Search Results
Results 1 - 50 of 836
1 2 3 4 5 6 7 8 9 10 >
Webel Allison R - - 2014
People living with HIV (PLWH) are living longer and are at greater risk for chronic comorbidities (e.g., cardiovascular disease, cancer) compared to those not living with HIV. Regular, sustained exercise can prevent and/or mitigate the severity of these comorbidities. Our purpose was to describe patterns of planned exercise implemented in ...
Laurent C Matthew CM 1Exercise Science Program, Bowling Green State University, Bowling Green, OH 2Department of Athletics, Bowling Green State University, Bowling Green, - - 2014
This study aimed to evaluate changes in pre- to post-season power output, fatigue and recovery during a repeated sprint test. Twenty NCAA Division I men's hockey athletes performed identical sessions of repeated sprint work pre- and post-season. The repeated sprint test consisted of 5 sets of 45-s of repeated sprint ...
Giannitti F - - 2013
Within a 24-hour period, 7 out of 200 three- to four-week-old pastured Katahdin lambs died after showing clinical signs of hemoglobinuria, red-tinged feces, weakness, and recumbency. One of the lambs that was examined clinically before natural death also had abdominal pain, trembling, tachycardia, and severe anemia with a packed cell ...
Lane A D - - 2013
Wasted left ventricular effort (∆Ew) refers to work required of the left ventricle to eject blood that does not result in increased stroke volume and is related to left ventricular hypertrophy. Literature shows that men and women have differing ventricular and vascular responses to and following exercise. Our purpose was ...
Rønnestad Bent R - - 2013
The aim of the present study was to investigate the effects of the seasonal changes in heavy strength training on maximal strength and vertical jump ability in internationally competing ski jumpers. A repeated-measures design was used to follow-up the changes in strength, vertical jump capacity, and neuromuscular efficiency (expressed as ...
Cockram M S - - 2012
The welfare consequences of long-distance transportation of animals remain a controversial topic. Animals that stand for most of the long journey (especially if additional muscular activity is required to deal with postural instability) are at risk of developing fatigue. Previous observational studies of behaviour and physiology suggested either that sheep ...
Hasson Christopher J - - 2011
The genesis of human movement involves a complex series of events that depend on the integrated physiology of the neural, muscular, skeletal, metabolic, respiratory and cardiovascular systems. Since each of us has a unique set of physical attributes, such as muscle strength, aerobic capacity, and skeletal structure, our movement patterns ...
Foltz Jennifer L - - 2011
Experts have recommended daily obesity prevention goals: ≥5 fruits/vegetables, <2 hours of screen time, >1 hour of physical activity, and no sugar-sweetened beverages (5-2-1-0). The authors analyzed National Health and Nutrition Examination Survey data for 1999-2002 to determine the proportion of US adolescents (12-19 years) who would have met each ...
Sanchez-Gonzalez Marcos A - - 2011
Arterial stiffness and hemodynamics may be increased following a bout of resistance exercise. Oral creatine supplementation (Cr) may attenuate cardiovascular responses after exercise via improved anaerobic metabolism. This study was aimed to determine the effect of Cr on hemodynamic and arterial stiffness responses after acute isokinetic exercise. Sixteen healthy males ...
Cattadori Gaia - - 2011
Peak oxygen consumption (VO2) and various parameters of cardiopulmonary response to exercise are of important prognostic value in chronic heart failure patients. However, all the available parameters only indirectly reflect left-ventricular dysfunction and hemodynamic adaptation to an increased demand. Noninvasive assessment of cardiac output, especially during an incremental exercise test, ...
Kuo Lawrence C - - 2011
For anyone who has participated in a screening exercise in a pharmaceutical or biotech setting with the aim to discover hits against protein targets, it is evident that a single screening exercise does not always offer hits of sufficient quality to be progressed into a lead compound. Often, more than ...
Keteyian Steven J - - 2010
Initial research established the feasibility of exercise training in patients with heart failure, as well as associated physiological benefits. This review summarizes the findings from over two dozen single-site studies that address the effect of exercise training on exercise capacity and cardiovascular and peripheral function. In addition, it incorporates the ...
Woods Paul R - - 2011
Traditionally, VO(2peak) has been used to determine prognosis in heart failure; however, this measure has limitations. Hence, other exercise and gas exchange parameters measured submaximally, e.g. breathing efficiency (V(E)/VCO(2)), end-tidal CO(2) (P(ET)CO(2)), oxygen uptake efficiency slope (OUES), and circulatory power [ systolic blood pressure (SBP)], have been investigated. The aim ...
