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exercise training in heart failure

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https://www.readbyqxmd.com/read/27909230/the-protective-role-of-sex-hormones-in-females-and-exercise-prehabilitation-in-males-on-sternotomy-induced-cranial-hypoperfusion-in-aortic-banded-mini-swine
#1
T Dylan Olver, Jessica A Hiemstra, Jenna C Edwards, Brian S Ferguson, Harold Laughlin, Craig A Emter
During cardiac surgery, specifically sternotomy, cranial hypoperfusion is linked to cerebral ischemia, increased risk of perioperative watershed stroke and other neurocognitive complications. The purpose of this study was to retrospectively examine the effect of sex hormones in females and exercise prehabilitation in males on median sternotomy-induced changes in cranial perfusion in a large animal model of heart failure. Cranial blood flow (CBF) before, 10- and 60 min post-sternotomy was analyzed in eight groups of Yucatan mini-swine: female-control, aortic-banded, ovariectomized, and ovariectomized+aortic-banded; male-control, aortic-banded, aortic-banded+continuous exercise trained, and aortic-banded+interval exercise trained...
December 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27895476/community-based-exercise-training-for-people-with-chronic-respiratory-and-chronic-cardiac-disease-a-mixed-methods-evaluation
#2
Renae J McNamara, Zoe J McKeough, Laura R Mo, Jamie T Dallimore, Sarah M Dennis
BACKGROUND: Poor uptake and adherence are problematic for hospital-based pulmonary and heart failure rehabilitation programs, often because of access difficulties. The aims of this mixed-methods study were to determine the feasibility of a supervised exercise training program in a community gymnasium in people with chronic respiratory and chronic cardiac disease, to explore the experiences of participants and physiotherapists and to determine if a community venue improved access and adherence to rehabilitation...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27895211/improvement-in-aerobic-capacity-during-cardiac-rehabilitation-in-coronary-artery-disease-patients-is-there-a-role-for-autonomic-adaptations
#3
Davide Lazzeroni, Paolo Castiglioni, Matteo Bini, Andrea Faini, Umberto Camaiora, Pietro Tito Ugolotti, Claudio Stefano Centorbi, Lorenzo Brambilla, Valerio Brambilla, Massimo Francesco Piepoli, Paolo Coruzzi
BACKGROUND: It has been previously shown in patients with heart failure that exercise-based rehabilitation programmes may improve functional capacity and autonomic response. The aim of this study was to investigate this issue further by evaluating whether an association exists between autonomic adaptations and improvements of aerobic capacity in a general population of coronary artery disease patients undergoing cardiac rehabilitation. METHODS: Ninety consecutive patients (age 60 ± 11 years) attended a rehabilitation programme of moderate continuous training (25 ± 8 sessions, 2-3 sessions/week)...
November 28, 2016: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/27858257/maximal-oxygen-uptake-and-exercise-tolerance-are-improved-in-rats-with-heart-failure-subjected-to-low-level-laser-therapy-associated-with-resistance-training
#4
Vítor Scotta Hentschke, Lucas Capalonga, Douglas Dalcin Rossato, Júlia Luíza Perini, Jadson Pereira Alves, Giuseppe Potrick Stefani, Marlus Karsten, Mauro Pontes, Pedro Dal Lago
Exercise tolerance and maximal oxygen uptake (VO2max) are reduced in heart failure (HF). The influence of combined resistance training (RT) and low-level laser therapy (LLLT) on exercise tolerance and VO2max in HF has not yet been explored. The aim of this study was to evaluate the influence of combined RT and LLLT on VO2max and exercise tolerance in rats with HF induced by myocardial infarction (MI). Rats were allocated to sedentary sham (Sed-Sham, n = 12), sedentary heart failure (Sed-HF, n = 9), RT heart failure (RT-HF, n = 7) and RT associated with LLLT heart failure (RT + LLLT-HF, n = 7) groups...
