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Watanabe T, Tohyama T, Ikeda M, Fujino T, Hashimoto T, Matsushima S, Kishimoto J, Todaka K, Kinugawa S, Tsutsui H, Ide T. Development of deep-learning models for real-time anaerobic threshold and peak VO2 prediction during cardiopulmonary exercise testing. Eur J Prev Cardiol 2024; 31:448-457. [PMID: 38078901 DOI: 10.1093/eurjpc/zwad375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 09/27/2023] [Accepted: 12/03/2023] [Indexed: 01/26/2024]
Abstract
AIMS Exercise intolerance is a clinical feature of patients with heart failure (HF). Cardiopulmonary exercise testing (CPET) is the first-line examination for assessing exercise capacity in patients with HF. However, the need for extensive experience in assessing anaerobic threshold (AT) and the potential risk associated with the excessive exercise load when measuring peak oxygen uptake (peak VO2) limit the utility of CPET. This study aimed to use deep-learning approaches to identify AT in real time during testing (defined as real-time AT) and to predict peak VO2 at real-time AT. METHODS AND RESULTS This study included the time-series data of CPET recorded at the Department of Cardiovascular Medicine, Kyushu University Hospital. Two deep neural network models were developed to: (i) estimate the AT probability using breath-by-breath data and (ii) predict peak VO2 using the data at the real-time AT. The eligible CPET contained 1472 records of 1053 participants aged 18-90 years and 20% were used for model evaluation. The developed model identified real-time AT with 0.82 for correlation coefficient (Corr) and 1.20 mL/kg/min for mean absolute error (MAE), and the corresponding AT time with 0.86 for Corr and 0.66 min for MAE. The peak VO2 prediction model achieved 0.87 for Corr and 2.25 mL/kg/min for MAE. CONCLUSION Deep-learning models for real-time CPET analysis can accurately identify AT and predict peak VO2. The developed models can be a competent assistant system to assess a patient's condition in real time, expanding CPET utility.
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Affiliation(s)
- Tatsuya Watanabe
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takeshi Tohyama
- Centre for Advanced Medical Open Innovation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka 812-8582, Japan
| | - Masataka Ikeda
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takeo Fujino
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Toru Hashimoto
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Shouji Matsushima
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Junji Kishimoto
- Centre for Clinical and Translational Research of Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka 812-8582, Japan
| | - Koji Todaka
- Centre for Advanced Medical Open Innovation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka 812-8582, Japan
- Centre for Clinical and Translational Research of Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka 812-8582, Japan
| | - Shintaro Kinugawa
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- School of Medicine and Graduate School, International University of Health and Welfare, 141-11 Sakami, Okawa-shi, Fukuoka 831-0016, Japan
| | - Tomomi Ide
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
- Division of Cardiovascular Medicine, Research Institute of Angiocardiology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Hansen D, Beckers P, Neunhäuserer D, Bjarnason-Wehrens B, Piepoli MF, Rauch B, Völler H, Corrà U, Garcia-Porrero E, Schmid JP, Lamotte M, Doherty P, Reibis R, Niebauer J, Dendale P, Davos CH, Kouidi E, Spruit MA, Vanhees L, Cornelissen V, Edelmann F, Barna O, Stettler C, Tonoli C, Greco E, Pedretti R, Abreu A, Ambrosetti M, Braga SS, Bussotti M, Faggiano P, Takken T, Vigorito C, Schwaab B, Coninx K. Standardised Exercise Prescription for Patients with Chronic Coronary Syndrome and/or Heart Failure: A Consensus Statement from the EXPERT Working Group. Sports Med 2023; 53:2013-2037. [PMID: 37648876 DOI: 10.1007/s40279-023-01909-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 09/01/2023]
Abstract
Whereas exercise training, as part of multidisciplinary rehabilitation, is a key component in the management of patients with chronic coronary syndrome (CCS) and/or congestive heart failure (CHF), physicians and exercise professionals disagree among themselves on the type and characteristics of the exercise to be prescribed to these patients, and the exercise prescriptions are not consistent with the international guidelines. This impacts the efficacy and quality of the intervention of rehabilitation. To overcome these barriers, a digital training and decision support system [i.e. EXercise Prescription in Everyday practice & Rehabilitative Training (EXPERT) tool], i.e. a stepwise aid to exercise prescription in patients with CCS and/or CHF, affected by concomitant risk factors and comorbidities, in the setting of multidisciplinary rehabilitation, was developed. The EXPERT working group members reviewed the literature and formulated exercise recommendations (exercise training intensity, frequency, volume, type, session and programme duration) and safety precautions for CCS and/or CHF (including heart transplantation). Also, highly prevalent comorbidities (e.g. peripheral arterial disease) or cardiac devices (e.g. pacemaker, implanted cardioverter defibrillator, left-ventricular assist device) were considered, as well as indications for the in-hospital phase (e.g. after coronary revascularisation or hospitalisation for CHF). The contributions of physical fitness, medications and adverse events during exercise testing were also considered. The EXPERT tool was developed on the basis of this evidence. In this paper, the exercise prescriptions for patients with CCS and/or CHF formulated for the EXPERT tool are presented. Finally, to demonstrate how the EXPERT tool proposes exercise prescriptions in patients with CCS and/or CHF with different combinations of CVD risk factors, three patient cases with solutions are presented.
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Affiliation(s)
- Dominique Hansen
- Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium.
- UHasselt, BIOMED (Biomedical Research Institute) and REVAL (Rehabilitation Research Centre) (REVAL/BIOMED), Hasselt University, Agoralaan Building A, 3590, Diepenbeek, Belgium.
| | - Paul Beckers
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
- Translational Pathophysiological Research, Antwerp University, Antwerp, Belgium
| | - Daniel Neunhäuserer
- Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Padua, Italy
| | - Birna Bjarnason-Wehrens
- Department of Preventive and Rehabilitative Sport and Exercise Medicine, Institute for Cardiology and Sports Medicine, German Sports University, Cologne, Germany
| | - Massimo F Piepoli
- Clinical Cardiology, IRCCS Policlinico San Donato, Milan, Italy
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Bernhard Rauch
- Institut für Herzinfarktforschung Ludwigshafen, Ludwigshafen am Rhein/Stiftung Institut für Herzinfarktforschung Ludwigshafen, Ludwigshafen am Rhein/Zentrum für Ambulante Rehabilitation, ZAR Trier, Trier, Germany
| | - Heinz Völler
- Department of Cardiology, Klinik am See, Rüdersdorf, Germany
- Center of Rehabilitation Research, University of Potsdam, Potsdam, Germany
| | - Ugo Corrà
- Cardiologic Rehabilitation Department, Istituti Clinici Scientifici Salvatore Maugeri, SPA, SB, Scientific Institute of di Veruno, IRCCS, Veruno, NO, Italy
| | | | - Jean-Paul Schmid
- Department of Cardiology, Clinic Barmelweid, Barmelweid, Switzerland
| | | | | | - Rona Reibis
- Cardiological Outpatient Clinics at the Park Sanssouci, Potsdam, Germany
| | - Josef Niebauer
- Institute of Sports Medicine, Prevention and Rehabilitation, Research Institute of Molecular Sports Medicine and Rehabilitation, Rehab-Center Salzburg, Ludwig Boltzmann Institute for Digital Health and Prevention, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Paul Dendale
- Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium
- UHasselt, BIOMED (Biomedical Research Institute) and REVAL (Rehabilitation Research Centre) (REVAL/BIOMED), Hasselt University, Agoralaan Building A, 3590, Diepenbeek, Belgium
| | - Constantinos H Davos
- Cardiovascular Research Laboratory, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Evangelia Kouidi
- Laboratory of Sports Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Martijn A Spruit
- UHasselt, BIOMED (Biomedical Research Institute) and REVAL (Rehabilitation Research Centre) (REVAL/BIOMED), Hasselt University, Agoralaan Building A, 3590, Diepenbeek, Belgium
- Department of Research & Education; CIRO+, Centre of Expertise for Chronic Organ Failure, Horn/Department of Respiratory Medicine, Maastricht University Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Luc Vanhees
- Research Group of Cardiovascular Rehabilitation, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, Belgium
- Department Rehabilitation Sciences, University Leuven, Leuven, Belgium
| | - Véronique Cornelissen
- Research Group of Cardiovascular Rehabilitation, Department of Rehabilitation Sciences, Faculty of Kinesiology and Rehabilitation Sciences, KU Leuven, Leuven, Belgium
- Department Rehabilitation Sciences, University Leuven, Leuven, Belgium
| | - Frank Edelmann
- Department of Cardiology, Angiology and Intensive Care, Deutsches Herzzentrum der Charité (DHZC), Charité-Universitaetsmedizin Berlin, Campus Virchow Klinikum, Berlin, Germany
| | - Olga Barna
- Family Medicine Department, National O.O. Bogomolets Medical University, Kiev, Ukraine
| | - Christoph Stettler
- Division of Endocrinology, Diabetes and Clinical Nutrion, University Hospital/Inselspital, Bern, Switzerland
| | - Cajsa Tonoli
- Movement Control and Neuroplasticity Research Group, Department of Movement Sciences, Faculty of Movement and Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | | | | | - Ana Abreu
- Centre of Cardiovascular RehabilitationCardiology Department, Centro Universitário Hospitalar Lisboa Norte & Faculdade de Medicina da Universidade Lisboa/Instituto Saúde Ambiental & Instituto Medicina Preventiva, Faculdade Medicina da Universidade Lisboa/CCUL/CAML, Lisbon, Portugal
| | - Marco Ambrosetti
- Cardiovascular Rehabilitation Unit, Le Terrazze Clinic, Cunardo, Italy
| | | | - Maurizio Bussotti
- Unit of Cardiorespiratory Rehabilitation, Instituti Clinici Maugeri, IRCCS, Institute of Milan, Milan, Italy
| | | | - Tim Takken
- Division of Pediatrics, Child Development & Exercise Center, Wilhelmina Children's Hospital, UMC Utrecht, Utrecht, The Netherlands
| | - Carlo Vigorito
- Department of Translational Medical Sciences, Internal Medicine and Cardiac Rehabilitation, University of Naples Federico II, Naples, Italy
| | - Bernhard Schwaab
- Curschmann Clinic, Rehabilitation Center for Cardiology, Vascular Diseases and Diabetes, Timmendorfer Strand/Medical Faculty, University of Lübeck, Lübeck, Germany
| | - Karin Coninx
- UHasselt, Faculty of Sciences, Human-Computer Interaction and eHealth, Hasselt University, Hasselt, Belgium
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Relationships among norepinephrine levels, exercise capacity, and chronotropic responses in heart failure patients. Heart Fail Rev 2023; 28:35-45. [PMID: 35325323 DOI: 10.1007/s10741-022-10232-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/15/2022] [Indexed: 02/07/2023]
Abstract
In heart failure (HF) patients, the pathophysiological mechanisms of severe exercise intolerance and impaired exercise capacity are related to both central and peripheral abnormalities. The central abnormalities in HF patients include impaired cardiac function and chronotropic incompetence (CI). Indeed, CI, the inability to adequately increase heart rate (HR) from rest to exercise often exhibited by HF patients, is related to activation of the sympathetic nervous system (SNS) yielding a rise in circulating norepinephrine (NE). CI may result from downregulation of β-adrenergic receptors, β-blocker usage, high baseline HR, or due to a combination of factors. This paper discusses the role of elevated NE in altering chronotropic responses in HF patients and consequently resulting in impaired exercise capacity. We suggest that future research should focus on the potential treatment of CI with rate-adaptive pacing, using a sensor to measure physical activity, without inducing deleterious hormonal activation of the sympathetic system.
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Resistance Training in Patients With Coronary Artery Disease, Heart Failure, and Valvular Heart Disease: A REVIEW WITH SPECIAL EMPHASIS ON OLD AGE, FRAILTY, AND PHYSICAL LIMITATIONS. J Cardiopulm Rehabil Prev 2022; 42:304-315. [PMID: 36044760 DOI: 10.1097/hcr.0000000000000730] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE Current guidelines recommend individually adapted resistance training (RT) as a part of the exercise regime in patients with cardiovascular diseases. The aim of this review was to provide insights into current knowledge and understanding of how useful, feasible, safe, and effective RT is in patients with coronary artery disease (CAD), heart failure (HF), and valvular heart disease (VHD), with particular emphasis on the role of RT in elderly and/or frail patients. REVIEW METHODS A review based on an intensive literature search: systematic reviews and meta-analyses published in 2010 or later; recent studies not integrated into meta-analyses or systematic reviews; additional manual searches. SUMMARY The results highlight the evaluation of effects and safety of RT in patients with CAD and HF with reduced ejection fraction (HFrEF) in numerous meta-analyses. In contrast, few studies have focused on RT in patients with HF with preserved ejection fraction (HFpEF) or VHD. Furthermore, few studies have addressed the feasibility and impact of RT in elderly cardiac patients, and data on the efficacy and safety of RT in frail elderly patients are limited. The review results underscore the high prevalence of age-related sarcopenia, disease-related skeletal muscle deconditioning, physical limitations, and frailty in older patients with cardiovascular diseases (CVD). They underline the need for individually tailored exercise concepts, including RT, aimed at improving functional status, mobility, physical performance and muscle strength in older patients. Furthermore, the importance of the use of assessment tools to diagnose frailty, mobility/functional capacity, and physical performance in the elderly admitted to cardiac rehabilitation is emphasized.
