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Meta-Analysis
. 2015 Sep;105(3):301-8.
doi: 10.5935/abc.20150048. Epub 2015 May 19.

Impact of physical activity interventions on blood pressure in Brazilian populations

[Article in English, Portuguese]
Vivian Freitas Rezende Bento  1 , Flávia Barbizan Albino  1 , Karen Fernandes de Moura  1 , Gustavo Jorge Maftum  1 , Mauro de Castro dos" Santos  1 , Luiz César Guarita-Souza  1 , José Rocha Faria Neto  1 , Cristina Pellegrino Baena  1
Affiliations
Meta-Analysis

Impact of physical activity interventions on blood pressure in Brazilian populations

[Article in English, Portuguese]
Vivian Freitas Rezende Bento et al. Arq Bras Cardiol. 2015 Sep.

Abstract

Background: High blood pressure is associated with cardiovascular disease, which is the leading cause of mortality in the Brazilian population. Lifestyle changes, including physical activity, are important for lowering blood pressure levels and decreasing the costs associated with outcomes.

Objective: Assess the impact of physical activity interventions on blood pressure in Brazilian individuals.

Methods: Meta-analysis and systematic review of studies published until May 2014, retrieved from several health sciences databases. Seven studies with 493 participants were included. The analysis included parallel studies of physical activity interventions in adult populations in Brazil with a description of blood pressure (mmHg) before and after the intervention in the control and intervention groups.

Results: Of 390 retrieved studies, eight matched the proposed inclusion criteria for the systematic review and seven randomized clinical trials were included in the meta-analysis. Physical activity interventions included aerobic and resistance exercises. There was a reduction of -10.09 (95% CI: -18.76 to -1.43 mmHg) in the systolic and -7.47 (95% CI: -11.30 to -3.63 mmHg) in the diastolic blood pressure.

Conclusions: Available evidence on the effects of physical activity on blood pressure in the Brazilian population shows a homogeneous and significant effect at both systolic and diastolic blood pressures. However, the strength of the included studies was low and the methodological quality was also low and/or regular. Larger studies with more rigorous methodology are necessary to build robust evidence.

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Conflict of interest statement

Potential Conflict of Interest

No potential conflict of interest relevant to this article was reported.

Figures

Figure 1
Figure 1
Flowchart of the selection process of the studies.
Figure 2
Figure 2
Meta-analysis of the effects of physical activity intervention on systolic and diastolic blood pressures in the Brazilian population.
Figure 3
Figure 3
Evaluation of the risk of publication bias – Cochrane tool (adapted).
Figure 4
Figure 4
Funnel plot of the studies included in the meta-analysis.
See this image and copyright information in PMC

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