November 17, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27815508/pathophysiology-of-exercise-intolerance-in-breast-cancer-survivors-with-preserved-left-ventricular-ejection-fraction
#5
REVIEW
Mark J Haykowsky, Rhys Beaudry, R Matthew Brothers, Michael D Nelson, Satyam Sarma, Andre La Gerche
Breast cancer (BC) survival rates have improved during the past two decades and as a result older BC survivors are at increased risk of developing heart failure (HF). Although the HF phenotype common to BC survivors has received little attention, BC survivors have a number of risk factors associated with HF and preserved ejection fraction (HFPEF) including older age, hypertension, obesity, metabolic syndrome and sedentary lifestyle. Moreover, not unlike HFPEF, BC survivors with preserved left ventricular ejection fraction (BCPEF) have reduced exercise tolerance measured objectively as decreased peak oxygen uptake (peak VO2)...
December 1, 2016: Clinical Science (1979-)
https://www.readbyqxmd.com/read/27798024/rehabilitation-enablement-in-chronic-heart-failure-a-facilitated-self-care-rehabilitation-intervention-in-patients-with-heart-failure-with-preserved-ejection-fraction-reach-hfpef-and-their-caregivers-rationale-and-protocol-for-a-single-centre-pilot-randomised
#6
V Eyre, C C Lang, K Smith, K Jolly, R Davis, C Hayward, J Wingham, C Abraham, C Green, F C Warren, N Britten, C J Greaves, P Doherty, J Austin, R Van Lingen, S Singh, S Buckingham, K Paul, R S Taylor, H M Dalal
INTRODUCTION: The Rehabilitation EnAblement in CHronic Heart Failure in patients with Heart Failure (HF) with preserved ejection fraction (REACH-HFpEF) pilot trial is part of a research programme designed to develop and evaluate a facilitated, home-based, self-help rehabilitation intervention to improve self-care and quality of life (QoL) in heart failure patients and their caregivers. We will assess the feasibility of a definitive trial of the REACH-HF intervention in patients with HFpEF and their caregivers...
October 25, 2016: BMJ Open
https://www.readbyqxmd.com/read/27782354/effects-of-enhanced-external-counterpulsation-on-skeletal-muscle-gene-expression-in-patients-with-severe-heart-failure
#7
Michael Melin, Andreas Montelius, Lars Rydén, Adrian Gonon, Inger Hagerman, Eric Rullman
Enhanced external counterpulsation (EECP) is a non-invasive treatment in which leg cuff compressions increase diastolic aortic pressure and coronary perfusion. EECP is offered to patients with refractory angina pectoris and increases physical capacity. Benefits in heart failure patients have been noted, but EECP is still considered to be experimental and its effects must be confirmed. The mechanism of action is still unclear. The aim of this study was to evaluate the effect of EECP on skeletal muscle gene expression and physical performance in patients with severe heart failure...
October 26, 2016: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/27767984/the-optimum-hematocrit
#8
Walter H Reinhart
The hematocrit (Hct) determines the oxygen carrying capacity of blood, but also increases blood viscosity and thus flow resistance. From this dual role the concept of an optimum Hct for tissue oxygenation has been derived. Viscometric studies using the ratio Hct/blood viscosity at high shear rate showed an optimum Hct of 50-60% for red blood cell (RBC) suspensions in plasma. For the perfusion of an artificial microvascular network with 5-70μm channels the optimum Hct was 60-70% for high driving pressures. With lower shear rates or driving pressures the optimum Hct shifted towards lower values...
October 21, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27753997/ed-07-2-to-lift-walk-or-run-what-is-the-optimal-mode-of-exercise-to-reduce-hypertension-and-prevent-cardiovascular-disease
#9
Peter Kokkinos
A plethora of evidence exists supporting that structured aerobic exercise or activities that increase cardiorespiratory fitness (CRF) lower resting blood pressure (BP) in patients with hypertension (HTN). Relatively few studies have assessed the effects of anaerobic or resistance exercise on BP. Thus, its role in managing HTN is not defined. Also, possible risks related with exercise in hypertensive patients have not been adequately addressed.In addition to lowering BP, CRF attenuates the incidence of HTN. A substantial part of the age-related progression to HTN is not an inevitable outcome of aging as once thought, but a consequence of lifestyle characterized by high-fat/salt diets and physical inactivity...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27750131/exercise-training-effects-on-elderly-and-middle-age-patients-with-chronic-heart-failure-after-acute-decompensation-a-randomized-controlled-trial
#10
Domenico Acanfora, Pietro Scicchitano, Gerardo Casucci, Bernardo Lanzillo, Nicola Capuano, Giuseppe Furgi, Chiara Acanfora, Marialaura Longobardi, Raffaele Antonelli Incalzi, Giuseppe Piscosquito, Marco Matteo Ciccone
BACKGROUND: The aim of this study was to evaluate the effect of exercise training on cardiac function in heart failure (HF) patients recently suffering from acute decompensation. Radionuclide ambulatory ventricular function monitoring (VEST) was used to detect variations in cardiac hemodynamics during training period. METHODS: This was a monocentric, randomized, controlled trial. We enrolled 72 HF patients [left ventricle ejection fraction (LVEF) <40%] within two weeks after acute cardiogenic pulmonary edema: 40 in the elderly group, 32 in the middle-aged group...