Deftereos Spyridon - - 2010
The aim of this prospective, open-label, cohort study was to compare the effect of muscle functional electrical stimulation (FES) on endothelial function to that of conventional bicycle training. Eligible patients were those with New York Heart Association class II or III heart failure symptoms and ejection fractions ≤ 0.35. Two ...
Cay Serkan - - 2010
Both early repolarization and altered heart rate profile are associated with sudden death. In this study, we aimed to demonstrate an association between early repolarization and heart rate profile during exercise. A total of 84 subjects were included in the study. Comparable 44 subjects with early repolarization and 40 subjects ...
Carvalho Vitor Oliveira VO Laboratório de Insuficiência Cardíaca e Transplante do Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da USP (InCor HC-FMUSP), São Paulo, Brazil. - - 2010
The Minnesota Living with Heart Failure Questionnaire (MLHFQ) is a well-validated, commonly-used tool to assess quality of life in patients with heart failure. However, it lacks specific information concerning breathlessness during daily activities. To determine the validity of the London Chest Activity of Daily Living (LCADL) scale for use in ...
Carvalho Vitor Oliveira - - 2011
Background: Heart transplantation is a gold-standard treatment for selected patients in the terminal stages of heart failure and it can improve patients' quality of life, exercise capacity, and survival. Despite of the exercise performance in heart transplant recipients increases with respect to pre-transplantation, it still remains subnormal when compared with ...
Pozehl Bunny - - 2010
This study tested the effects of a multicomponent exercise training intervention called "Heart Failure Exercise And Training Camp" (HEART CAMP). The intervention was theoretically derived from Bandura's social cognitive theory. An experimental repeated-measures design was used. Participants were randomized to the HEART CAMP intervention group (n = 22) or the ...
Reed Shelby D SD Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC 27715, USA. - - 2010
Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training (HF-ACTION) assigned 2331 outpatients with medically stable heart failure to exercise training or usual care. We compared medical resource use and costs incurred by these patients during follow-up. Extensive data on medical resource use and hospital bills were collected throughout ...
Edelmann Frank - - 2010
Increasing evidence suggests that enhanced aldosterone signalling plays a key role in the onset and progression of diastolic heart failure (DHF). Aldo-DHF will test the hypothesis that aldosterone receptor blockade by spironolactone will improve exercise capacity and diastolic function in patients with DHF. Aldo-DHF is a randomized, placebo-controlled, double-blinded, two-armed, ...
Karapolat H - - 2010
OBJECTIVE: The objective of this study was to analyze the effect of pre-transplantation etiology and post-transplantation exercise on pulmonary function tests, functional capacities, psychological symptoms and quality of life among heart transplant patients. METHODS: An eight-week exercise program was applied to 35 heart transplant patients with histories of ischemic heart ...
Banerjee Prithwish - - 2010
Conventional exercise training has been shown conclusively to improve exercise capacity, quality of life, and even reduce mortality in chronic heart failure. Unfortunately, not all heart failure patients are suitable for conventional exercise programs for various reasons. The exciting new technique of electrical muscle stimulation (EMS) of large groups of ...
Ando Miyuki - - 2010
The washout rate (WR) of (123)I-metaiodobenzylguanidine (MIBG) is now widely used for assessing the severity of heart failure. Although the WR of MIBG is usually measured at rest, the assessment of WR of MIBG during exercise might have a different clinical relevance. In this study, we measured the WR rate ...
Davies Edward J - - 2010
To determine the effect of exercise training on clinical events and health-related quality of life (HRQoL) of patients with systolic heart failure. We searched electronic databases including Medline, EMBASE, and Cochrane Library up to January 2008 to identify randomized controlled trials (RCTs) comparing exercise training and usual care with a ...
Thomas D E - - 2010
OBJECTIVE: This study examines the relationship between heart rate recovery following exercise and subsequent response to cardiac resynchronisation therapy (CRT). BACKGROUND: Blunted heart rate recovery is an adverse prognostic marker in heart failure and has been shown to correlate with disease severity. METHODS: 37 patients receiving biventricular pacemakers for conventional ...