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Paneroni M, Scalvini S, Corrà U, Lovagnini M, Maestri R, Mazza A, Raimondo R, Agostoni P, La Rovere MT. The Impact of Cardiac Rehabilitation on Activities of Daily Life in Elderly Patients With Heart Failure. Front Physiol 2022; 12:785501. [PMID: 35069247 PMCID: PMC8766860 DOI: 10.3389/fphys.2021.785501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/30/2021] [Indexed: 12/21/2022] Open
Abstract
Background: In elderly chronic heart failure (HF) patients, activities of daily living (ADLs) require the use of a high proportion of patients’ peak aerobic capacity, heart rate, and ventilation. Objectives: To assess the effects of short-term comprehensive cardiac rehabilitation (CR) on the metabolic requirement of ADLs in elderly patients with chronic HF. Methods: The study population comprised 99 elderly chronic HF patients (mean age 72 ± 5 years, 80% male, 61% ejection fraction <40%, mean NT-proBNP 2,559 ± 4,511 pg/ml) participating in a short-term (mean days 19 ± 7) residential CR program. Before and after CR, participants, while wearing a portable ergospirometer, performed a standardized ADL battery: ADL1 (getting dressed), ADL2 (folding 8 towels), ADL3 (putting away 6 bottles), ADL4 (making a bed), ADL5 (sweeping the floor for 4 min), ADL6 (climbing 1 flight of stairs carrying a 1.5 Kg load), and ADL7 (a standard 6-min walking test). Results: After CR, task-related oxygen uptake did not change in any of the domestic ADLs. Notably, there was a significant decrease in the cumulative time required to perform ADLs (ADL 1–4 and ADL6; from 412 ± 147 to 388 ± 141 s, p = 0.001) and a reduction in maximal heart rate in ADL1 and 3 (p = 0.005 and p = 0.027, respectively). Changes occurred in the 6MWT with an increase in oxygen uptake (p = 0.005) and in the distance covered (p < 0.001) and a significant decrease in the Borg scale of dyspnea (p = 0.004). Conclusion: Elderly patients with chronic heart failure who are engaged in a short-term residential CR program improve the performance of routine ADLs.
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Affiliation(s)
- Mara Paneroni
- Respiratory Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane (Brescia), Italy
| | - Simonetta Scalvini
- Department of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Lumezzane (Brescia), Italy
| | - Ugo Corrà
- Department of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Veruno (Novara), Italy
| | - Marta Lovagnini
- Department of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Montescano (Pavia), Italy
| | - Roberto Maestri
- Department of Bioengineering, Istituti Clinici Scientifici Maugeri IRCCS, Montescano (Pavia), Italy
| | - Antonio Mazza
- Department of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Montescano (Pavia), Italy
| | - Rosa Raimondo
- Department of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Tradate (Varese), Italy
| | - Piergiuseppe Agostoni
- Department of Clinical Sciences and Community Health, Centro Cardiologico Monzino, IRCCS, University of Milan, Milan, Italy
| | - Maria Teresa La Rovere
- Department of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri IRCCS, Montescano (Pavia), Italy
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Witvrouwen I, Gevaert AB, Possemiers N, Ectors B, Stoop T, Goovaerts I, Boeren E, Hens W, Beckers PJ, Vorlat A, Heidbuchel H, Van Craenenbroeck AH, Van Craenenbroeck EM. Plasma-Derived microRNAs Are Influenced by Acute and Chronic Exercise in Patients With Heart Failure With Reduced Ejection Fraction. Front Physiol 2021; 12:736494. [PMID: 34646160 PMCID: PMC8502864 DOI: 10.3389/fphys.2021.736494] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/02/2021] [Indexed: 01/01/2023] Open
Abstract
Background: Exercise training improves VO2peak in heart failure with reduced ejection fraction (HFrEF), but the effect is highly variable as it is dependent on peripheral adaptations. We evaluated changes in plasma-derived miRNAs by acute and chronic exercise to investigate whether these can mechanistically be involved in the variability of exercise-induced adaptations. Methods: Twenty-five male HFrEF patients (left ventricular ejection fraction < 40%, New York Heart Association class ≥ II) participated in a 15-week combined strength and aerobic training program. The effect of training on plasma miRNA levels was compared to 21 male age-matched sedentary HFrEF controls. Additionally, the effect of a single acute exercise bout on plasma miRNA levels was assessed. Levels of 5 miRNAs involved in pathways relevant for exercise adaptation (miR-23a, miR-140, miR-146a, miR-191, and miR-210) were quantified using RT-qPCR and correlated with cardiopulmonary exercise test (CPET), echocardiographic, vascular function, and muscle strength variables. Results: Expression levels of miR-146a decreased with training compared to controls. Acute exercise resulted in a decrease in miR-191 before, but not after training. Baseline miR-23a predicted change in VO2peak independent of age and left ventricular ejection fraction (LVEF). Baseline miR-140 was independently correlated with change in load at the respiratory compensation point and change in body mass index, and baseline miR-146a with change in left ventricular mass index. Conclusion: Plasma-derived miRNAs may reflect the underlying mechanisms of exercise-induced adaptation. In HFrEF patients, baseline miR-23a predicted VO2peak response to training. Several miRNAs were influenced by acute or repeated exercise. These findings warrant exploration in larger patient populations and further mechanistic in vitro studies on their molecular involvement.
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Affiliation(s)
- Isabel Witvrouwen
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium.,Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Andreas B Gevaert
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium.,Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Nadine Possemiers
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium.,Cardiac Rehabilitation Centre, Antwerp University Hospital, Edegem, Belgium
| | - Bert Ectors
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Tibor Stoop
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Inge Goovaerts
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Evi Boeren
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium
| | - Wendy Hens
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium.,Cardiac Rehabilitation Centre, Antwerp University Hospital, Edegem, Belgium
| | - Paul J Beckers
- Department of Cardiology, Antwerp University Hospital, Edegem, Belgium.,Cardiac Rehabilitation Centre, Antwerp University Hospital, Edegem, Belgium
| | - Anne Vorlat
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium.,Department of Cardiology, Antwerp University Hospital, Edegem, Belgium.,Cardiac Rehabilitation Centre, Antwerp University Hospital, Edegem, Belgium
| | - Hein Heidbuchel
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium.,Department of Cardiology, Antwerp University Hospital, Edegem, Belgium.,Cardiac Rehabilitation Centre, Antwerp University Hospital, Edegem, Belgium
| | - Amaryllis H Van Craenenbroeck
- Laboratory of Experimental Medicine and Paediatrics, University of Antwerp, Antwerp, Belgium.,Department of Nephrology, University Hospitals Leuven, Leuven, Belgium
| | - Emeline M Van Craenenbroeck
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, Antwerp, Belgium.,Department of Cardiology, Antwerp University Hospital, Edegem, Belgium.,Cardiac Rehabilitation Centre, Antwerp University Hospital, Edegem, Belgium
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Turri-Silva N, Vale-Lira A, Verboven K, Quaglioti Durigan JL, Hansen D, Cipriano G. High-intensity interval training versus progressive high-intensity circuit resistance training on endothelial function and cardiorespiratory fitness in heart failure: A preliminary randomized controlled trial. PLoS One 2021; 16:e0257607. [PMID: 34597330 PMCID: PMC8486136 DOI: 10.1371/journal.pone.0257607] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 08/18/2021] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Exercise training is strongly recommended as a therapeutic approach to treat individuals with heart failure. High-intensity exercise training modalities still controversial in this population. The study aims to preliminary assess the consequences of high-intensity exercise training modalities, aerobic interval training (HIIT) and progressive high circuit-resistance training (CRT), on primarily endothelial function and cardiorespiratory fitness, and secondly on muscle strength and physical performance in heart failure patients. METHODS This preliminary multicentric randomized controlled trial comprised 23 heart failure patients, aged 56 ± 10 years old, mainly New York Heart Association classification I and II (%), hemodynamically stable, who compromise at least 36 exercise sessions of a randomly assigned intervention (HIIT, CRT or control group). Endothelial function, cardiopulmonary exercise testing, muscle strength and physical performance were completed at baseline and post-intervention. RESULTS Although no effects on endothelial function; both HIIT and CRT modalities were able to produce a positive effect on [Formula: see text] peak (HIIT = +2.1±6.5, CRT = +3.0±4.2 and control group = -0.1± 5.3 mL/kg/min, time*group p-value<0,05) and METs (HIIT = +0.6±1.8, CRT = +0.9±1.2 and control group = 0±1.6, time*group p-value<0,05). Only HIIT increased isokinetic torque peak (HIIT = +8.8±55.8, CRT = 0.0±60.7 and control group = 1.6±57.6 Nm) matched p-value<0,05. Regarding the physical performance, the CRT modality reduced chair stand test completion time (HIIT = -0.7±3.1, CRT = -3.3±3.2 and control group = -0.3±2.5 s, matched p-value<0,05 and HIIT improved global physical performance(time*group p<0,05). CONCLUSION This preliminary study trends to indicate for the first time that high-intensity interval training promotes a jointly superior effect compared to progressive high intensity circuit-resistance training by improving cardiorespiratory fitness, muscular strength, and physical performance. Further research with larger cohort is necessary. CLINICAL TRIAL REGISTRATION NUMBER ReBEC RBR-668c8v.
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Affiliation(s)
- Natália Turri-Silva
- Health and Technologies in Health Sciences Program, University of Brasilia, Brasilia, Brazil
- BIOMED-REVAL (Rehabilitation Research Centre), Faculty of Rehabilitation Sciences, Hasselt University, Hasselt, Belgium
| | - Amanda Vale-Lira
- Rehabilitation Sciences Program, Faculty of Physical Education, University of Brasília, Brasilia, Brazil
| | - Kenneth Verboven
- BIOMED-REVAL (Rehabilitation Research Centre), Faculty of Rehabilitation Sciences, Hasselt University, Hasselt, Belgium
| | - João Luiz Quaglioti Durigan
- Health and Technologies in Health Sciences Program, University of Brasilia, Brasilia, Brazil
- Rehabilitation Sciences Program, Faculty of Physical Education, University of Brasília, Brasilia, Brazil
| | - Dominique Hansen
- BIOMED-REVAL (Rehabilitation Research Centre), Faculty of Rehabilitation Sciences, Hasselt University, Hasselt, Belgium
- Physical Therapy Department, University of Brasilia, Brasilia, Brazil
- Heart Centre Hasselt, Jessa Hospital, Hasselt, Belgium
| | - Gerson Cipriano
- Health and Technologies in Health Sciences Program, University of Brasilia, Brasilia, Brazil
- Rehabilitation Sciences Program, Faculty of Physical Education, University of Brasília, Brasilia, Brazil
- Physical Therapy Department, University of Brasilia, Brasilia, Brazil
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8
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Chaveles I, Papazachou O, Shamari MA, Delis D, Ntalianis A, Panagopoulou N, Nanas S, Karatzanos E. Effects of exercise training on diastolic and systolic dysfunction in patients with chronic heart failure. World J Cardiol 2021; 13:514-525. [PMID: 34621496 PMCID: PMC8462045 DOI: 10.4330/wjc.v13.i9.514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/26/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Chronic heart failure (CHF) is a complex syndrome characterized by a progressive reduction of the left ventricular (LV) contractility, low exercise tolerance, and increased mortality and morbidity. Diastolic dysfunction (DD) of the LV, is a keystone in the pathophysiology of CHF and plays a major role in the progression of most cardiac diseases. Also, it is well estimated that exercise training induces several beneficial effects on patients with CHF.
AIM To evaluate the impact of a cardiac rehabilitation program on the DD and LV ejection fraction (EF) in patients with CHF.
METHODS Thirty-two stable patients with CHF (age: 56 ± 10 years, EF: 32% ± 8%, 88% men) participated in an exercise rehabilitation program. They were randomly assigned to aerobic exercise (AER) or combined aerobic and strength training (COM), based on age and peak oxygen uptake, as stratified randomization criteria. Before and after the program, they underwent a symptom-limited maximal cardiopulmonary exercise testing (CPET) and serial echocardiography evaluation to evaluate peak oxygen uptake (VO2peak), peak workload (Wpeak), DD grade, right ventricular systolic pressure (RVSP), and EF.
