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Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach
BACKGROUND: Normal pregnancy is associated with marked changes in haemodynamic function, however the influence and potential benefits of antenatal physical exercise at different stages of pregnancy and postpartum remain unclear. The aim of this study was therefore to characterise the influence of re...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4546133/ https://www.ncbi.nlm.nih.gov/pubmed/26296647 http://dx.doi.org/10.1186/s12884-015-0620-2 |
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author | Carpenter, Rhiannon Emma Emery, Simon J. Uzun, Orhan D’Silva, Lindsay A. Lewis, Michael J. |
author_facet | Carpenter, Rhiannon Emma Emery, Simon J. Uzun, Orhan D’Silva, Lindsay A. Lewis, Michael J. |
author_sort | Carpenter, Rhiannon Emma |
collection | PubMed |
description | BACKGROUND: Normal pregnancy is associated with marked changes in haemodynamic function, however the influence and potential benefits of antenatal physical exercise at different stages of pregnancy and postpartum remain unclear. The aim of this study was therefore to characterise the influence of regular physical exercise on haemodynamic variables at different stages of pregnancy and also in the postpartum period. METHODS: Fifity healthy pregnant women were recruited and randomly assigned (2 × 2 × 2 design) to a land or water-based exercise group or a control group. Exercising groups attended weekly classes from the 20th week of pregnancy onwards. Haemodynamic assessments (heart rate, cardiac output, stroke volume, total peripheral resistance, systolic and diastolic blood pressure and end diastolic index) were performed using the Task Force haemodynamic monitor at 12–16, 26–28, 34–36 and 12 weeks following birth, during a protocol including postural manoeurvres (supine and standing) and light exercise. RESULTS: In response to an acute bout of exercise in the postpartum period, stroke volume and end diastolic index were greater in the exercise group than the non-exercising control group (p = 0.041 and p = 0.028 respectively). Total peripheral resistance and diastolic blood pressure were also lower (p = 0.015 and p = 0.007, respectively) in the exercise group. Diastolic blood pressure was lower in the exercise group during the second trimester (p = 0.030). CONCLUSIONS: Antenatal exercise does not appear to substantially alter maternal physiology with advancing gestation, speculating that the already vast changes in maternal physiology mask the influences of antenatal exercise, however it does appear to result in an improvement in a woman’s haemodynamic function (enhanced ventricular ejection performance and reduced blood pressure) following the end of pregnancy. TRIAL REGISTRATION: ClinicalTrials.gov NCT02503995. Registered 20 July 2015. |
format | Online Article Text |
id | pubmed-4546133 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-45461332015-08-23 Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach Carpenter, Rhiannon Emma Emery, Simon J. Uzun, Orhan D’Silva, Lindsay A. Lewis, Michael J. BMC Pregnancy Childbirth Research Article BACKGROUND: Normal pregnancy is associated with marked changes in haemodynamic function, however the influence and potential benefits of antenatal physical exercise at different stages of pregnancy and postpartum remain unclear. The aim of this study was therefore to characterise the influence of regular physical exercise on haemodynamic variables at different stages of pregnancy and also in the postpartum period. METHODS: Fifity healthy pregnant women were recruited and randomly assigned (2 × 2 × 2 design) to a land or water-based exercise group or a control group. Exercising groups attended weekly classes from the 20th week of pregnancy onwards. Haemodynamic assessments (heart rate, cardiac output, stroke volume, total peripheral resistance, systolic and diastolic blood pressure and end diastolic index) were performed using the Task Force haemodynamic monitor at 12–16, 26–28, 34–36 and 12 weeks following birth, during a protocol including postural manoeurvres (supine and standing) and light exercise. RESULTS: In response to an acute bout of exercise in the postpartum period, stroke volume and end diastolic index were greater in the exercise group than the non-exercising control group (p = 0.041 and p = 0.028 respectively). Total peripheral resistance and diastolic blood pressure were also lower (p = 0.015 and p = 0.007, respectively) in the exercise group. Diastolic blood pressure was lower in the exercise group during the second trimester (p = 0.030). CONCLUSIONS: Antenatal exercise does not appear to substantially alter maternal physiology with advancing gestation, speculating that the already vast changes in maternal physiology mask the influences of antenatal exercise, however it does appear to result in an improvement in a woman’s haemodynamic function (enhanced ventricular ejection performance and reduced blood pressure) following the end of pregnancy. TRIAL REGISTRATION: ClinicalTrials.gov NCT02503995. Registered 20 July 2015. BioMed Central 2015-08-22 /pmc/articles/PMC4546133/ /pubmed/26296647 http://dx.doi.org/10.1186/s12884-015-0620-2 Text en © Carpenter et al. 2015 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Carpenter, Rhiannon Emma Emery, Simon J. Uzun, Orhan D’Silva, Lindsay A. Lewis, Michael J. Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach |
title | Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach |
title_full | Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach |
title_fullStr | Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach |
title_full_unstemmed | Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach |
title_short | Influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach |
title_sort | influence of antenatal physical exercise on haemodynamics in pregnant women: a flexible randomisation approach |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4546133/ https://www.ncbi.nlm.nih.gov/pubmed/26296647 http://dx.doi.org/10.1186/s12884-015-0620-2 |
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