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exercise after myocardial infarction

Simone de Campos Neitzke Winter, Rafael Michel de Macedo, Júlio Cesar Francisco, Paula Costa Santos, Ana Paula Sarraff Lopes, Leanderson Franco de Meira, Katherine A Teixeira de Carvalho, José Rocha Faria Neto, Ana Carolina Brandt de Macedo, Luiz César Guarita-Souza
BACKGROUND: Physical exercise should be part of the treatment of post-acute myocardial infarction (AMI) patients. OBJECTIVE: To evaluate the effects of two training prescription models (continuous x interval) and its impact on ventricular function in rats after AMI with normal ventricular function. METHODS: Forty Wistar rats were evaluated by echocardiography 21 days after the AMI. Those with LVEF = 50% (n = 29) were included in the study and randomized to control group (CG n = 10), continuous training group (CTG n = 9) or interval training group (ITG, n = 10)...
March 12, 2018: Arquivos Brasileiros de Cardiologia
José V Subiela, Sonia H Torres, Juan B De Sanctis, Noelina Hernández
There is evidence that myocardial infarction (MI) patients have an inflammatory process that includes skeletal muscles, and exercise has been reported to reduce some inflammatory markers. The aim of this work was to study NO and some inflammatory markers in quadriceps muscle of MI patients before and after cardiac rehabilitation. Muscle biopsy was obtained in17 MI patients before and after CR and only once in 11 healthy subjects. Several cardiorespiratory and metabolic parameters were evaluated and skeletal muscle levels of nitric oxide synthases, nitrate, nitrite, nitrotyrosine, tumor necrosis factor alpha (TNF-α), transforming growth factor beta (TGF-β), interleukin- 6 (IL-6) and CD154...
March 10, 2018: Nitric Oxide: Biology and Chemistry
Stella de Souza Vieira, Ednei Luiz Antonio, Brunno Lemes de Melo, Leslie Andrews Portes, Jairo Montemor, Helenita Antônia Oliveira, Flavia Leticia Martins, Camila Zogbi, Adriana Costa Girardi, José Antônio Silva, Paulo de Tarso Camillo de Carvalho, Paulo José Ferreira Tucci, Andrey Jorge Serra
BACKGROUND: Preconditioning of cell recipients may exert a significant role in attenuating the hostility of the infarction milieu, thereby enhancing the efficacy of cell therapy. This study was conducted to examine whether exercise training potentiates the cardioprotective effects of adipose-derived stem cell (ADSC) transplantation following myocardial infarction (MI) in rats. METHODS: Four groups of female Fisher-344 rats were studied: Sham; non-trained rats with MI (sMI); non-trained rats with MI submitted to ADSCs transplantation (sADSC); trained rats with MI submitted to ADSCs (tADSC)...
November 22, 2017: Heart, Lung & Circulation
Sara Maldonado-Martín, Jon Ander Jayo-Montoya, Tatiana Matajira-Chia, Beatriz Villar-Zabala, Juan José Goiriena, G Rodrigo Aispuru
BACKGROUND: Exercise therapy has long been used for rehabilitation purposes after myocardial infarction (MI) and the benefit of regular physical exercise is also well-established. High-intensity interval training (HIIT) has been proposed to be more effective than continuous exercise for improving exercise capacity and health-related adaptations to low-volume (LV) and HIIT are also known. Furthermore, the Mediterranean diet (Mediet) has been widely reported to be a model of healthy eating for its contribution to a favorable health status and a better quality of life, reducing overall mortality...
