Acute volume expansion decreased baroreflex response after swimming but not after running exercise training in hypertensive rats.

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dc.contributor.authorFernandes, Élida Mercês Raimundo
dc.contributor.authorMoura, Samara Silva de
dc.contributor.authorSilva, Ronan Oliveira
dc.contributor.authorTotou, Nádia Lúcia
dc.contributor.authorBaleeiro, Raianne dos Santos
dc.contributor.authorOliveira, Emerson Cruz de
dc.contributor.authorCoelho, Daniel Barbosa
dc.contributor.authorCardoso, Leonardo Máximo
dc.contributor.authorOliveira, Lenice Kappes Becker
dc.date.accessioned2020-03-06T11:41:05Z
dc.date.available2020-03-06T11:41:05Z
dc.date.issued2019
dc.description.abstractBackground: Physical training (ET) is important to restore the reflex sensitivity involved in controlling blood pressure in various diseases. Recent investigations have demonstrated an interaction between cardiopulmonar baroreceptors and arterial baroreflex during dynamic exercise.Objective: Considering that acute and chronic hemodynamic responses to swimming (SW) are different from the race (RUN), the objective of this study was to evaluate the effect of SW and RUN on baroreflex response before and after acute volume expansion in spontaneously hypertensive rats (SHR).Methods: SHR were divided into three groups: RUN, SW and sedentary (SED) groups. After training, the mean arterial pressure (MAP) and heart rate (HR) were recorded. Baroreflex response was assessed before and after acute volume expansion.Results: Both ET conditions reduced basal levels of HR and MAP. The first volume of injected isotonic saline solution (1.25% of body weight) produced a greater decrease in HR for the SW group (−105.8 ± 8.7 bpm) compared to RUN groups (−68 ± 5.2 bpm) and SED(−49.8 ± 7.2 bpm). Both training modalities increase the baroreflex response in relation to the SED group, but after the total volume expansion, the SW group presented attenuated response (0.7 ± 0.1 μPIms/mmHg) compared to RUN (1.5 ± 0.17 PIms/mmHg) and was not different from SED group (0.8 ± 0.2 mPIms/mmHg). Conclusion: The results show that the swim-trained group has a different baroreflex response to that observed by the run-trained group after the activation of the load receptors by saline expansion.pt_BR
dc.identifier.citationFERNANDES, E. M. R. et al. Acute volume expansion decreased baroreflex response after swimming but not after running exercise training in hypertensive rats. Clinical and Experimental Hypertension, p. 1-9, nov. 2019. Disponível em: <https://www.tandfonline.com/doi/full/10.1080/10641963.2019.1693588>. Acesso em: 10 fev. 2020.pt_BR
dc.identifier.doihttps://doi.org/10.1080/10641963.2019.1693588pt_BR
dc.identifier.issn1525-6006
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/11967
dc.identifier.uri2https://www.tandfonline.com/doi/full/10.1080/10641963.2019.1693588pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectSpontaneously rats and blood pressurept_BR
dc.titleAcute volume expansion decreased baroreflex response after swimming but not after running exercise training in hypertensive rats.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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