symptoms of congestive heart failure have a preserved left ventricular ejection fraction (LVEF). However, the pathophysiology of this disorder, presumptively termed diastolic heart failure (DHF), is not well characterized and it is unknown whether it represents true heart failure. OBJECTIVE: To assess the 4 key ...
Wagoner Lynne E - - 2002
BACKGROUND: Exercise performance in patients with congestive heart failure is partially dependent on cardiac beta1-adrenergic receptor (beta1AR) function. There are 2 common polymorphisms of the beta1AR gene that alter the encoded amino acids at positions 49 (Ser or Gly) and 389 (Gly or Arg) and alter receptor function in vitro. ...
Akdur Hülya - - 2002
The aim of the present study was to evaluate the tolerance to various exercises by determining the cardiovascular response to static and dynamic exercises in patients with nonvalvular atrial fibrillation. Fifty patients (mean age: 63.6 +/- 10.3 years; male: 25, female: 25) with chronic (more than one year) nonvalvular atrial ...
Robinson B - - 2002
Patients with intraatrial baffle procedure for transposition of the great arteries (TGA) have diastolic dysfunction, decreased exercise capacity, stroke volume response and elevated systemic vascular resistance (SVR) during exercise. Angiotensin-converting enzyme (ACE) inhibitors improve exercise capacity in adults with congestive heart failure by improving diastolic function and decreasing SVR. We ...
Agostoni P G - - 2002
To determine whether there is a relation between impairment of lung diffusion and reduced exercise capacity in chronic heart failure. 40 patients with heart failure in stable clinical condition and 40 controls participated in the study. All subjects underwent standard pulmonary function tests plus measurements of resting lung diffusion (carbon ...
Braith Randy W - - 2002
Exercise training increases functional capacity and improves symptoms in selected patients with chronic heart failure and moderate-to-severe left ventricular systolic dysfunction. Patients should be assessed before they start an exercise program. Initial programs should be supervised, and the duration increased as tolerated. The most consistent benefits occur with exercise done ...
Mejhert M - - 2002
To evaluate the safety and prognostic capacity of cardiopulmonary exercise testing in patients > or = 60 years old who are hospitalised with heart failure caused by left ventricular dysfunction. Prospective study. University hospital. Study participants were 67 patients (66% men) with clinical heart failure stabilised on medical treatment. The ...
Witte Klaus K A - - 2002
Patients with heart failure have slow metabolic gas exchange kinetics, which may contribute to the elevated slope of the relationship between ventilation and carbon dioxide production (Ve/Vco(2) slope). A tertiary referral centre for cardiology. Eleven patients with stable chronic heart failure and 11 age-matched controls. Each subject underwent maximal bicycle-based ...
Barbato John C - - 2002
Chronic administration of aldosterone promotes myocardial fibrosis in rats. The Randomized Aldactone Evaluation Study reported that the aldosterone antagonist spironolactone improved outcome in patients with congestive heart failure, suggesting a deleterious effect of aldosterone in the heart. Aldosterone has been shown to have rapid nongenomic effects in different tissues including ...
< 1 2 3 4 5 6 7 8 9 10 >