March 2, 2018: Trials
Daniele J Feriani, Hélio J Coelho-Júnior, Juliana C M F de Oliveira, Maria A Delbin, Cristiano T Mostarda, Paulo M M Dourado, Érico C Caperuto, Maria C C Irigoyen, Bruno Rodrigues
Myocardial infarction (MI) remains the leading cause of morbidity and mortality worldwide. Exercise training and pharmacological treatments are important strategies to minimize the deleterious effects of MI. However, little is known about the effects of resistance training combined with pyridostigmine bromide (PYR) treatment on cardiac and autonomic function, as well as on the inflammatory profile after MI. Thus, in the present study, male Wistar rats were randomly assigned into: control (Cont); sedentary infarcted (Inf); PYR - treated sedentary infarcted rats (Inf+P); infarcted rats undergoing resistance exercise training (Inf+RT); and infarcted rats undergoing PYR treatment plus resistance training (Inf+RT+P)...
2018: Frontiers in Physiology
Yong Zhang, HongXia Cao, Pin Jiang, HaiQin Tang
BACKGROUND: Acute myocardial infarction (AMI) is one of the leading causes of death and physical disability worldwide. However, the development of community- based cardiac rehabilitation (CR) in AMI patients is hysteretic. Here, we aimed to evaluate the safety and efficacy of CR applied in the community in AMI patients who underwent percutaneous coronary intervention (PCI). METHODS: A total of 130 ST-segment elevated myocardial infarction (STEMI) patients after PCI were randomly divided into 2 groups in the community, rehabilitation group (n = 65) and control group (n = 65)...
February 2018: Medicine (Baltimore)
Ivano Bonadei, Edoardo Sciatti, Enrico Vizzardi, Davide Fabbricatore, Mattia Pagnoni, Laura Rossi, Valentina Carubelli, Carlo M Lombardi, Marco Metra
AIM: Heart rate (HR) is an important prognostic factor in patients affected by chronic heart failure (CHF); ivabradine has been demonstrated to significantly reduce nonfatal myocardial infarction and hospitalization rate for acute heart failure and to improve left ventricular (LV) reverse remodelling, quality of life, exercise capacity and arterial elastance (Ea) in these patients. We aimed at evaluating the short-term effects of ivabradine on ventricular-arterial coupling (VAC), aortic stiffness and endothelial function in stable patients with CHF...
February 20, 2018: Cardiovascular Therapeutics
Viola Vaccarino, Samaah Sullivan, Muhammad Hammadah, Kobina Wilmot, Ibhar Al Mheid, Ronnie Ramadan, Lisa Elon, Pratik M Pimple, Ernest V Garcia, Jonathon Nye, Amit J Shah, Ayman Alkhoder, Oleksiy Levantsevych, Hawkins Gay, Malik Obideen, Minxuan Huang, Tené T Lewis, J Douglas Bremner, Arshed A Quyyumi, Paolo Raggi
BACKGROUND: Mental stress-induced myocardial ischemia (MSIMI) is frequent in patients with coronary artery disease and is associated with worse prognosis. Young women with a previous myocardial infarction (MI), a group with unexplained higher mortality than men of comparable age, have shown elevated rates of MSIMI, but the mechanisms are unknown. METHODS: We studied 306 patients (150 women and 156 men) ≤61 years of age who were hospitalized for MI in the previous 8 months and 112 community controls (58 women and 54 men) frequency matched for sex and age to the patients with MI...
February 20, 2018: Circulation
Cesare de Gregorio
Regardless of advances in medical and interventional treatment of cardiovascular disease (CVD), a limited number of patients attend a cardiac rehabilitation (CR) programme on a regular basis. Due to modern therapies more individuals will be surviving an acute cardiovascular event, but the expected burden of chronic heart failure will be increasing worldwide.However, both in high- and low-income countries, secondary prevention after an acute myocardial infarction or stroke has been implemented in less than a half of eligible patients...
February 17, 2018: Advances in Experimental Medicine and Biology
Mandreker Bahall, Katija Khan
BACKGROUND: Outcomes following acute myocardial infarction (AMI) may result in death, increased morbidity, and change in quality of life (QOL). This study explores health-related QOL of first-time patients following AMI. METHODS: This cross-sectional study used a sample of patients with first-time AMI experienced between April 2011 and March 2015 at a tertiary health institution. Recruited patients belonged to different post-AMI periods: 2-10 weeks, 5-22 months, and > 22 months to 4 years post AMI...