October 11, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27748503/neuromuscular-electrical-stimulation-for-muscle-weakness-in-adults-with-advanced-disease
#11
REVIEW
Sarah Jones, William D-C Man, Wei Gao, Irene J Higginson, Andrew Wilcock, Matthew Maddocks
BACKGROUND: This review is an update of a previously published review in the Cochrane Database of Systematic Reviews Issue 1, 2013 on Neuromuscular electrical stimulation for muscle weakness in adults with advanced disease.Patients with advanced progressive disease often experience muscle weakness, which can impact adversely on their ability to be independent and their quality of life. In those patients who are unable or unwilling to undertake whole-body exercise, neuromuscular electrical stimulation (NMES) may be an alternative treatment to enhance lower limb muscle strength...
October 17, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27748473/exercise-training-in-heart-failure-patients-with-preserved-ejection-fraction-a-systematic-review-and-meta-analysis
#12
Erick Chan, Francesco Giallauria, Carlo Vigorito, Neil A Smart
Exercise training induces physical adaptations for heart failure patients with systolic dysfunction but less is known about those patients with preserved ejection fraction. This study's aims were to establish if exercise training produces changes in peak VO2 and related measures, quality of life, general health and diastolic function in heart failure patients with preserved ejection fraction (HFpEF). We conducted a MEDLINE search (1985 to September 1, 2015), for exercise based rehabilitation trials in heart failure, using search terms 'exercise training, heart failure with preserved ejection fraction, heart failure with  normal ejection fraction, peak VO2 and diastolic heart dysfunction'...
October 14, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/27748470/exercise-training-modalities-in-chronic-heart-failure-does-high-intensity-aerobic-interval-training-make-the-difference
#13
Francesco Giallauria, Neil Andrew Smart, Antonio Cittadini, Carlo Vigorito
Exercise training (ET) is strongly recommended in patients with chronic heart failure (CHF). Moderate-intensity aerobic continuous ET is the best established training modality in CHF patients. In the last decade, however, high-intensity interval exercise training (HIIT) has aroused considerable interest in cardiac rehabilitation community. Basically, HIIT consists of repeated bouts of high-intensity exercise alternated with recovery periods. In CHF patients, HIIT exerts larger improvements in exercise capacity compared to moderate-continuous ET...
October 14, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/27748469/imaging-predictive-factors-and-exercise-training-in-crt-patients
#14
Ana Abreu, Helena Santa Clara
Cardiac resynchronization therapy (CRT) is an established treatment for patients with moderate-to-severe chronic heart failure (CHF) and intraventricular conduction delay, which is identified by a QRS interval of 120msec or more on a 12-lead electrocardiogram (ECG). CRT improved functional capacity, reduced hospitalizations for worsening CHF and increased survival. However, about 30-40% of patients who underwent CRT were non-responders with no clinical or echocardiographic improvement. Imaging parameters for prediction of CRT response have been reviewed...
October 14, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/27748467/cardiac-rehabilitation-in-patients-with-pacemakers-and-implantable-cardioverter-defibrillators
#15
Marie Christine Iliou, Jean Christophe Blanchard, Aurélia Lamar-Tanguy, Pascal Cristofini, François Ledru
Large subsets of patients admitted in cardiac rehabilitation centers are having a pacemaker, cardiac resynchronization (CRT) or implantable cardiac defibrillator (ICD). Cardiac rehabilitation for patients, mostly with heart failure, with implanted electronic devices as pacemakers or ICD is a unique opportunity not only to optimize the medical treatment, to increase their exercise capacity and improves their clinical condition but also to supervise the correct functioning of the device. CRT reduces clinical symptoms and increases slightly the exercise capacity...
