Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study
Abstract The study of myocardial contractility, based on the new anatomical concepts that govern cardiac mechanics, represents a promising strategy of analysis of myocardial adaptations related to physical training in the context of post-infarction. We investigated the influence of aerobic training...
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doaj-8835c2cf43cc42d9ba58fccc9fa7bdd22020-11-24T23:30:57ZengSociedade Brasileira de Cardiologia (SBC)Arquivos Brasileiros de Cardiologia1678-4170110438338710.5935/abc.20180049S0066-782X2018000400383Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot StudyGiovani Luiz De SantiHenrique Turin MoreiraEduardo Elias Vieira de CarvalhoJúlio César CrescêncioAndré SchmidtJosé Antônio Marin-NetoLourenço Gallo-JúniorAbstract The study of myocardial contractility, based on the new anatomical concepts that govern cardiac mechanics, represents a promising strategy of analysis of myocardial adaptations related to physical training in the context of post-infarction. We investigated the influence of aerobic training on physical capacity and on the evaluation parameters of left ventricular contraction mechanics in patients with myocardial infarction. Thirty-one patients (55.1 ± 8.9 years) who had myocardial infarction in the anterior wall were prospectively investigated in three groups: interval training group (ITG) (n = 10), moderate training group (MTG) n = 10) and control group (CG) (n = 10). Before and after 12 weeks of clinical follow-up, patients underwent cardiopulmonary exercise testing and cardiac magnetic resonance imaging. The trained groups performed supervised aerobic training on treadmill, in two different intensities. A statistically significant increase in peak oxygen uptake (VO2) was observed in the ITG (19.2 ± 5.1 at 21.9 ± 5.6 ml/kg/min, p < 0.01) and in the MTG 18.8 ± 3.7 to 21.6 ± 4.5 ml/kg/min, p < 0.01). The GC did not present a statistically significant change in peak VO2. A statistically significant increase in radial strain (STRAD) was observed in the CG: basal STRAD (57.4 ± 16.6 to 84.1 ± 30.9%, p < 0.05), medial STRAD (57.8 ± 27, 9 to 74.3 ± 36.1%, p < 0.05) and apical STRAD (38.2 ± 26.0 to 52.4 ± 29.8%, p < 0.01). The trained groups did not present a statistically significant change of the radial strain. The present study points to a potential clinical application of the parameters of ventricular contraction mechanics analysis, especially radial strain, to discriminate post-infarction myocardial adaptations between patients submitted or not to aerobic training programs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2018000400383&lng=en&tlng=enExercícioReabilitaçãoInfarto do MiocárdioContração MiocárdicaVolume SistólicoImagem por Ressonância Magnética |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Giovani Luiz De Santi Henrique Turin Moreira Eduardo Elias Vieira de Carvalho Júlio César Crescêncio André Schmidt José Antônio Marin-Neto Lourenço Gallo-Júnior |
spellingShingle |
Giovani Luiz De Santi Henrique Turin Moreira Eduardo Elias Vieira de Carvalho Júlio César Crescêncio André Schmidt José Antônio Marin-Neto Lourenço Gallo-Júnior Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study Arquivos Brasileiros de Cardiologia Exercício Reabilitação Infarto do Miocárdio Contração Miocárdica Volume Sistólico Imagem por Ressonância Magnética |
author_facet |
Giovani Luiz De Santi Henrique Turin Moreira Eduardo Elias Vieira de Carvalho Júlio César Crescêncio André Schmidt José Antônio Marin-Neto Lourenço Gallo-Júnior |
author_sort |
Giovani Luiz De Santi |
title |
Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study |
title_short |
Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study |
title_full |
Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study |
title_fullStr |
Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study |
title_full_unstemmed |
Influence of Aerobic Training on The Mechanics of Ventricular Contraction After Acute Myocardial Infarction: A Pilot Study |
title_sort |
influence of aerobic training on the mechanics of ventricular contraction after acute myocardial infarction: a pilot study |
publisher |
Sociedade Brasileira de Cardiologia (SBC) |
series |
Arquivos Brasileiros de Cardiologia |
issn |
1678-4170 |
description |
Abstract The study of myocardial contractility, based on the new anatomical concepts that govern cardiac mechanics, represents a promising strategy of analysis of myocardial adaptations related to physical training in the context of post-infarction. We investigated the influence of aerobic training on physical capacity and on the evaluation parameters of left ventricular contraction mechanics in patients with myocardial infarction. Thirty-one patients (55.1 ± 8.9 years) who had myocardial infarction in the anterior wall were prospectively investigated in three groups: interval training group (ITG) (n = 10), moderate training group (MTG) n = 10) and control group (CG) (n = 10). Before and after 12 weeks of clinical follow-up, patients underwent cardiopulmonary exercise testing and cardiac magnetic resonance imaging. The trained groups performed supervised aerobic training on treadmill, in two different intensities. A statistically significant increase in peak oxygen uptake (VO2) was observed in the ITG (19.2 ± 5.1 at 21.9 ± 5.6 ml/kg/min, p < 0.01) and in the MTG 18.8 ± 3.7 to 21.6 ± 4.5 ml/kg/min, p < 0.01). The GC did not present a statistically significant change in peak VO2. A statistically significant increase in radial strain (STRAD) was observed in the CG: basal STRAD (57.4 ± 16.6 to 84.1 ± 30.9%, p < 0.05), medial STRAD (57.8 ± 27, 9 to 74.3 ± 36.1%, p < 0.05) and apical STRAD (38.2 ± 26.0 to 52.4 ± 29.8%, p < 0.01). The trained groups did not present a statistically significant change of the radial strain. The present study points to a potential clinical application of the parameters of ventricular contraction mechanics analysis, especially radial strain, to discriminate post-infarction myocardial adaptations between patients submitted or not to aerobic training programs. |
topic |
Exercício Reabilitação Infarto do Miocárdio Contração Miocárdica Volume Sistólico Imagem por Ressonância Magnética |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2018000400383&lng=en&tlng=en |
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