Piña Ileana L - - 2010
The number of heart failure patients continues to increase for men and women. Our current medical therapy includes a variety of agents that can reduce morbidity and mortality. However, many patients remain limited, in part, due to deconditioning. Adding to the functional loss are the multiple hospitalizations and even recommendations ...
Holland David J - - 2010
To examine the contribution of exercise echocardiography (ExE) to the diagnosis of heart failure with preserved ejection fraction (HFpEF). Cross-sectional study of patients undergoing ExE. 436 patients with fatigue or dyspnoea presenting for ExE were studied. Current criteria for the diagnosis of HFpEF (evidence of symptoms or signs of heart ...
Carvalho Vitor Oliveira - - 2010
In recent years, beta-blocker therapy has become a primary pharmacologic intervention in patients with heart failure by blocking the sympathetic activity. To compare the exercise training's sympathetic blockade in healthy subjects (athletes) and the carvedilol's sympathetic blockade in sedentary heart failure patients by the evaluation of the heart rate dynamic ...
Doutreleau St?phane - - 2010
BACKGROUND: Endothelial dysfunction is associated with the decreased exercise capacity observed in heart-transplant (HTx) recipients. L-arginine supplementation (LAS) stimulates the nitric oxide (NO) pathway and restores endothelial function. OBJECTIVE: We compared exercise capacity in healthy subjects and HTx patients and investigated whether chronic LAS might improve exercise capacity and NO/endothelin ...
Keteyian Steven J - - 2010
Despite the establishment of feasibility and physiologic benefits, questions remained about the safety and clinical effectiveness of physical exercise in patients with heart failure. In 2002, however, the Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training trial showed that physical exercise is safe, improves health status, increases cardiorespiratory ...
Zaim Sina - - 2010
BACKGROUND: Abnormal heart rate recovery (HRR) following exercise testing has been shown to be a predictor for adverse cardiovascular events. The actual maximum heart rate (MHR) attained during the exercise test does not however have a distinct significance in traditional HRR assessment. The objective of this study was to investigate ...
Smart Neil - - 2010
Significant benefits can be derived by heart failure patients from exercise training. This paper provides an evidence-based assessment of expected clinical benefits of exercise training for heart failure patients. Meta-analyses and randomized, controlled trials of exercise training in heart failure patients were reviewed from a search of PubMed, Cochrane Controlled ...
Tin Chung - - 2010
Congestive heart failure (CHF) patients suffer decreased exercise tolerance, yet they demonstrate an augmented ventilatory response to exercise such that P(aCO2) remains normal (isocapnic) from rest to maximal exercise in the face of increased pulmonary dead space (Fig. 1). On the other hand, the effect of a large external dead ...
Zuazagoitia Ana - - 2010
Quality of life (QoL) decreases as heart failure worsens, which is one of the greatest worries of these patients. Physical exercise has been shown to be safe for people with heart failure. Previous studies have tested heterogeneous exercise programs using different QoL instruments and reported inconsistent effects on QoL. The ...
Davies Ed J EJ Department of Cardiology, Royal Devon & Exeter Healthcare Foundation Trust, Barrack Road, Exeter, Devon, UK, EX2 - - 2010
From previous systematic reviews and meta-analyses there is consensus about the positive effect of exercise training on exercise capacity; however, the effects on health-related quality of life, mortality and hospital admissions in heart failure remain uncertain. To update the previous systematic review which determined the effectiveness of exercise-based interventions on ...
Reybrouck Tony - - 2009
OBJECTIVE: Conventionally the heart rate response to exercise has been considered as a useful parameter for the assessment of exercise performance. However, in patients with surgical repair of congenital heart defects sino-atrial dysfunction has been observed after cardiac surgery.The purpose of this study was to assess whether the heart rate ...
Reyes Santiago - - 2009
ATP-sensitive K+ (K(ATP)) channels maintain cardiac homeostasis under stress, as revealed by murine gene knockout models of the KCNJ11-encoded Kir6.2 pore. However, the translational significance of K(ATP) channels in human cardiac physiology remains largely unknown. Here, the frequency of the minor K23 allele of the common functional Kir6.2 E23K polymorphism ...
Wall Hilary K - - 2010
Comparison of supervised home-based exercise program as adjunctive therapy, with comprehensive disease management alone, on symptoms and quality of life in congestive heart failure patients. 8 women and 11 men were enrolled in a randomized trial. The mean subject age was 69 (±4.44) in the controls and 70 (±4.05) in ...