February 13, 2018: Health and Quality of Life Outcomes
Gordon McGregor, Eric J Stöhr, David Oxborough, Peter Kimani, Rob Shave
BACKGROUND: Cardiac rehabilitation (CR) exercise training is beneficial after myocardial infarction (MI). Whilst the peripheral adaptations to training are well defined, little is known regarding the effect on left ventricular (LV) remodelling, particularly LV function. Efficient LV ejection and filling is achieved through deformation and rotation of the myocardium in systole and diastole - LV mechanics. The response of LV mechanics to CR exercise training in MI patients is unknown. METHODS: In this observational exploratory study, 36 (of 40 enrolled) male, MI patients completed either 10-weeks of twice-weekly gym based cardiovascular exercise at 60-80% VO2peak (n=18), or a non-exercise control period (n=18)...
January 31, 2018: Annals of Physical and Rehabilitation Medicine
Theodore Pipikos, Alkistis Kapelouzou, Diamantis I Tsilimigras, Yannis Fostinis, Marina Pipikou, Athanassios Theodorakos, Antonis N Pavlidis, Christos Kontogiannis, Dennis V Cokkinos, Maria Koutelou
BACKGROUND: Acute myocardial infarction (AMI) is considered a major cause of death and disability. Myocardial perfusion scintigraphy (MPS) as a non-invasive diagnostic imaging procedure and certain biomarkers associated with myocardial ischemia (ISCH), such as ischemia-modified albumin (IMA), neuropeptide Y (NPY), N-terminal pro b-type natriuretic peptide (NT-proBNP), and high-sensitivity troponin T (hsTnT) could probably aid in the detection of myocardial infarction. METHODS: Between December 2011 and June 2012, we prospectively analyzed patients who underwent a MPS study with the clinical question of myocardial ISCH...
January 29, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
Masaki Kodaira, Takahito Itoh, Kiyoshi Koizumi, Yohei Numasawa
Although exercise testing has become a standard procedure before discharge for patients with acute coronary syndrome, a fatal accident during the test is extremely rare. A 60-year-old man was admitted for a non-ST-segment elevation myocardial infarction. A coronary angiogram showed stenosis at the distal lesion of the circumflex, and a balloon angioplasty was performed. His recovery was smooth, and a cardiopulmonary exercise test was performed 5 days after admission. At 2.5 metabolic equivalents, he suddenly went into cardiac arrest, and percutaneous cardiopulmonary support was initiated...
January 24, 2018: BMJ Case Reports
Øyvind Skadberg, Øyunn Kleiven, Stein Ørn, Magnus F Bjørkavoll-Bergseth, Tor H Melberg, Torbjørn Omland, Kristin M Aakre
BACKGROUND: The aim of this study was to investigate troponin (cTn) dynamics for both genders, compared the different release patterns to the gender specific 99th percentile and to current biomarker criteria for diagnosing myocardial infarction (MI). METHODS: Serum was collected from 97 recreational cyclists 24 h before and immediately, 3 and 24 h following a 91-km bike race. hs-cTnI (Abbott) and hs-cTnT (Roche) were measured. Conventional or CT coronary angiography was performed in the 13 participants with the highest hs-cTnI (>140 ng/L)...
January 20, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
Rayane Brinck Teixeira, Alexsandra Zimmer, Alexandre Luz de Castro, Cristina Campos Carraro, Karina Rabello Casali, Ingrid Gonçalves Machuca Dias, Alessandra Eifler Guerra Godoy, Isnard Elman Litvin, Adriane Belló-Klein, Alex Sander da Rosa Araujo
AIMS: This study aimed to investigate whether beneficial effects of thyroid hormones are comparable to those provided by the aerobic exercise training, to verify its applicability as a therapeutic alternative to reverse the pathological cardiac remodeling post-infarction. MATERIALS AND METHODS: Male rats were divided into SHAM-operated (SHAM), myocardial infarction (MI), MI subjected to exercise training (MIE), and MI who received T3 and T4 treatment (MIH) (n = 8/group)...