RESULTS The whole cohort improved VO2peak, and Wpeak, as well as DD grade (P < 0.05). Overall, 9 patients (28.1%) improved DD grade, while 23 (71.9%) remained at the same DD grade; this was a significant difference, considering DD grade at baseline (P < 0.05). In addition, the whole cohort improved RVSP and EF (P < 0.05). Not any between-group differences were observed in the variables assessed (P > 0.05).
CONCLUSION Exercise rehabilitation improves indices of diastolic and systolic dysfunction. Exercise protocol was not observed to affect outcomes. These results need to be further investigated in larger samples.
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Affiliation(s)
- Ioannis Chaveles
- 1st Department of Cardiology - Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, “Evaggelismos” Hospital, Athens 10676, Greece
| | - Ourania Papazachou
- Department of Cardiology, ”Helena Venizelou” Hospital, Athens 10676, Greece
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, ”Evaggelismos” Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens 10676, Greece
| | - Manal al Shamari
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, ”Evaggelismos” Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens 10676, Greece
| | - Dimitrios Delis
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, ”Evaggelismos” Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens 10676, Greece
| | - Argirios Ntalianis
- Heart Failure Unit, Department of Clinical Therapeutics, ”Alexandra” Hospital, National and Kapodistrian University of Athens, Athens 11528, Greece
| | - Niki Panagopoulou
- Department of Cardiology, ”Helena Venizelou” Hospital, Athens 10676, Greece
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, ”Evaggelismos” Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens 10676, Greece
| | - Serafim Nanas
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, ”Evaggelismos” Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens 10676, Greece
| | - Eleftherios Karatzanos
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, ”Evaggelismos” Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens 10676, Greece
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9
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Abstract
PURPOSE OF REVIEW Heart failure (HF) is a structural or functional cardiac abnormality which leads to failure of the heart to deliver oxygen commensurately with the requirements of the tissues and it may progress to a generalized wasting of skeletal muscle, fat tissue, and bone tissue (cardiac cachexia). Clinically, dyspnea, fatigue, and exercise intolerance are some typical signs and symptoms that characterize HF patients. This review focused on the phenotypic characteristics of HF-induced skeletal myopathy as well as the mechanisms of muscle wasting due to HF and highlighted possible therapeutic strategies for skeletal muscle wasting in HF. RECENT FINDINGS The impaired exercise capacity of those patients is not attributed to the reduced blood flow in the exercising muscles, but rather to abnormal metabolic responses, myocyte apoptosis and atrophy of skeletal muscle. Specifically, the development of skeletal muscle wasting in chronic HF is characterized by structural, metabolic, and functional abnormalities in skeletal muscle and may be a result not only of reduced physical activity, but also of metabolic or hormonal derangements that favour catabolism over anabolism. In particular, abnormal energy metabolism, mitochondrial dysfunction, transition of myofibers from type I to type II, muscle atrophy, and reduction in muscular strength are included in skeletal muscle abnormalities which play a central role in the decreased exercise capacity of HF patients. Skeletal muscle alterations and exercise intolerance observed in HF are reversible by exercise training, since it is the only demonstrated intervention able to improve skeletal muscle metabolism, growth factor activity, and functional capacity and to reverse peripheral abnormalities.
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10
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Bozkurt B, Fonarow GC, Goldberg LR, Guglin M, Josephson RA, Forman DE, Lin G, Lindenfeld J, O'Connor C, Panjrath G, Piña IL, Shah T, Sinha SS, Wolfel E. Cardiac Rehabilitation for Patients With Heart Failure: JACC Expert Panel. J Am Coll Cardiol 2021; 77:1454-1469. [PMID: 33736829 DOI: 10.1016/j.jacc.2021.01.030] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/23/2020] [Accepted: 01/04/2021] [Indexed: 02/07/2023]
Abstract
Cardiac rehabilitation is defined as a multidisciplinary program that includes exercise training, cardiac risk factor modification, psychosocial assessment, and outcomes assessment. Exercise training and other components of cardiac rehabilitation (CR) are safe and beneficial and result in significant improvements in quality of life, functional capacity, exercise performance, and heart failure (HF)-related hospitalizations in patients with HF. Despite outcome benefits, cost-effectiveness, and strong practice guideline recommendations, CR remains underused. Clinicians, health care leaders, and payers should prioritize incorporating CR as part of the standard of care for patients with HF.
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Affiliation(s)
- Biykem Bozkurt
- Winters Center for Heart Failure, Cardiovascular Research Institute, Baylor College of Medicine and DeBakey VA Medical Center, Houston, Texas, USA.
| | - Gregg C Fonarow
- Ahmanson-UCLA Cardiomyopathy Center, Division of Cardiology, University of California-Los Angeles, Los Angeles, California, USA
| | - Lee R Goldberg
- Cardiovascular Division, Perelman School of Medicine at the, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Maya Guglin
- Indiana University School of Medicine, Krannert Institute of Cardiology, Indianapolis, Indiana, USA
| | - Richard A Josephson
- Cardiovascular and Pulmonary Rehabilitation, Harrington Heart & Vascular Institute, Case Western Reserve University, Division of Cardiovascular Medicine, University Hospitals Health System, Cleveland, Ohio, USA
| | - Daniel E Forman
- Divisions of Cardiology and Geriatrics, University of Pittsburgh and VA Pittsburgh Health Care System, Pittsburgh, Pennsylvania, USA
| | - Grace Lin
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - JoAnn Lindenfeld
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Chris O'Connor
- Inova Heart and Vascular Institute, Inova Fairfax Medical Center, Falls Church, Virginia, USA; Duke University, Durham, North Carolina, USA
| | - Gurusher Panjrath
- Division of Cardiology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Ileana L Piña
- Wayne State University, Detroit, Michigan, USA; Central Michigan University, Mt. Pleasant, Michigan, USA
| | - Tina Shah
- Department of Cardiology, Kaiser Permanente Washington, Seattle, Washington, USA
| | - Shashank S Sinha
- Inova Heart and Vascular Institute, Inova Fairfax Medical Center, Falls Church, Virginia, USA; Duke University, Durham, North Carolina, USA
| | - Eugene Wolfel
- Section of Advanced Heart Failure and Transplant Cardiology, Division of Cardiology, University of Colorado School of Medicine, Aurora, Colorado, USA
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11
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Poole DC, Behnke BJ, Musch TI. The role of vascular function on exercise capacity in health and disease. J Physiol 2021; 599:889-910. [PMID: 31977068 PMCID: PMC7874303 DOI: 10.1113/jp278931] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 12/10/2019] [Indexed: 12/16/2022] Open
Abstract
Three sentinel parameters of aerobic performance are the maximal oxygen uptake ( V ̇ O 2 max ), critical power (CP) and speed of the V ̇ O 2 kinetics following exercise onset. Of these, the latter is, perhaps, the cardinal test of integrated function along the O2 transport pathway from lungs to skeletal muscle mitochondria. Fast V ̇ O 2 kinetics demands that the cardiovascular system distributes exercise-induced blood flow elevations among and within those vascular beds subserving the contracting muscle(s). Ideally, this process must occur at least as rapidly as mitochondrial metabolism elevates V ̇ O 2 . Chronic disease and ageing create an O2 delivery (i.e. blood flow × arterial [O2 ], Q ̇ O 2 ) dependency that slows V ̇ O 2 kinetics, decreasing CP and V ̇ O 2 max , increasing the O2 deficit and sowing the seeds of exercise intolerance. Exercise training, in contrast, does the opposite. Within the context of these three parameters (see Graphical Abstract), this brief review examines the training-induced plasticity of key elements in the O2 transport pathway. It asks how structural and functional vascular adaptations accelerate and redistribute muscle Q ̇ O 2 and thus defend microvascular O2 partial pressures and capillary blood-myocyte O2 diffusion across a ∼100-fold range of muscle V ̇ O 2 values. Recent discoveries, especially in the muscle microcirculation and Q ̇ O 2 -to- V ̇ O 2 heterogeneity, are integrated with the O2 transport pathway to appreciate how local and systemic vascular control helps defend V ̇ O 2 kinetics and determine CP and V ̇ O 2 max in health and how vascular dysfunction in disease predicates exercise intolerance. Finally, the latest evidence that nitrate supplementation improves vascular and therefore aerobic function in health and disease is presented.
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Affiliation(s)
- David C Poole
- Departments of Kinesiology and Anatomy and Physiology, Kansas State University, Manhattan, KS, 66506, USA
| | - Brad J Behnke
- Departments of Kinesiology and Anatomy and Physiology, Kansas State University, Manhattan, KS, 66506, USA
| | - Timothy I Musch
- Departments of Kinesiology and Anatomy and Physiology, Kansas State University, Manhattan, KS, 66506, USA
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12
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Azambuja ADCM, de Oliveira LZ, Sbruzzi G. Inspiratory Muscle Training in Patients With Heart Failure: What Is New? Systematic Review and Meta-Analysis. Phys Ther 2020; 100:2099-2109. [PMID: 32936904 DOI: 10.1093/ptj/pzaa171] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/28/2020] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The benefits of inspiratory muscle training (IMT) have already been demonstrated in patients with heart failure (HF), but the best mode of training and which patients benefit from this intervention are not clear. The purpose of this study was to review the effects of IMT on respiratory muscle strength, functional capacity, pulmonary function, quality of life, and dyspnea in patients with HF; IMT isolated or combined with another intervention (combined IMT), the presence of inspiratory muscle weakness, training load, and intervention time were considered. METHODS The search included the databases MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Physiotherapy Evidence Database, and LILACS database through September 2019. The review included randomized studies that assessed IMT in isolation or combined with another intervention-in comparison with a control group, a placebo, or another intervention-in patients with HF. Fourteen studies were included, 13 for meta-analysis (10 for isolated IMT and 3 for combined IMT). RESULTS Isolated IMT demonstrated an increase in maximal inspiratory pressure (MIP) (25.12 cm H2O; 95% CI = 15.29 - 34.95), 6-Minute Walk Test (81.18 m; 95% CI = 9.73 - 152.63), maximum oxygen consumption (12 weeks: 3.75 mL/kg/min; 95% CI = 2.98 to 4.51), and quality of life (-20.68; 95% CI = -29.03 to -12.32). The presence of inspiratory muscle weakness, higher loads, and longer intervention times resulted in greater increases in MIP. IMT combined with another intervention demonstrated an increase only in MIP. CONCLUSIONS Isolated IMT resulted in an increase in inspiratory muscle strength, functional capacity, and quality of life. IMT combined with another intervention resulted only in a small increase in inspiratory strength. Isolated IMT with higher loads can be considered an adjuvant intervention, especially for those who do not adhere to conventional rehabilitation and who have respiratory muscle weakness. IMPACT A systematic review was necessary to review the effects of IMT on respiratory muscle strength, lung function, functional capacity, quality of life, and dyspnea in patients with HF. Various clinical issues important for a better training prescription were considered; these included whether the performance of the training IMT as a form of isolated training benefits patients with HF, whether the combination of IMT with another intervention has additional effects, whether any patient with HF can benefit from IMT (alone or combined with another intervention), and whether only patients who already have respiratory muscle weakness benefit. Also important was establishing which training load provides the best result and the best intervention time, so that health care can be provided more efficiently. LAY SUMMARY For people with heart failure, IMT by itself, without being combined with other exercise, can improve ease of breathing, increase the amount of distance that they can walk, and improve quality of life. Inspiratory training with higher loads might be helpful for those with respiratory muscle weakness who are unable to do conventional exercise.
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Affiliation(s)
- Aline de Cassia Meine Azambuja
- Postgraduate Program in Pneumological Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; and Postgraduate Program in Human Movement Sciences, Universidade Federal do Rio Grande do Sul
| | | | - Graciele Sbruzzi
- Postgraduate Program in Pneumological Sciences, Universidade Federal do Rio Grande do Sul, R. Felizardo, 750, CEP: 90690-200, Porto Alegre RS, Brazil; and Postgraduate Program in Human Movement Sciences, Universidade Federal do Rio Grande do Su
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13
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Mapelli M, Salvioni E, Bonomi A, Gugliandolo P, De Martino F, Vignati C, Berna G, Agostoni P. How Patients With Heart Failure Perform Daily Life Activities. Circ Heart Fail 2020; 13:e007503. [DOI: 10.1161/circheartfailure.120.007503] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Cardiopulmonary exercise test and 6-minute walking test are frequently used tools to evaluate physical performance in heart failure (HF), but they do neither represent activities of daily living (ADLs) nor fully reproduce patients’ symptoms. We assessed differences in task oxygen uptake, both as absolute value and as percentage of peak oxygen consumption (peakVO
2
), ventilation efficiency (VE/VCO
2
ratio), and dyspnea intensity (Borg scale) in HF and healthy subjects during standard ADLs and other common physical actions.
