Autor | Borges, Juliana Pereira | |
Autor | França, Guilherme de Oliveira | |
Autor | Cruz, Mariana Delgado | |
Autor | Lanza, Rômulo | |
Autor | Nascimento, Alessandro Rodrigues do | |
Autor | Lessa, Marcos Adriano | |
Data de acesso | 2017-06-20T14:22:02Z | |
Data de disponibilização | 2017-06-20T14:22:02Z | |
Data do publicação | 2017 | |
Citação | BORGES, Juliana Pereira; et al. Aerobic exercise training induces superior cardioprotection following myocardial ischemia reperfusion injury than a single aerobic exercise session in rats. Motriz, v.23, Special issue, e101620, 2017. | pt_BR |
ISSN | 1980-6574 | pt_BR |
URI | https://www.arca.fiocruz.br/handle/icict/19434 | |
Idioma | eng | pt_BR |
Editor | Universidade Estadual Paulista | pt_BR |
Direito Autoral | open access | pt_BR |
Palavras-chave | Isquemia e reperfusão | pt_BR |
Palavras-chave | Treinamento de exercícios aeróbicos | pt_BR |
Título | Aerobic exercise training induces superior cardioprotection following myocardial ischemia reperfusion injury than a single aerobic exercise session in rats | pt_BR |
Tipo do documento | Article | pt_BR |
DOI | 10.1590/S1980-6574201700SI0011 | |
Resumo em Inglês | Abstract — Aim: To compare the amount of cardioprotection induced by a single exercise session with those achieved
after an 8-week aerobic exercise training following ischemia reperfusion injury in rats. Methods: Twenty-five male
Wistar rats (250-300g) were assigned into a group submitted to physical training (TR; n=12) or a single maximal
exercise session (EXE; n=13). Following sedentarism or physical training (8 weeks, 5 sessions/wk, 1h/session at 70%
of maximal speed) both groups performed a maximal exercise test. Then, groups were submitted to ischemia reperfusion
injury (30 min/1h) through an isolated heart protocol, in which left ventricle developed pressure was measured.
Results: The TR group presented greater maximal oxygen consumption compared to the EXE group (77.25±20.41 vs
41.32±25.86 ml/Kg/min; P=0.003). Regarding left ventricle developed pressure, no differences were detected between
groups at baseline (TR: 89.78±24.40 vs EXE: 81.37±31.84 mmHg; P=0.48). However, after reperfusion, the TR group
presented superior intraventricular pressure than EXE group (37.94±18.34 vs 21.59±13.67 mmHg; P=0.03). Conclusion:
Eight-week aerobic training induced greater cardioprotection against ischemia reperfusion injury in rats compared to a
single exercise session, due to an increased cardiac function. This suggests that exercise-induced cardioprotection is a
multifactorial process that may involve different mediators according to the exercise duration. | pt_BR |
Afiliação | Universidade do Estadol do Rio de Janeiro, Rio de Janeiro, RJ, Brasil. | pt_BR |
Afiliação | Universidade do Estadol do Rio de Janeiro, Rio de Janeiro, RJ, Brasil. | pt_BR |
Afiliação | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ. Brasil. | pt_BR |
Afiliação | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ. Brasil. | pt_BR |
Afiliação | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ. Brasil. | pt_BR |
Afiliação | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ. Brasil. | pt_BR |
Palavras-chave em inglês | ischemia and reperfusion | pt_BR |
Palavras-chave em inglês | aerobic exercise training | pt_BR |
Palavras-chave em inglês | Langendorff | pt_BR |