October 14, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
https://www.readbyqxmd.com/read/27728864/neuromuscular-electrical-stimulation-for-muscle-wasting-in-heart-failure-patients
#16
Masakazu Saitoh, Marcelo Rodrigues Dos Santos, Markus Anker, Stefan D Anker, Stephan von Haehling, Jochen Springer
Neuromuscular electrical stimulation (NMES) seems to be safe and beneficial in improvement in functional capacity, muscle strength, and quality of life when compared with conventional aerobic exercise, while the change in muscle fiber composition and muscle size was conflicting in patients with heart failure (HF). Moreover, NMES studies seem to have beneficial effects on pro-inflammatory cytokine, oxidative enzyme activity, and protein anabolic and catabolic metabolism that are the key molecular mechanism of muscle wasting in patients with HF...
October 1, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27693420/association-between-six-minute-walk-distance-and-objective-variables-of-functional-capacity-after-exercise-training-in-elderly-heart-failure-patients-with-preserved-ejection-fraction-a-randomized-exercise-trial
#17
Sara Maldonado-Martín, Peter H Brubaker, Joel Eggebeen, Kathryn P Stewart, Dalane W Kitzman
OBJECTIVE: To evaluate the change in six-minute walk test (6-MWT) relative to changes in key functional capacity measures after 16-week of exercise training in older (>65 years) heart failure with preserved ejection fraction (HFpEF) patients. DESIGN: Prospective, randomized single blinded (by researchers to patient group) comparison of two groups of HFpEF patients. SETTINGS: Hospital and clinic records. Ambulatory outpatients. PARTICIPANTS: Participants (N=47) randomized to attention control (n=24, AC) or exercise training (n=23, ET) group INTERVENTION: The ET group performed cycling and walking at 50-70% VO2peak intensity (3 days per week, 60 min each session)...
September 27, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27692119/heart-failure-exercise-based-cardiac-rehabilitation-who-when-and-how-intense
#18
Mark J Haykowsky, Kathryn M Daniel, Paul S Bhella, Satyam Sarma, Dalane W Kitzman
The primary chronic symptom in patients with clinically stable heart failure (HF) is reduced exercise tolerance, measured as decreased peak aerobic power (peak oxygen consumption [Vo2]), and is associated with reduced quality of life and survival. Exercise-based cardiac rehabilitation (EBCR) is a safe and effective intervention to improve peak Vo2, muscle strength, physical functional performance, and quality of life and is associated with a reduction in overall and HF-specific hospitalization in clinically stable patients with HF...
October 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27676142/post-exercise-neurovascular-control-in-chronic-heart-failure-patients
#19
T S Nobre, R V Groehs, L F Azevedo, L M Antunes-Correa, D G Martinez, M J N N Alves, C E Negrao
It remains unknown whether or not a reduction in muscle sympathetic nerve activity in heart failure patients is associated over time with the effects of long- or short-term repeated exercise. 10 chronic heart failure patients, age 49±3 years old, functional class I-III NYHA, ejection fraction <40% were randomly submitted to either an acute bout of moderate continuous exercise OR high-intensity interval exercise. Muscle sympathetic nerve activity (microneurography) and forearm blood flow (venous occlusion plethysmography) were evaluated pre- and post-exercise sessions...
December 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27671166/adherence-to-recommended-exercise-guidelines-in-patients-with-heart-failure
#20
Pallav Deka, Bunny Pozehl, Mark A Williams, Bernice Yates
Exercise training has been shown to be beneficial in patients with heart failure, and its effectiveness is connected to adherence to the exercise program. Nonetheless, adherence to exercise in these patients remains a concern. Heart failure patients can be considered adherent to an exercise program if they meet 80 % of the recommended dose. We summarize exercise recommendations for patients with heart failure, identify exercise prescription methodologies used in studies that have reported exercise adherence, identify strategies and tools used to improve adherence and examine whether these strategies were developed using a theoretical platform with the primary aim to change behavior and improve adherence to exercise...
September 26, 2016: Heart Failure Reviews
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