Methods:
Healthy and HF subjects (ejection fraction <45%, stable conditions) underwent cardiopulmonary exercise test. All of them, carrying a wearable metabolic cart, performed a 6-minute walking test, two 4-minute treadmill exercises (at 2 and 3 km/h), and ADLs: ADL1 (getting dressed), ADL2 (folding 8 towels), ADL3 (putting away 6 bottles), ADL4 (making a bed), ADL5 (sweeping the floor for 4 minutes), ADL6 (climbing 1 flight of stairs carrying a load).
Results:
Sixty patients with HF (age 65.2±12.1 years; ejection fraction 30.4±6.7%, peakVO
2
14.2±4.0 mL/[min·kg]) and 40 healthy volunteers (58.9±8.2 years, peakVO
2
28.1±7.4 mL/[min·kg]) were enrolled. For each exercise, patients showed higher VE/VCO
2
ratio, percentage of peakVO
2
, and Borg scale value than controls, while absolute values of task oxygen uptake and exercise duration were lower and higher, respectively, in all activities, except for treadmill (fixed execution time and intensity). Differently from Borg Scale data, metabolic values and exercise time length changed in parallel with HF severity, except for ADL duration in very short (ADL3) and composite (ADL1) activities. Borg scale values correlated with percentage of peakVO
2
.
Conclusions:
During ADLs, patients self-regulated activities in parallel with HF severity by decreasing intensity (VO
2
) and prolonging the effort.
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Affiliation(s)
- Massimo Mapelli
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
- Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milano, Italy (M.M., C.V., P.A.)
| | - Elisabetta Salvioni
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
| | - Alice Bonomi
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
| | - Paola Gugliandolo
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
| | - Fabiana De Martino
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
| | - Carlo Vignati
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
- Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milano, Italy (M.M., C.V., P.A.)
| | - Giovanni Berna
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
| | - Piergiuseppe Agostoni
- Centro Cardiologico Monzino, IRCCS, Milano, Italy (M.M., E.S., A.B., P.G., F.D.M., C.V., G.B., P.A.)
- Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milano, Italy (M.M., C.V., P.A.)
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14
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Santoso A, Maulana R, Alzahra F, Prameswari HS, Ambari AM, Hartopo AB, Arso IA, Radi B. The Effects of Aerobic Exercise on N-terminal Pro-B-type Natriuretic Peptide and Cardiopulmonary Function in Patients With Heart Failure: A Meta-Analysis of Randomised Clinical Trials. Heart Lung Circ 2020; 29:1790-1798. [PMID: 32665172 DOI: 10.1016/j.hlc.2020.05.098] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 01/24/2020] [Accepted: 05/11/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND Aerobic exercise (AEx) improves outcomes in heart failure (HF). N-terminal pro B-type natriuretic peptide (NT-pro-BNP) is a prognosticator in HF. There are few data on the association of AEx, NT-pro-BNP, and cardiopulmonary function; hence, robust evidence is needed. The aim of this study was to measure the effects of AEx on NT-pro-BNP levels and cardiopulmonary function in HF. METHOD Databases (Pubmed, EMBASE, Medline, Cochrane Central Registry, and Scopus) were systematically searched for randomised controlled trials (RCTs) that assessed the association of AEx with NT-pro-BNP and cardiopulmonary function (VE/VCO2 slope, peak VO2, maximal workload, and left ventricular ejection fraction [LVEF]) in HF. RevMan 5.3 (The Nordic Cochrane Centre, The Cochrane Collaboration, Copenhagen, 2014) was used to produce forest plots, and the random-effect model was applied with the effects measure of weighted mean differences (WMD) and 95% confidence interval (CI). RESULTS Thirteen (13) RCTs recruited 1,503 patients and 1,494 controls. Aerobic exercise was significant in lowering NT-pro-BNP (pg/mL) compared with control group (WMD=-741.69, 95% CI -993.10 to -490.27 [p<0.00001; I2=63%]). VE/VCO2 slope was also significantly reduced (WMD=-3.57, 95% CI -6.48 to -0.67 [p=0.02; I2=97%]). Peak VO2 (mL/kg/min) significantly improved (WMD=3.68, 95% CI 2.39-4.96 [p<0.00001; I2=96%]). Maximal workload (watt) significantly increased following AEx (WMD=22.80, 95% CI 18.44-27.17 [p<0.00001; I2=78%]). Furthermore, there was a significant enhancement of LVEF (%) in the AEx group (WMD=2.42, 95% CI 0.64-4.19 [p=0.008; I2=71%]). CONCLUSIONS Aerobic exercise improves the NT-pro-BNP, ventilatory efficiency, aerobic capacity, maximal workload, and the left ventricular function in patients with HF.
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Affiliation(s)
- Anwar Santoso
- Department of Cardiology, Vascular Medicine, Faculty of Medicine, Universitas Indonesia, National Cardiovascular Centre, Harapan Kita Hospital, Jakarta, Indonesia.
| | - Rido Maulana
- Faculty of Medicine, University of Muhamadiyah, Jakarta, Indonesia
| | - Fatimah Alzahra
- Department of Cardiology, Vascular Medicine, Faculty of Medicine, University of Airlangga, Surabaya, Indonesia
| | - Hawani Sasmaya Prameswari
- Department of Cardiology, Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Ade Meidian Ambari
- Department of Cardiology, Vascular Medicine, Faculty of Medicine, Universitas Indonesia, National Cardiovascular Centre, Harapan Kita Hospital, Jakarta, Indonesia
| | - Anggoro Budi Hartopo
- Department of Cardiology, Vascular Medicine, Faculty of Medicine, University of Gadjah Mada, Jogyakarta, Indonesia
| | - Irsad Andi Arso
- Department of Cardiology, Vascular Medicine, Faculty of Medicine, University of Gadjah Mada, Jogyakarta, Indonesia
| | - Basuni Radi
- Department of Cardiology, Vascular Medicine, Faculty of Medicine, Universitas Indonesia, National Cardiovascular Centre, Harapan Kita Hospital, Jakarta, Indonesia
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15
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Bardi E, Majerczak J, Zoladz JA, Tyrankiewicz U, Skorka T, Chlopicki S, Jablonska M, Bar A, Jasinski K, Buso A, Salvadego D, Nieckarz Z, Grassi B, Bottinelli R, Pellegrino MA. Voluntary physical activity counteracts Chronic Heart Failure progression affecting both cardiac function and skeletal muscle in the transgenic Tgαq*44 mouse model. Physiol Rep 2020; 7:e14161. [PMID: 31267722 PMCID: PMC6606516 DOI: 10.14814/phy2.14161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 06/11/2019] [Indexed: 12/20/2022] Open
Abstract
Physical activity is emerging as an alternative nonpharmaceutical strategy to prevent and treat a variety of cardiovascular diseases due to its cardiac and skeletal muscle beneficial effects. Oxidative stress occurs in skeletal muscle of chronic heart failure (CHF) patients with possible impact on muscle function decline. We determined the effect of voluntary‐free wheel running (VFWR) in preventing protein damage in Tgαq*44 transgenic mice (Tg) characterized by a delayed CHF progression. In the early (6 months) and transition (12 months) phase of CHF, VFWR increased the daily mean distance covered by Tg mice eliminating the difference between Tg and WT present before exercise at 12 months of age (WT Pre‐EX 3.62 ± 1.66 vs. Tg Pre‐EX 1.51 ± 1.09 km, P < 0.005; WT Post‐EX 5.72 ± 3.42 vs. Tg Post‐EX 4.17 ± 1.8 km, P > 0.005). This effect was concomitant with an improvement of in vivo cardiac performance [(Cardiac Index (mL/min/cm2): 6 months, untrained‐Tg 0.167 ± 0.005 vs. trained‐Tg 0.21 ± 0.003, P < 0.005; 12 months, untrained‐Tg 0.1 ± 0.009 vs. trained‐Tg 0.133 ± 0.005, P < 0.005]. Such effects were associated with a skeletal muscle antioxidant response effective in preventing oxidative damage induced by CHF at the transition phase (untrained‐Tg 0.438 ± 0.25 vs. trained‐Tg 0.114 ± 0.010, P < 0.05) and with an increased expression of protein control markers (MuRF‐1, untrained‐Tg 1.12 ± 0.29 vs. trained‐Tg 14.14 ± 3.04, P < 0.0001; Atrogin‐1, untrained‐Tg 0.9 ± 0.38 vs. trained‐Tg 7.79 ± 2.03, P < 0.01; Cathepsin L, untrained‐Tg 0.91 ± 0.27 vs. trained‐Tg 2.14 ± 0.55, P < 0.01). At the end‐stage of CHF (14 months), trained‐Tg mice showed a worsening of physical performance (decrease in daily activity and weekly distance and time of activity) compared to trained age‐matched WT in association with oxidative protein damage of a similar level to that of untrained‐Tg mice (untrained‐Tg 0.62 ± 0.24 vs. trained‐Tg 0.64 ± 0.13, P > 0.05). Prolonged voluntary physical activity performed before the onset of CHF end‐stage, appears to be a useful tool to increase cardiac function and to reduce skeletal muscle oxidative damage counteracting physical activity decline.
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Affiliation(s)
- Eleonora Bardi
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Joanna Majerczak
- Department of Muscle Physiology, Faculty of Rehabilitation, University School of Physical Education, Krakow, Poland.,Department of Neurobiology, Poznan University of Physical Education, Poznan, Poland
| | - Jerzy A Zoladz
- Department of Muscle Physiology, Faculty of Rehabilitation, University School of Physical Education, Krakow, Poland
| | - Urszula Tyrankiewicz
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University Medical College, Krakow, Poland
| | - Tomasz Skorka
- Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University Medical College, Krakow, Poland.,Chair of Pharmacology, Jagiellonian University Medical College, Krakow, Poland
| | - Magdalena Jablonska
- Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland
| | - Anna Bar
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University Medical College, Krakow, Poland
| | - Krzysztof Jasinski
- Department of Magnetic Resonance Imaging, Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland
| | - Alessia Buso
- Department of Medicine, University of Udine, Udine, Italy
| | - Desy Salvadego
- Department of Medicine, University of Udine, Udine, Italy
| | - Zenon Nieckarz
- Department of Muscle Physiology, Faculty of Rehabilitation, University School of Physical Education, Krakow, Poland
| | - Bruno Grassi
- Department of Medicine, University of Udine, Udine, Italy.,Institute of Bioimaging and Molecular Physiology, National Research Council, Milano, Italy
| | - Roberto Bottinelli
- Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Fondazione Salvatore Maugeri (IRCCS), Scientific Institute of Pavia, Pavia, Italy.,Interdipartimental Centre for Biology and Sport Medicine, University of Pavia, Pavia, Italy
| | - Maria Antonietta Pellegrino
- Department of Molecular Medicine, University of Pavia, Pavia, Italy.,Interdipartimental Centre for Biology and Sport Medicine, University of Pavia, Pavia, Italy.,Interuniversity Institute of Myology, University of Pavia, Pavia, Italy
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16
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Di Lorenzo A, Iannuzzo G, Parlato A, Cuomo G, Testa C, Coppola M, D’Ambrosio G, Oliviero DA, Sarullo S, Vitale G, Nugara C, Sarullo FM, Giallauria F. Clinical Evidence for Q10 Coenzyme Supplementation in Heart Failure: From Energetics to Functional Improvement. J Clin Med 2020; 9:jcm9051266. [PMID: 32349341 PMCID: PMC7287951 DOI: 10.3390/jcm9051266] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/19/2020] [Accepted: 04/24/2020] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress and mitochondrial dysfunction are hallmarks of heart failure (HF). Coenzyme Q10 (CoQ10) is a vitamin-like organic compound widely expressed in humans as ubiquinol (reduced form) and ubiquinone (oxidized form). CoQ10 plays a key role in electron transport in oxidative phosphorylation of mitochondria. CoQ10 acts as a potent antioxidant, membrane stabilizer and cofactor in the production of adenosine triphosphate by oxidative phosphorylation, inhibiting the oxidation of proteins and DNA. Patients with HF showed CoQ10 deficiency; therefore, a number of clinical trials investigating the effects of CoQ10 supplementation in HF have been conducted. CoQ10 supplementation may confer potential prognostic advantages in HF patients with no adverse hemodynamic profile or safety issues. The latest evidence on the clinical effects of CoQ10 supplementation in HF was reviewed.