January 20, 2018: Life Sciences
Hyun Ho Kong, Heui Je Bang, Jae Ung Ko, Goo Joo Lee
Objective: To determine the age-related changes in cardiac rehabilitation (CR) outcomes, which includes hemodynamic and metabolic factors, in patients with myocardial infarction (MI). Methods: CR was administered for 8 weeks to 32 men (mean age, 54.0±8.8 years) who underwent percutaneous coronary intervention for acute MI between July 2012 and January 2016. The exercise tolerance tests were performed before and after the CR. The results were stratified based on a cut-off age of 55 years...
December 2017: Annals of Rehabilitation Medicine
Ji-Hyun Kim, Yu-Ri Choe, Min-Keun Song, In-Sung Choi, Jae-Young Han
Objective: To determine whether heart rate recovery (HRR) following an exercise tolerance test (ETT) is correlated with a changing ratio of peak oxygen consumption (VO2) and maximal metabolic equivalents (METmax). Methods: A total of 60 acute myocardial infarction (AMI) patients who underwent ETT at both assessment points - 3 weeks (T0) after the AMI attack and 3 months after T0 (T1) were included. After achieving a peak workload, the treadmill was stopped with a 5-minute cooldown period, and the patients recovered in a comfortable and relaxed seated position...
December 2017: Annals of Rehabilitation Medicine
Kai M Eggers, Nermin Hadziosmanovic, Tomasz Baron, Kristina Hambraeus, Tomas Jernberg, Anna Nordenskjöld, Per Tornvall, Bertil Lindahl
BACKGROUND: Approximately 5% to 10% of all patients with myocardial infarction have nonobstructive coronary arteries. Studies investigating the importance of follow-up and achievement of conventional secondary prevention targets in these patients are lacking. METHODS: In this analysis from the Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies (SWEDEHEART) registry, we investigated 5830 patients with myocardial infarction with nonobstructive coronary arteries (group 1) and 54,637 patients with myocardial infarction with significant coronary artery disease (≥50% stenosis; group 2)...
December 26, 2017: American Journal of Medicine
Xiaohua Xu, Wenhan Wan, Michael A Garza, John Q Zhang
Thyroid hormone receptors (TRs) play a critical role in the expression of genes that are major determinants of myocardial contractility, including α-myosin heavy chain (α-MHC) and β-MHC. After myocardial infarction (MI), changes in myocardial TRs consistently correlate with changes in thyroid hormone (TH) target gene transcription, and this is thought to play a key role in the progression to end-stage heart failure. Interestingly, post-MI exercise training has been shown to beneficially alter TH-target gene transcription and preserve cardiac function without changing serum TH...
December 22, 2017: Journal of Physiological Sciences: JPS
Lourdes Vicent, Albert Ariza-Solé, José Ramón González-Juanatey, Aitor Uribarri, José Ortiz, Esteban López de Sá, Jordi Sans-Roselló, Carlos Tomás Querol, Pau Codina, Iago Sousa-Casasnovas, Manuel Martínez-Sellés
BACKGROUND: Physical activity has benefits on health. However, there is a small risk of effort-related adverse events. The aim of this study is to describe exercise-related severe cardiovascular events and to relate them with the type of sport performed. METHODS: Ten-year retrospective study in 8 Spanish cardiac intensive care units. Adverse cardiac events were defined as acute myocardial infarction, cardiac arrest, or syncope related to physical activity. RESULTS: From 117 patients included, 109 were male (93...
December 13, 2017: Scandinavian Journal of Medicine & Science in Sports
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