Maeder Micha T - - 2010
BACKGROUND: Young patients with obstructive sleep apnea syndrome (OSAS) display an attenuated heart rate recovery (HRR) during the first minute (HRR-1) and the first 2 min (HRR-2) postexercise. We sought to compare determinants of HRR-1 and HRR-2 in OSAS and to assess whether these associations depend on age. METHODS: Exercise ...
Guazzi Marco - - 2009
Cardiopulmonary exercise testing (CPX) is a well-recognized assessment technique in patients with HF. Ventilatory efficiency, aerobic capacity and heart rate recovery are several parameters obtained from CPX that accurately reflect physiologic function and provide robust prognostic information. Pharmacotherapy is a vital component to the management of patients with HF. Numerous ...
Zick Suzanna M - - 2009
Hawthorn's efficacy when added to contemporary evidence-based heart failure therapy is unknown. We aimed to determine whether hawthorn increases submaximal exercise capacity when added to standard medical therapy. We performed a randomized, double-blind, placebo-controlled trial in 120 ambulatory patients aged > or = 18 years with New York Heart Association ...
Russell Stuart D - - 2009
The New York Heart Association (NYHA) functional class is a subjective estimate of a patient's functional ability based on symptoms that do not always correlate with the objective estimate of functional capacity, peak oxygen consumption (peak V(O2)). In addition, relationships between these 2 measurements have not been examined in the ...
K?soi Istv?n - - 2010
BACKGROUND: Attenuated heart rate recovery (HRR) is an independent predictor of cardiac and total mortality. Diminished renal function is a similar predictor. There are no data concerning the interaction between the two risk factors. We studied HRR in patients with a homogeneous renal disease, IgA nephropathy. METHODS: One hundred and ...
Tang Yi-Da YD Department of Cardiology, Fu Wai Hospital, Chinese Academy of Medical Sciences, Beijing, - - 2009
Post-exercise heart rate recovery (HRR) is an index of parasympathetic function associated with clinical outcomes in populations with and without documented coronary heart disease. Decreased parasympathetic activity is thought to be associated with disease progression in chronic heart failure (HF), but an independent association between post-exercise HRR and clinical outcomes ...
Ingle Lee - - 2009
INTRODUCTION: Exertional oscillatory ventilation (EOV) occurs in many patients with chronic heart failure. Two different definitions of EOV have been proposed by Corrá and Leite. We aimed to compare the prevalence of EOV and its prognostic significance in patients with chronic heart failure using the two diagnostic approaches. METHODS: Patients ...
Giannakoulas Georgios - - 2010
Exercise intolerance is common in adults with congenital heart disease (ACHD) and affects their prognosis and quality of life, thus becoming an important target for therapies. While exercise training has been widely studied in chronic heart failure, its safety and efficacy in ACHD remain unknown. The main obstacle in studies ...
Blum Arnon - - 2009
Sildenafil is a selective inhibitor of type 5 phosphodiesterase, the main phosphodiesterase isoform responsible for hydrolysis of intracellular cyclic guanosine monophosphate in the pulmonary vasculature. It improves exercise capacity and quality of life in patients with systolic heart failure, especially in those who develop secondary pulmonary hypertension. It improves peak ...
Hsich Eileen E Department of Cardiovascular Medicine, Cleveland Clinic and Case Western Reserve University School of Medicine, Cleveland, Ohio, - - 2009
We sought to determine whether treadmill exercise time may be of value as an initial prognostic screening tool in ambulatory patients with impaired systolic function who are referred for cardiopulmonary exercise testing. We studied 2231 adult systolic heart failure patients (27% of whom were women) who underwent cardiopulmonary stress testing ...
Cay Serkan - - 2009
Exercise stress testing gives important data about autonomic nervous system activity. It has been demonstrated that heart rate profile parameters such as resting heart rate before exercise, maximum heart rate at peak exercise, heart rate increment during exercise, and heart rate decrement after exercise (heart rate recovery) are important prognostic ...
Lamberts Robert P - - 2009
The HIMS test, which consists of controlled exercise at increasing workloads, has been developed to monitor changes in training status and accumulative fatigue in athletes. As the workload can influence the day-to-day variation in heart rate, the exercise intensity, which is associated with the highest sensitivity, needs to be established ...
1 2 3 4 5 6 7 8 9 10 >