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Affiliation(s)
- Anna Di Lorenzo
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
| | - Gabriella Iannuzzo
- Department of Clinical Medicine and Surgery, “Federico II” University of Naples, 80131 Naples, Italy;
| | - Alessandro Parlato
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
| | - Gianluigi Cuomo
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
| | - Crescenzo Testa
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
| | - Marta Coppola
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
| | - Giuseppe D’Ambrosio
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
| | - Domenico Alessandro Oliviero
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
| | - Silvia Sarullo
- Cardiovascular Rehabilitation Unit, Buccheri La Ferla Fatebenefratelli Hospital, 90123 Palermo, Italy; (S.S.); (G.V.); (C.N.); (F.M.S.)
| | - Giuseppe Vitale
- Cardiovascular Rehabilitation Unit, Buccheri La Ferla Fatebenefratelli Hospital, 90123 Palermo, Italy; (S.S.); (G.V.); (C.N.); (F.M.S.)
| | - Cinzia Nugara
- Cardiovascular Rehabilitation Unit, Buccheri La Ferla Fatebenefratelli Hospital, 90123 Palermo, Italy; (S.S.); (G.V.); (C.N.); (F.M.S.)
| | - Filippo M. Sarullo
- Cardiovascular Rehabilitation Unit, Buccheri La Ferla Fatebenefratelli Hospital, 90123 Palermo, Italy; (S.S.); (G.V.); (C.N.); (F.M.S.)
| | - Francesco Giallauria
- Department of Translational Medical Sciences, “Federico II” University of Naples, 80131 Naples, Italy; (A.D.L.); (A.P.); (G.C.); (C.T.); (M.C.); (G.D.); (D.A.O.)
- Correspondence: ; Tel.: +39-(0)8-1746-3519
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17
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Poole DC, Copp SW, Colburn TD, Craig JC, Allen DL, Sturek M, O'Leary DS, Zucker IH, Musch TI. Guidelines for animal exercise and training protocols for cardiovascular studies. Am J Physiol Heart Circ Physiol 2020; 318:H1100-H1138. [PMID: 32196357 DOI: 10.1152/ajpheart.00697.2019] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Whole body exercise tolerance is the consummate example of integrative physiological function among the metabolic, neuromuscular, cardiovascular, and respiratory systems. Depending on the animal selected, the energetic demands and flux through the oxygen transport system can increase two orders of magnitude from rest to maximal exercise. Thus, animal models in health and disease present the scientist with flexible, powerful, and, in some instances, purpose-built tools to explore the mechanistic bases for physiological function and help unveil the causes for pathological or age-related exercise intolerance. Elegant experimental designs and analyses of kinetic parameters and steady-state responses permit acute and chronic exercise paradigms to identify therapeutic targets for drug development in disease and also present the opportunity to test the efficacy of pharmacological and behavioral countermeasures during aging, for example. However, for this promise to be fully realized, the correct or optimal animal model must be selected in conjunction with reproducible tests of physiological function (e.g., exercise capacity and maximal oxygen uptake) that can be compared equitably across laboratories, clinics, and other proving grounds. Rigorously controlled animal exercise and training studies constitute the foundation of translational research. This review presents the most commonly selected animal models with guidelines for their use and obtaining reproducible results and, crucially, translates state-of-the-art techniques and procedures developed on humans to those animal models.
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Affiliation(s)
- David C Poole
- Department of Kinesiology, Kansas State University, Manhattan, Kansas.,Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas
| | - Steven W Copp
- Department of Kinesiology, Kansas State University, Manhattan, Kansas
| | - Trenton D Colburn
- Department of Kinesiology, Kansas State University, Manhattan, Kansas
| | - Jesse C Craig
- Department of Internal Medicine, University of Utah, Salt Lake City, Utah.,Geriatric Research, Education, and Clinical Center, Veterans Affairs Medical Center, Salt Lake City, Utah
| | - David L Allen
- Department of Psychology and Neuroscience, University of Colorado, Boulder, Colorado
| | - Michael Sturek
- Department of Anatomy, Cell Biology and Physiology, Indiana University, Indianapolis, Indiana
| | - Donal S O'Leary
- Department of Physiology, Wayne State University School of Medicine, Detroit, Michigan
| | - Irving H Zucker
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Timothy I Musch
- Department of Kinesiology, Kansas State University, Manhattan, Kansas.,Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas
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18
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Olejniczak M, Schwartz M, Webber E, Shaffer A, Perry TE. Viral Myocarditis-Incidence, Diagnosis and Management. J Cardiothorac Vasc Anesth 2020; 34:1591-1601. [PMID: 32127272 DOI: 10.1053/j.jvca.2019.12.052] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 12/22/2019] [Accepted: 12/29/2019] [Indexed: 12/25/2022]
Abstract
Viral myocarditis has an incidence rate of 10 to 22 per 100,000 individuals. The presentation pattern of viral myocarditis can range from nonspecific symptoms of fatigue and shortness of breath to more aggressive symptoms that mimic acute coronary syndrome. After the initial acute phase presentation of viral myocarditis, the virus may be cleared, resulting in full clinical recovery; the viral infection may persist; or the viral infection may lead to a persistent autoimmune-mediated inflammatory process with continuing symptoms of heart failure. As a result of these 3 possibilities, the diagnosis, prognosis, and treatment of viral myocarditis can be extremely unpredictable and challenging for the clinician. Herein, the incidence, etiology, definition and classification, clinical manifestation, diagnosis, pathogenesis, prognosis, and treatment of viral myocarditis are reviewed, and how acute clinical care teams might differentiate between viral myocarditis and other acute cardiac conditions is discussed.
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Affiliation(s)
- Megan Olejniczak
- University of Minnesota, Department of Anesthesia, Minneapolis, MN
| | - Matthew Schwartz
- University of Minnesota, Department of Anesthesia, Minneapolis, MN
| | - Elizabeth Webber
- University of Minnesota, Department of Anesthesia, Minneapolis, MN
| | - Andrew Shaffer
- University of Minnesota, Department of Cardiothoracic Surgery, Minneapolis, MN
| | - Tjorvi E Perry
- University of Minnesota, Department of Anesthesia, Minneapolis, MN.
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19
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The effectiveness of cardiac rehabilitation in non-ischemic dilated cardiomyopathy patients: A pilot study. J Formos Med Assoc 2019; 119:627-634. [PMID: 31481287 DOI: 10.1016/j.jfma.2019.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 08/06/2019] [Accepted: 08/20/2019] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND/PURPOSE We aimed to investigate the efficacy of cardiac rehabilitation (CR) through parameters of cardiopulmonary exercise testing (CPET) and echocardiography in non-ischemic dilated cardiomyopathy (DCM) patients. METHODS We retrospectively identified non-ischemic DCM patients through medical records (between October 2011 and October 2018) in rehabilitation outpatient-clinics. Patients were divided into rehabilitation and control groups. Patients in the rehabilitation group eligible for inclusion had CR for 3-6 months. Control group patients were without rehabilitation. We recorded CPET and echocardiography parameters at the baseline and follow-up time-points. For safety evaluation, we investigated all adverse effects during training sessions. We utilized Mann-Whitney U test for between- and Wilcoxon signed-rank test for within-group comparisons. RESULTS Twenty-five patients (14 in rehabilitation and 11 in control group) were included. In the rehabilitation group, significantly increased peak V˙O2/kg, peak V˙O2%, peak workload and peak O2 pulse were observed after completing CR, and echocardiographic parameters including left ventricular ejection fraction and end-systolic volume. Rehabilitation group patients demonstrated better improvement (change from the baseline) in peak V˙O2/kg, peak V˙O2% and peak workload vs. control. No adverse effects during rehabilitation trainings were observed. CONCLUSION For non-ischemic DCM, rehabilitation led to superior cardiopulmonary outcomes vs. no rehabilitation, without adverse effects.
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20
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Affiliation(s)
- Marthin Karoff
- Helios Klinikum Schwelm, Universität Witten/Herdecke, Dr.-Moeller-Straße 15, D-58332, Schwelm, Deutschland.
| | - Jan Karoff
- Institut für Bildungsforschung (IfB), Bergische Universität Wuppertal, Wuppertal, Deutschland
| | - Birna Bjarnason-Wehrens
- Institut für Kreislaufforschung und Sportmedizin, Deutsche Sporthochschule Köln, Köln, Deutschland
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21
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Laoutaris ID. Restoring pulsatility and peakVO 2 in the era of continuous flow, fixed pump speed, left ventricular assist devices: 'A hypothesis of pump's or patient's speed?'. Eur J Prev Cardiol 2019; 26:1806-1815. [PMID: 31180758 DOI: 10.1177/2047487319856448] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Despite significant improvement in survival and functional capacity after continuous flow left ventricular assist device implantation, the patient's quality of life may remain limited by complications such as aortic valve insufficiency, thromboembolic episodes and gastrointestinal bleeding attributed to high shear stress continuous flow with attenuated or absence of pulsatile flow and by a reduced peak oxygen consumption (peakVO2) primarily associated with a fixed pump speed operation. Revision of current evidence suggests that high technology pump speed algorithms, a 'hypothesis of decreasing pump's speed' to promote pulsatile flow and a 'hypothesis of increasing pump's speed' to increase peakVO2, may only partially reverse these barriers. A 'hypothesis of increasing patient's speed' is introduced, suggesting that exercise training may further contribute to the patient's recovery, enhancing peakVO2 and pulsatile flow by improving skeletal muscle oxidative capacity and strength, peripheral vasodilatory and ventilatory responses, favour changes in preload/afterload and facilitate native flow, formulating the rationale for further studies in the field.
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22
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Grafton G, Cascino TM, Perry D, Ashur C, Koelling TM. Resting Oxygen Consumption and Heart Failure: Importance of Measurement for Determination of Cardiac Output With the Use of the Fick Principle. J Card Fail 2019; 26:664-672. [PMID: 30753933 DOI: 10.1016/j.cardfail.2019.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 02/01/2019] [Accepted: 02/03/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND Resting oxygen consumption (VO2) is often estimated and frequently used to guide therapeutic decisions in symptomatic heart failure (HF) patients. The relationship between resting VO2 and symptomatic HF and the accuracy of estimations of VO2 in this population are unknown. METHODS AND RESULTS We performed a cross-sectional study of HF patients (n = 691) and healthy control subjects (n = 77). VO2 was measured with the use of a metabolic cart, and estimated VO2 was calculated with the use of the Dehmer, LaFarge, and Bergstra formulas and the thermodilution method. The measured and estimated VO2 were compared and the potential impact of estimations determined. In the multivariable model, resting VO2 decreased with increasing New York Heart Association (NYHA) functional class in a stepwise fashion (β NYHA functional class IV vs control = -36 mL O2/min; P < .001). Estimations of VO2 with the use of derived equations diverged from measured values, particularly for patients with NYHA functional class IV limitations. The percentage difference of measured VO2 versus estimated VO2 was >25% in 39% (n = 271), 25% (n = 170), 82% (n = 566), and 39% (n = 271) of HF patients when using the Dehmer, LaFarge, Bergstra, and thermodilution-derived estimations of VO2 respectively. CONCLUSIONS Resting VO2 decreases with increasing NYHA functional class and is lower than in control subjects. Using estimations of VO2 to calculate CO may introduce clinically important error.
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Affiliation(s)
- Gillian Grafton
- Division of Cardiovascular Medicine, Henry Ford, Detroit, Michigan
| | - Thomas M Cascino
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, Michigan.
| | - Daniel Perry
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, Michigan
| | - Carmel Ashur
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, Michigan
| | - Todd M Koelling
- Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, Michigan
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23
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Li Z, Organ CL, Kang J, Polhemus DJ, Trivedi RK, Sharp TE, Jenkins JS, Tao YX, Xian M, Lefer DJ. Hydrogen Sulfide Attenuates Renin Angiotensin and Aldosterone Pathological Signaling to Preserve Kidney Function and Improve Exercise Tolerance in Heart Failure. ACTA ACUST UNITED AC 2018; 3:796-809. [PMID: 30623139 PMCID: PMC6315048 DOI: 10.1016/j.jacbts.2018.08.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/29/2018] [Accepted: 08/30/2018] [Indexed: 12/22/2022]
Abstract
Cardioprotective effects of H2S have been well documented. However, the lack of evidence supporting the benefits afforded by delayed H2S therapy warrants further investigation. Using a murine model of transverse aortic constriction-induced heart failure, this study showed that delayed H2S therapy protects multiple organs including the heart, kidney, and blood-vessel; reduces oxidative stress; attenuates renal sympathetic and renin-angiotensin-aldosterone system pathological activation; and ultimately improves exercise capacity. These findings provide further insights into H2S-mediated cardiovascular protection and implicate the benefits of using H2S-based therapies clinically for the treatment of heart failure.
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Affiliation(s)
- Zhen Li
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Chelsea L. Organ
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Jianming Kang
- Department of Chemistry, Washington State University, Pullman, Washington
| | - David J. Polhemus
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Rishi K. Trivedi
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Thomas E. Sharp
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Jack S. Jenkins
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Ya-xiong Tao
- Department of Anatomy, Physiology, and Pharmacology, Auburn University College of Veterinary Medicine, Auburn, Alabama
| | - Ming Xian
- Department of Chemistry, Washington State University, Pullman, Washington
| | - David J. Lefer
- Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, Louisiana
- Address for correspondence: Dr. David J. Lefer, Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, 533 Bolivar Street, Room 408, New Orleans, Louisiana 70112.
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24
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Adamopoulos S, Corrà U, Laoutaris ID, Pistono M, Agostoni PG, Coats AJ, Crespo Leiro MG, Cornelis J, Davos CH, Filippatos G, Lund LH, Jaarsma T, Ruschitzka F, Seferovic PM, Schmid JP, Volterrani M, Piepoli MF. Exercise training in patients with ventricular assist devices: a review of the evidence and practical advice. A position paper from the Committee on Exercise Physiology and Training and the Committee of Advanced Heart Failure of the Heart Failure Associat. Eur J Heart Fail 2018; 21:3-13. [DOI: 10.1002/ejhf.1352] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 08/06/2018] [Accepted: 08/26/2018] [Indexed: 12/15/2022] Open
Affiliation(s)
- Stamatis Adamopoulos
- Heart Failure and Heart Transplantation Unit; Onassis Cardiac Surgery Center; Athens Greece
| | - Ugo Corrà
- Cardiology Department; Istituti Clinici Scientifici Maugeri, Centro Medico di Riabilitazione di Veruno; Novara Italy
| | - Ioannis D. Laoutaris
- Heart Failure and Heart Transplantation Unit; Onassis Cardiac Surgery Center; Athens Greece
| | - Massimo Pistono
- Cardiology Department; Istituti Clinici Scientifici Maugeri, Centro Medico di Riabilitazione di Veruno; Novara Italy
| | - Pier Giuseppe Agostoni
- Centro Cardiologico Monzino, IRCCS, Milan, Italy; Department of Clinical Sciences and Community Health; Cardiovascular Section, University of Milan; Milan Italy
| | | | - Maria G. Crespo Leiro
- Heart Failure and Transplant Unit; Complexo Hospitalario Universitario A Coruña (CHUAC), INIBIC, CIBERCV, UDC; La Coruña Spain
| | - Justien Cornelis
- Faculty of Medicine and Health Sciences, Translational Pathophysiological Research; University of Antwerp; Antwerp Belgium
| | - Constantinos H. Davos
- Cardiovascular Research Laboratory; Biomedical Research Foundation, Academy of Athens; Athens Greece
| | | | - Lars H. Lund
- Department of Medicine; Karolinska Institutet and Heart and Vascular Theme, Karolinska University Hospital; Stockholm Sweden
| | - Tiny Jaarsma
- Department of Nursing; University of Linköping; Linköping Sweden
| | - Frank Ruschitzka
- Department of Cardiology; University Heart Center; Zürich Switzerland
| | | | - Jean-Paul Schmid
- Chefarzt Kardiologie, Klinik Barmelweid AG; Barmelweid Switzerland
| | | | - Massimo F. Piepoli
- Heart Failure Unit, Cardiac Department; Guglielmo da Saliceto Hospital; Piacenza Italy
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25
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Patel HC, Kaye DM. Exercise training in heart failure: a long way to go yet. Eur J Heart Fail 2018; 20:1744-1745. [DOI: 10.1002/ejhf.1332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 09/11/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
| | - David M. Kaye
- Baker Heart and Diabetes Institute Melbourne Australia
- Alfred Hospital Melbourne Australia
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26
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Esposito F, Mathieu-Costello O, Wagner PD, Richardson RS. Acute and chronic exercise in patients with heart failure with reduced ejection fraction: evidence of structural and functional plasticity and intact angiogenic signalling in skeletal muscle. J Physiol 2018; 596:5149-5161. [PMID: 30192995 DOI: 10.1113/jp276678] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/04/2018] [Indexed: 01/08/2023] Open
Abstract
KEY POINTS The vascular endothelial growth factor (VEGF) responses to acute submaximal exercise and training effects in patients with heart failure with reduced ejection fraction (HFrEF) were investigated. Six patients and six healthy matched controls performed knee-extensor exercise (KE) at 50% of maximum work rate before and after (only patients) KE training. Muscle biopsies were taken to assess skeletal muscle structure and the angiogenic response. Before training, during this submaximal KE exercise, patients with HFrEF exhibited higher leg vascular resistance and greater noradrenaline spillover. Skeletal muscle structure and VEGF response were generally not different between groups. Following training, resistance was no longer elevated and noradrenaline spillover was curtailed in the patients. Although, in the trained state, VEGF did not respond to acute exercise, capillarity was augmented. Muscle fibre cross-sectional area and percentage area of type I fibres increased and mitochondrial volume density exceeded that of controls. Structural/functional plasticity and appropriate angiogenic signalling were observed in skeletal muscle of patients with HFrEF. ABSTRACT This study examined the response to acute submaximal exercise and the effect of training in patients with heart failure with reduced ejection fraction (HFrEF). The acute angiogenic response to submaximal exercise in HFrEF after small muscle mass training is debated. The direct Fick method, with vascular pressures, was performed across the leg during knee-extensor exercise (KE) at 50% of maximum work rate (WRmax ) in patients (n = 6) and controls (n = 6) and then after KE training in patients. Muscle biopsies facilitated the assessment of skeletal muscle structure and vascular endothelial growth factor (VEGF) mRNA levels. Prior to training, HFrEF exhibited significantly higher leg vascular resistance (LVR) (≈15%) and significantly greater noradrenaline spillover (≈385%). Apart from mitochondrial volume density, which was significantly lower (≈22%) in HFrEF, initial skeletal muscle structure, including capillarity, was not different between groups. Resting VEGF mRNA levels, and the increase with exercise, was not different between patients and controls. Following training, LVR was no longer elevated and noradrenaline spillover was curtailed. Skeletal muscle capillarity increased with training, as assessed by capillary-to-fibre ratio (≈13%) and number of capillaries around a fibre (NCAF ) (≈19%). VEGF mRNA was now not significantly increased by acute exercise. Muscle fibre cross-sectional area and percentage area of type I fibres both increased significantly with training (≈18% and ≈21%, respectively), while the percentage area of type II fibres fell significantly (≈11%), and mitochondrial volume density now exceeded that of controls. These data reveal structural and functional plasticity and appropriate angiogenic signalling in skeletal muscle of HFrEF patients.
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Affiliation(s)
- Fabio Esposito
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Odile Mathieu-Costello
- Department of Medicine, Division of Physiology, University of California, San Diego, CA, USA
| | - Peter D Wagner
- Department of Medicine, Division of Physiology, University of California, San Diego, CA, USA
| | - Russell S Richardson
- Department of Medicine, Division of Geriatrics, University of Utah, Salt Lake City, UT, USA.,Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT, USA.,Geriatric Research, Education and Clinical Center, VAMC, Salt Lake City, UT, USA
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27
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Tikunova S, Belevych N, Doan K, Reiser PJ. Desensitizing mouse cardiac troponin C to calcium converts slow muscle towards a fast muscle phenotype. J Physiol 2018; 596:4651-4663. [PMID: 29992562 PMCID: PMC6166084 DOI: 10.1113/jp276296] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/27/2018] [Indexed: 12/11/2022] Open
Abstract
KEY POINTS The Ca2+ -desensitizing D73N mutation in slow skeletal/cardiac troponin C caused dilatated cardiomyopathy in mice, but the consequences of this mutation in skeletal muscle were not known. The D73N mutation led to a rightward shift in the force versus pCa (-log [Ca]) relationship in slow-twitch mouse fibres. The D73N mutation led to a rightward shift in the force-stimulation frequency relationship and reduced fatigue resistance of mouse soleus muscle. The D73N mutation led to reduced cross-sectional area of slow-twitch fibres in mouse soleus muscle without affecting fibre type composition of the muscle. The D73N mutation resulted in significantly shorter times to peak force and to relaxation during isometric twitches and tetani in mouse soleus muscle. The D73N mutation led to major changes in physiological properties of mouse soleus muscle, converting slow muscle toward a fast muscle phenotype. ABSTRACT The missense mutation, D73N, in mouse cardiac troponin C has a profound impact on cardiac function, mediated by a decreased myofilament Ca2+ sensitivity. Mammalian cardiac muscle and slow skeletal muscle normally share expression of the same troponin C isoform. Therefore, the objective of this study was to determine the consequences of the D73N mutation in skeletal muscle, as a potential mechanism that contributes to the morbidity associated with heart failure or other conditions in which Ca2+ sensitivity might be altered. Effects of the D73N mutation on physiological properties of mouse soleus muscle, in which slow-twitch fibres are prevalent, were examined. The mutation resulted in a rightward shift of the force-stimulation frequency relationship, and significantly faster kinetics of isometric twitches and tetani in isolated soleus muscle. Furthermore, soleus muscles from D73N mice underwent a significantly greater reduction in force during a fatigue test. The mutation significantly reduced slow fibre mean cross-sectional area without affecting soleus fibre type composition. The effects of the mutation on Ca2+ sensitivity of force development in soleus skinned slow and fast fibres were also examined. As expected, the D73N mutation did not affect the Ca2+ sensitivity of force development in fast fibres but resulted in substantially decreased Ca2+ sensitivity in slow fibres. The results demonstrate that a point mutation in a single constituent of myofilaments (slow/cardiac troponin C) led to major changes in physiological properties of skeletal muscle and converted slow muscle toward a fast muscle phenotype with reduced fatigue resistance and Ca2+ sensitivity of force generation.
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Affiliation(s)
- Svetlana Tikunova
- Department of Physiology and Cell BiologyCollege of MedicineColumbusOH 43210USA
| | - Natalya Belevych
- Division of Biosciences, College of DentistryOhio State UniversityColumbusOH 43210USA
| | - Kelly Doan
- Division of Biosciences, College of DentistryOhio State UniversityColumbusOH 43210USA
| | - Peter J. Reiser
- Division of Biosciences, College of DentistryOhio State UniversityColumbusOH 43210USA
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28
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Marino P, de Oliveira Lopes G, Pereira Borges J, Carolina Terra Cola M, Arkader Kopiler D, Tibirica E. Evaluation of systemic microvascular reactivity in adults with congenital heart disease. CONGENIT HEART DIS 2018; 13:978-987. [DOI: 10.1111/chd.12660] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/15/2018] [Accepted: 07/15/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Pablo Marino
- National Institute of Cardiology; Rio de Janeiro Brazil
- Antônio Pedro University Hospital, Federal Fluminense University; Niteroi Brazil
| | - Gabriella de Oliveira Lopes
- National Institute of Cardiology; Rio de Janeiro Brazil
- Laboratory of Physical Activity and Health Promotion, Department of Collective Sports, Institute of Physical Education and Sports; Rio de Janeiro State University; Rio de Janeiro Brazil
| | - Juliana Pereira Borges
- Laboratory of Physical Activity and Health Promotion, Department of Collective Sports, Institute of Physical Education and Sports; Rio de Janeiro State University; Rio de Janeiro Brazil
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Bjarnason-Wehrens B, Predel HG. Inspiratory muscle training – an inspiration for more effective cardiac rehabilitation in heart failure patients? Eur J Prev Cardiol 2018; 25:1687-1690. [DOI: 10.1177/2047487318798917] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Birna Bjarnason-Wehrens
- Institute for Cardiology and Sports Medicine, Department of Preventive and Rehabilitative Sport Medicine and Exercise Physiology, German Sport University Cologne, Germany
| | - Hans-Georg Predel
- Institute for Cardiology and Sports Medicine, Department of Preventive and Rehabilitative Sport Medicine and Exercise Physiology, German Sport University Cologne, Germany
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30
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Laoutaris ID. The ‘aerobic/resistance/inspiratory muscle training hypothesis in heart failure’. Eur J Prev Cardiol 2018; 25:1257-1262. [DOI: 10.1177/2047487318776097] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Evidence from large multicentre exercise intervention trials in heart failure patients, investigating both moderate continuous aerobic training and high intensity interval training, indicates that the ‘crème de la crème’ exercise programme for this population remains to be found. The ‘aerobic/resistance/inspiratory (ARIS) muscle training hypothesis in heart failure’ is introduced, suggesting that combined ARIS muscle training may result in maximal exercise pathophysiological and functional benefits in heart failure patients. The hypothesis is based on the decoding of the ‘skeletal muscle hypothesis in heart failure’ and on revision of experimental evidence to date showing that exercise and functional intolerance in heart failure patients are associated not only with reduced muscle endurance, indication for aerobic training (AT), but also with reduced muscle strength and decreased inspiratory muscle function contributing to weakness, dyspnoea, fatigue and low aerobic capacity, forming the grounds for the addition of both resistance training (RT) and inspiratory muscle training (IMT) to AT. The hypothesis will be tested by comparing all potential exercise combinations, ARIS, AT/RT, AT/IMT, AT, evaluating both functional and cardiac indices in a large sample of heart failure patients of New York Heart Association class II–III and left ventricular ejection fraction ≤35% ad hoc by the multicentre randomized clinical trial, Aerobic Resistance, InSpiratory Training OutcomeS in Heart Failure (ARISTOS-HF trial).
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Exercise intolerance in heart failure with preserved ejection fraction: A reappraisal of central mechanisms? Int J Cardiol 2018; 254:248-249. [DOI: 10.1016/j.ijcard.2017.11.114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 11/30/2017] [Indexed: 01/08/2023]
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Morosin M, Farina S, Vignati C, Spadafora E, Sciomer S, Salvioni E, Sinagra G, Agostoni P. Exercise performance, haemodynamics, and respiratory pattern do not identify heart failure patients who end exercise with dyspnoea from those with fatigue. ESC Heart Fail 2017; 5:115-119. [PMID: 29171164 PMCID: PMC5793969 DOI: 10.1002/ehf2.12207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 04/28/2017] [Accepted: 07/26/2017] [Indexed: 11/10/2022] Open
Abstract
AIMS The two main symptoms referred by chronic heart failure (HF) patients as the causes of exercise termination during maximal cardiopulmonary exercise testing (CPET) are muscular fatigue and dyspnoea. So far, a physiological explanation why some HF patients end exercise because of dyspnoea and others because of fatigue is not available. We assessed whether patients referring dyspnoea or muscular fatigue may be distinguished by different ventilator or haemodynamic behaviours during exercise. METHODS AND RESULTS We analysed exercise data of 170 consecutive HF patients with reduced left ventricular ejection fraction in stable clinical condition. All patients underwent maximal CPET and a second maximal CPET with measurement of cardiac output by inert gas rebreathing at peak exercise. Thirty-eight (age 65.0 ± 11.1 years) and 132 (65.1 ± 11.4 years) patients terminated CPET because of dyspnoea and fatigue, respectively. Haemodynamic and cardiorespiratory parameters were the same in fatigue and dyspnoea patients. VO2 was 10.4 ± 3.2 and 10.5 ± 3.3 mL/min/kg at the anaerobic threshold and 15.5 ± 4.8 and 15.4 ± 4.3 at peak, in fatigue and dyspnoea patients, respectively. In fatigue and dyspnoea patients, peak heart rate was 110 ± 22 and 114 ± 22 beats/min, and VE/VCO2 and VO2 /work relationship slopes were 31.2 ± 6.8 and 30.6 ± 8.2 and 10.6 ± 4.2 and 11.4 ± 5.5 L/min/W, respectively. Peak cardiac output was 6.68 ± 2.51 and 6.21 ± 2.55 L/min (P = NS for all). CONCLUSIONS In chronic HF patients in stable clinical condition, fatigue and dyspnoea as reasons of exercise termination do not highlight different ventilatory or haemodynamic patterns during effort.
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Affiliation(s)
- Marco Morosin
- Centro Cardiologico Monzino, IRCCS, Milan, Italy.,Cardiovascular Department 'Ospedali Riuniti' Trieste and Postgraduate School Cardiovascular Sciences, University of Trieste, Trieste, Italy
| | | | | | | | - Susanna Sciomer
- Department of Cardiovascular, Respiratory, Geriatric, Nephrology and Anesthesiology Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Gianfranco Sinagra
- Cardiovascular Department 'Ospedali Riuniti' Trieste and Postgraduate School Cardiovascular Sciences, University of Trieste, Trieste, Italy
| | - Piergiuseppe Agostoni
- Centro Cardiologico Monzino, IRCCS, Milan, Italy.,Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, Milan, Italy
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Hentschke VS, Capalonga L, Rossato DD, Perini JL, Alves JP, Quagliotto E, Stefani GP, Karsten M, Pontes M, Dal Lago P. Functional capacity in a rat model of heart failure: impact of myocardial infarct size. Exp Physiol 2017; 102:1448-1458. [DOI: 10.1113/ep086076] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 08/21/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Vítor Scotta Hentschke
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
- Programa de Pós-Graduação em Ciências da Saúde; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
| | - Lucas Capalonga
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
| | - Douglas Dalcin Rossato
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
- Centro Universitário Franciscano (UNIFRA); Santa Maria Rio Grande do Sul Brazil
| | - Júlia Luíza Perini
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
| | - Jadson Pereira Alves
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
- Programa de Pós-Graduação em Ciências da Saúde; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
| | - Edson Quagliotto
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
| | - Giuseppe Potrick Stefani
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
- Programa de Pós-Graduação em Ciências da Saúde; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
| | - Marlus Karsten
- Departamento de Fisioterapia; Universidade do Estado de Santa Catarina (UDESC); Florianópolis Santa Catarina Brazil
| | - Mauro Pontes
- Departamento de Farmacociências; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
| | - Pedro Dal Lago
- Laboratório de Fisiologia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
- Departamento de Fisioterapia; Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre Rio Grande do Sul Brazil
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Kawauchi TS, Umeda IIK, Braga LM, Mansur ADP, Rossi-Neto JM, Guerra de Moraes Rego Sousa A, Hirata MH, Cahalin LP, Nakagawa NK. Is there any benefit using low-intensity inspiratory and peripheral muscle training in heart failure? A randomized clinical trial. Clin Res Cardiol 2017; 106:676-685. [PMID: 28255812 DOI: 10.1007/s00392-017-1089-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 02/08/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Inspiratory and peripheral muscle training improves muscle strength, exercise tolerance, and quality of life in patients with chronic heart failure (HF). However, studies investigating different workloads for these exercise modalities are still lacking. OBJECTIVE To examine the effects of low and moderate intensities on muscle strength, functional capacity, and quality of life. DESIGN A randomized controlled trial. METHODS Thirty-five patients with stable HF (aged >18 years, NYHA II/III, LVEF <40%) were randomized to: non-exercise control group (n = 9), low-intensity training group (LIPRT, n = 13, 15% maximal inspiratory workload, and 0.5 kg of peripheral muscle workload) or moderate-intensity training group (MIPRT, n = 13, 30% maximal inspiratory workload and 50% of one maximum repetition of peripheral muscle workload). The outcomes were: respiratory and peripheral muscle strength, pulmonary function, exercise tolerance by the 6-minute walk test, symptoms based on the NYHA functional class, and quality of life using the Minnesota Living with Heart Failure Questionnaire. RESULTS All groups showed similar quality-of-life improvements. Low and moderate intensities training programs improved inspiratory muscle strength, peripheral muscle strength, and walking distance. However, only moderate intensity improved expiratory muscle strength and NYHA functional class in HF patients. CONCLUSIONS The low-intensity inspiratory and peripheral resistance muscle training improved inspiratory and peripheral muscle strength and walking distance, demonstrating that LIPRT is an efficient rehabilitation method for debilitated HF patients. In addition, the moderate-intensity resistance training also improved expiratory muscle strength and NYHA functional class in HF patients.
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Affiliation(s)
- Tatiana Satie Kawauchi
- Department of Physiotherapy, LIM-34, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 Room 1150, São Paulo, SP, 01246-930, Brazil
| | - Iracema Ioco Kikuchi Umeda
- Dante Pazzanese Institute of Cardiology São Paulo State, Av. Dr. Dante Pazzanese, 500, São Paulo, SP, Brazil
| | - Lays Magalhães Braga
- Department of Physiotherapy, LIM-34, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 Room 1150, São Paulo, SP, 01246-930, Brazil
| | - Antonio de Pádua Mansur
- Heart Institute - HCFMUSP, Faculdade de Medicina da Universidade de Sao Paulo, Av. Dr. Eneas de Carvalho Aguiar, 44, São Paulo, SP, Brazil
| | - João Manoel Rossi-Neto
- Dante Pazzanese Institute of Cardiology São Paulo State, Av. Dr. Dante Pazzanese, 500, São Paulo, SP, Brazil
| | | | - Mário Hiroyuki Hirata
- Dante Pazzanese Institute of Cardiology São Paulo State, Av. Dr. Dante Pazzanese, 500, São Paulo, SP, Brazil
| | - Lawrence P Cahalin
- Department of Physical Therapy, University of Miami, Coral Gables, FL, USA
| | - Naomi Kondo Nakagawa
- Department of Physiotherapy, LIM-34, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Arnaldo, 455 Room 1150, São Paulo, SP, 01246-930, Brazil.
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Vascular K ATP channels mitigate severe muscle O 2 delivery-utilization mismatch during contractions in chronic heart failure rats. Respir Physiol Neurobiol 2017; 238:33-40. [PMID: 28119150 DOI: 10.1016/j.resp.2017.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/10/2017] [Accepted: 01/18/2017] [Indexed: 12/14/2022]
Abstract
The vascular ATP-sensitive K+ (KATP) channel is a mediator of skeletal muscle microvascular oxygenation (PO2mv) during contractions in health. We tested the hypothesis that KATP channel function is preserved in chronic heart failure (CHF) and therefore its inhibition would reduce PO2mv and exacerbate the time taken to reach the PO2mv steady-state during contractions of the spinotrapezius muscle. Moreover, we hypothesized that subsequent KATP channel activation would oppose the effects of this inhibition. Muscle PO2mv (phosphorescence quenching) was measured during 180s of 1-Hz twitch contractions (∼6V) under control, glibenclamide (GLI, KATP channel antagonist; 5mg/kg) and pinacidil (PIN, KATP channel agonist; 5mg/kg) conditions in 16 male Sprague-Dawley rats with CHF induced via myocardial infarction (coronary artery ligation, left ventricular end-diastolic pressure: 18±1mmHg). GLI reduced baseline PO2mv (control: 28.3±0.9, GLI: 24.8±1.0mmHg, p<0.05), lowered mean PO2mv (average PO2mv during the overall time taken to reach the steady-state; control: 20.6±0.6, GLI: 17.6±0.3mmHg, p<0.05), and slowed the attainment of steady-state PO2mv (overall mean response time; control: 66.1±10.2, GLI: 93.6±7.8s, p<0.05). PIN opposed these effects on the baseline PO2mv, mean PO2mv and time to reach the steady-state PO2mv (p<0.05 for all vs. GLI). Inhibition of KATP channels exacerbates the transient mismatch between muscle O2 delivery and utilization in CHF rats and this effect is opposed by PIN. These data reveal that the KATP channel constitutes one of the select few well-preserved mechanisms of skeletal muscle microvascular oxygenation control in CHF.
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Konishi M, Ebner N, Springer J, Schefold JC, Doehner W, Dschietzig TB, Anker SD, von Haehling S. Impact of Plasma Kynurenine Level on Functional Capacity and Outcome in Heart Failure ― Results From Studies Investigating Co-morbidities Aggravating Heart Failure (SICA-HF) ―. Circ J 2017; 81:52-61. [DOI: 10.1253/circj.cj-16-0791] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masaaki Konishi
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University of Göttingen Medical School
| | - Nicole Ebner
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University of Göttingen Medical School
| | - Jochen Springer
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University of Göttingen Medical School
| | - Joerg C. Schefold
- Department of Intensive Care Medicine, Inselspital, University Hospital of Bern
| | - Wolfram Doehner
- Campus Virchow, Center for Stroke Research Berlin and Department of Cardiology, Charité Medical School
| | | | - Stefan D. Anker
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University of Göttingen Medical School
| | - Stephan von Haehling
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University of Göttingen Medical School
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Karagiannis C, Savva C, Mamais I, Efstathiou M, Monticone M, Xanthos T. Eccentric exercise in ischemic cardiac patients and functional capacity: A systematic review and meta-analysis of randomized controlled trials. Ann Phys Rehabil Med 2016; 60:58-64. [PMID: 27988306 DOI: 10.1016/j.rehab.2016.10.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/30/2016] [Accepted: 10/31/2016] [Indexed: 01/24/2023]
Abstract
BACKGROUND Eccentric (ECC) exercise is an "economical" type of exercise with low energy requirements and does not cause early fatigue. Therefore, it is used for cardiac patients, who have low physical activity and exercise intolerance, as an easier kind of training. OBJECTIVE This systematic review aimed to investigate the efficacy of ECC exercise for functional capacity (FC) in patients with ischemic heart disease. DESIGN Systematic review. METHODS MEDLINE via PubMed and EBSCO databases were searched for articles of randomized controlled trials of adults with ischemic heart disease who underwent ECC training as compared with other forms of exercise (concentric exercise) or no exercise and assessed FC. The methodologic quality of studies was assessed by the PEDro scale. A meta-analysis was performed with sufficient homogeneity between at least 2 studies in the pre-defined comparisons. RESULTS Four studies, investigating a total of 99 subjects, met the inclusion criteria. The results of the studies did not clearly indicate whether ECC exercise could improve FC better than traditional forms of exercise. However, the small number of studies and their methodologic weaknesses do not allow for drawing firm conclusions. CONCLUSIONS We found contradictory results about the effectiveness of ECC as compared with concentric exercise in terms of FC in ischemic cardiac patients. Further investigation with well-designed randomized trials is needed to determine the effectiveness of this kind of exercise for FC in such patients.
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Affiliation(s)
- C Karagiannis
- European University of Cyprus, School of Sciences, Department of Health Sciences, Nicosia, Cyprus.
| | - C Savva
- European University of Cyprus, School of Sciences, Department of Health Sciences, Nicosia, Cyprus
| | - I Mamais
- European University of Cyprus, School of Sciences, Department of Health Sciences, Nicosia, Cyprus
| | - M Efstathiou
- University of Nicosia, Department of Life and Health Sciences, Nicosia, Cyprus
| | - M Monticone
- University of Cagliari, Department of Public Health, Clinical and Molecular Medicine, Cagliari, Italy
| | - T Xanthos
- European University of Cyprus, School of Medicine, Nicosia, Cyprus
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Maximal oxygen uptake and exercise tolerance are improved in rats with heart failure subjected to low-level laser therapy associated with resistance training. Lasers Med Sci 2016; 32:73-85. [PMID: 27858257 DOI: 10.1007/s10103-016-2088-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 09/27/2016] [Indexed: 12/19/2022]
Abstract
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. After MI or sham surgery, rats underwent a RT and LLLT protocol (applied immediately after RT) for 8 weeks. VO2max and exercise tolerance were evaluated at the end of protocol. HF rats subjected to LLLT combined with RT showed higher VO2basal (41 %), VO2max (40 %), VO2reserve (39 %), run distance (46 %), time to exhaustion (30 %) and maximal velocity (22 %) compared with HF rats that underwent RT alone. LLLT associated with RT improved oxygen uptake and exercise tolerance compared with RT alone in HF rats.
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Oosterom-Calo R, te Velde SJ, Stut W, Drory Y, Brug J, Gerber Y. Do heart failure status and psychosocial variables moderate the relationship between leisure time physical activity and mortality risk among patients with a history of myocardial infarction? BMC Cardiovasc Disord 2016; 16:196. [PMID: 27733111 PMCID: PMC5059913 DOI: 10.1186/s12872-016-0363-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 09/27/2016] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Leisure time physical activity (LTPA) is inversely related to mortality risk among patients with a history of myocardial infarction (MI). The aims were to explore if heart failure (HF) status and psychosocial variables moderate the association. METHODS Participants (n = 1169) were from a multi-center prospective cohort study. Information on LTPA (none, irregular,1-150, 151-300 and >300 weekly minutes), depression, social support and other prognostic indicators were collected 10-13 years after index MI. Cox regressions were conducted, adjusting for potential confounders. In case of significant moderation by HF-status or psychosocial variables, stratified analyses were performed. RESULTS During follow-up (M = 8.4 years), 25.6 % of the sample had died. LTPA was inversely associated with mortality (p for trend < 0.01 in all models). HF did not, but psychosocial variables did, moderate the association. In the LTPA category 1-150 weekly minutes, patients with a high level of depression had a lower mortality risk in comparison to those with a low level (hazard ratios (95 % confidence intervals) were 0.43 (0.25, 0.75) versus 0.69 (0.36, 1.32)), and patients with a low level of social support had a lower mortality risk in comparison to those with a high level (0.40 (0.21, 0.77) versus 0.71 (0.39, 1.27)). In the category >300 min, patients with a high level of social support had a lower mortality risk than those with a low level (0.38 (0.19, 0.79) versus 0.51 (0.30, 0.87)). CONCLUSIONS LTPA was inversely related to mortality risk of post-MI patients. HF did not moderate the relationship; depression and social support partially did.
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Affiliation(s)
- Rony Oosterom-Calo
- Philips Research, Eindhoven, The Netherlands
- EMGO Institute for Health and Care Research and the Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
| | - Saskia J. te Velde
- EMGO Institute for Health and Care Research and the Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
| | - Wim Stut
- Philips Research, Eindhoven, The Netherlands
| | - Yaacov Drory
- Department of Rehabilitation, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Johannes Brug
- Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty ofMedicine, Tel Aviv University, Tel Aviv, Israel
- AmsterdamSchool for Communication Research, University of Amsterdam, Amsterdam, The Netherlands
| | - Yariv Gerber
- Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty ofMedicine, Tel Aviv University, Tel Aviv, Israel
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Wens I, Eijnde BO, Hansen D. Muscular, cardiac, ventilatory and metabolic dysfunction in patients with multiple sclerosis: Implications for screening, clinical care and endurance and resistance exercise therapy, a scoping review. J Neurol Sci 2016; 367:107-21. [DOI: 10.1016/j.jns.2016.05.050] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 05/11/2016] [Accepted: 05/24/2016] [Indexed: 01/03/2023]
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Exercise Intolerance in Heart Failure: Did We Forget the Brain? Can J Cardiol 2016; 32:475-84. [DOI: 10.1016/j.cjca.2015.12.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 12/21/2015] [Accepted: 12/21/2015] [Indexed: 01/15/2023] Open
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Prior DL. Back to the future: re-evaluation of the possible role for oxygen supplementation during exercise in chronic heart failure. BRITISH HEART JOURNAL 2016; 102:571-2. [PMID: 26891755 DOI: 10.1136/heartjnl-2015-309192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
The field of quality-of-life (QOL) measurement grew out of attempts in the 1960s and 1970s to connect the ever-increasing levels of public expenditure on technology-based health care for chronic diseases with evidence of the benefits and harms to patients. Most of the concepts, methods, and standards for measuring QOL were derived from psychometrics, but the degree to which current tools adhere to these methods varies greatly. Despite the importance of QOL, patient-reported outcomes are not measured in most cardiovascular clinical trials. Lack of familiarity with QOL measures and their interpretation, and unrealistic expectations about the information these measures can provide, are obstacles to their use. Large clinical trials of revascularization therapy for coronary artery disease and medical treatments for heart failure show small-to-moderate QOL effects, primarily detected with disease-specific instruments. Larger treatment effects, seen in trials of device therapy for heart failure and ablation therapy for atrial fibrillation, have been detected with both generic and disease-specific instruments. A large gap remains between the parameters currently being measured in clinical research and the data needed to incorporate the 'patient's voice' into therapeutic decision-making.
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Affiliation(s)
- Daniel B Mark
- Duke Clinical Research Institute, 2400 Pratt Avenue, Room 0311, PO Box 17969, Durham, North Carolina 27715, USA
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Holdsworth CT, Ferguson SK, Poole DC, Musch TI. Modulation of rat skeletal muscle microvascular O2 pressure via KATP channel inhibition following the onset of contractions. Respir Physiol Neurobiol 2016; 222:48-54. [DOI: 10.1016/j.resp.2015.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/16/2015] [Accepted: 11/14/2015] [Indexed: 11/26/2022]
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Jurgens CY, Goodlin S, Dolansky M, Ahmed A, Fonarow GC, Boxer R, Arena R, Blank L, Buck HG, Cranmer K, Fleg JL, Lampert RJ, Lennie TA, Lindenfeld J, Piña IL, Semla TP, Trebbien P, Rich MW. Heart failure management in skilled nursing facilities: a scientific statement from the American Heart Association and the Heart Failure Society of America. J Card Fail 2016; 21:263-99. [PMID: 25863664 DOI: 10.1016/j.cardfail.2015.02.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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47
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Oliveira MF, Alencar MC, Arbex F, Souza A, Sperandio P, Medina L, Medeiros WM, Hirai DM, O'Donnell DE, Neder JA. Effects of heart failure on cerebral blood flow in COPD: Rest and exercise. Respir Physiol Neurobiol 2016; 221:41-8. [DOI: 10.1016/j.resp.2015.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 10/07/2015] [Accepted: 10/10/2015] [Indexed: 12/13/2022]
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Hirai DM, Musch TI, Poole DC. Exercise training in chronic heart failure: improving skeletal muscle O2 transport and utilization. Am J Physiol Heart Circ Physiol 2015; 309:H1419-39. [PMID: 26320036 DOI: 10.1152/ajpheart.00469.2015] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/23/2015] [Indexed: 01/13/2023]
Abstract
Chronic heart failure (CHF) impairs critical structural and functional components of the O2 transport pathway resulting in exercise intolerance and, consequently, reduced quality of life. In contrast, exercise training is capable of combating many of the CHF-induced impairments and enhancing the matching between skeletal muscle O2 delivery and utilization (Q̇mO2 and V̇mO2 , respectively). The Q̇mO2 /V̇mO2 ratio determines the microvascular O2 partial pressure (PmvO2 ), which represents the ultimate force driving blood-myocyte O2 flux (see Fig. 1). Improvements in perfusive and diffusive O2 conductances are essential to support faster rates of oxidative phosphorylation (reflected as faster V̇mO2 kinetics during transitions in metabolic demand) and reduce the reliance on anaerobic glycolysis and utilization of finite energy sources (thus lowering the magnitude of the O2 deficit) in trained CHF muscle. These adaptations contribute to attenuated muscle metabolic perturbations (e.g., changes in [PCr], [Cr], [ADP], and pH) and improved physical capacity (i.e., elevated critical power and maximal V̇mO2 ). Preservation of such plasticity in response to exercise training is crucial considering the dominant role of skeletal muscle dysfunction in the pathophysiology and increased morbidity/mortality of the CHF patient. This brief review focuses on the mechanistic bases for improved Q̇mO2 /V̇mO2 matching (and enhanced PmvO2 ) with exercise training in CHF with both preserved and reduced ejection fraction (HFpEF and HFrEF, respectively). Specifically, O2 convection within the skeletal muscle microcirculation, O2 diffusion from the red blood cell to the mitochondria, and muscle metabolic control are particularly susceptive to exercise training adaptations in CHF. Alternatives to traditional whole body endurance exercise training programs such as small muscle mass and inspiratory muscle training, pharmacological treatment (e.g., sildenafil and pentoxifylline), and dietary nitrate supplementation are also presented in light of their therapeutic potential. Adaptations within the skeletal muscle O2 transport and utilization system underlie improvements in physical capacity and quality of life in CHF and thus take center stage in the therapeutic management of these patients.
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Affiliation(s)
- Daniel M Hirai
- Department of Medicine, Queen's University, Kingston, Ontario, Canada; Department of Medicine, Federal University of São Paulo (UNIFESP), São Paulo, São Paulo, Brazil; and
| | - Timothy I Musch
- Departments of Anatomy and Physiology and Kinesiology, Kansas State University, Manhattan, Kansas
| | - David C Poole
- Departments of Anatomy and Physiology and Kinesiology, Kansas State University, Manhattan, Kansas
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Exercise physiology, testing, and training in patients supported by a left ventricular assist device. J Heart Lung Transplant 2015; 34:1005-16. [DOI: 10.1016/j.healun.2014.12.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 12/03/2014] [Accepted: 12/17/2014] [Indexed: 01/14/2023] Open
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Holloway TM, Bloemberg D, da Silva ML, Quadrilatero J, Spriet LL. High-intensity interval and endurance training are associated with divergent skeletal muscle adaptations in a rodent model of hypertension. Am J Physiol Regul Integr Comp Physiol 2015; 308:R927-34. [DOI: 10.1152/ajpregu.00048.2015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 04/08/2015] [Indexed: 12/11/2022]
Abstract
Skeletal muscle is extremely adaptable to a variety of metabolic challenges, as both traditional moderate-intensity endurance (ET) and high-intensity interval training (HIIT) increases oxidative potential in a coordinated manner. Although these responses have been clearly demonstrated in healthy individuals, it remains to be determined whether both produce similar responses in the context of hypertension, one of the most prevalent and costly diseases worldwide. Therefore, in the current study, we used the Dahl sodium-sensitive rat, a model of hypertension, to determine the molecular responses to 4 wk of either ET or HIIT in the red (RG) and white gastrocnemius (WG) muscles. In the RG, both ET and HIIT increased the content of electron transport chain proteins and increased succinate dehydrogenase (SDH) content in type I fibers. Although both intensities of exercise shifted fiber type in RG (increased IIA, decreased IIX), only HIIT was associated with a reduction in endothelial nitric oxide synthase and an increase in HIF-1α proteins. In the WG, both ET and HIIT increased markers of the electron transport chain; however, HIIT decreased SDH content in a fiber-specific manner. ET increased type IIA, decreased IIB fibers, and increased capillarization, while, in contrast, HIIT increased the percentage of IIB fibers, decreased capillary-to-fiber ratios, decreased endothelial nitric oxide synthase, and increased hypoxia inducible factor-1α (HIF-1α) protein. Altogether, these data show that unlike in healthy animals, ET and HIIT have divergent effects in the skeletal muscle of hypertensive rats. This suggests ET may be optimal at improving the oxidative capacity of skeletal muscle in animals with hypertension.
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Affiliation(s)
- Tanya M. Holloway
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada; and
| | - Darin Bloemberg
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Mayne L. da Silva
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada; and
| | - Joe Quadrilatero
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Lawrence L. Spriet
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada; and
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