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Exercise blood pressure and cardiovascular disease risk: a systematic review and meta-analysis of cross-sectional
Myles N Moore1, Rachel E Climie1,2, Petr Otahal1
1Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, Tasmania.
Background:
A hypertensive response to exercise (HRE) is associated with cardiovascular disease and high blood pressure (BP). A poor cardiovascular risk factor profile may underlie these associations, although this has not been systematically elucidated. Via systematic review and meta-analysis, we aimed to assess the relationship between exercise BP and cardiovascular risk factors, and determine if cardiovascular risk is higher in those with an HRE vs. no-HRE across different study populations (including those with/without high BP at rest).
Methods:
Three online databases were searched for cross-sectional studies reporting data on exercise BP, an HRE and cardiovascular risk factors (including arterial structure, lipid, metabolic, inflammatory and kidney function markers). Random-effects meta-analyses and meta-regression were used to calculate pooled correlations between exercise BP and each risk factor and pooled mean differences between those with/without an HRE.
Results:
Thirty-eight studies (38 295 participants, aged 50 ± 3years; 78% male) were included. Exercise SBP was associated with arterial, lipid and kidney function risk markers (P < 0.05). Those with an HRE had greater aortic stiffness (+0.80 ± 0.35 m/s), total (+0.14 ± 0.03 mmol/l) and low-density lipoprotein (+0.12 ± 0.03 mmol/l) cholesterol, triglycerides (+0.24 ± 0.04 mmol/l), glucose (+0.15 ± 0.05 mmol/l), white blood cell count (+0.49 ± 0.16 mmol/l) and albumin-to-creatinine ratio (standardized mean difference: +0.97 ± 0.34), and lower flow-mediated dilation (-4.13 ± 1.02%) and high-density lipoprotein cholesterol (-0.04 ± 0.01 mmol/l) vs. those with no-HRE (P < 0.05 all). Results were broadly similar across study populations.
Conclusion:
Exercise SBP is associated with multiple cardiovascular risk factors, which appear worse in those with an HRE vs. no-HRE. As results were similar across population groups, an HRE should be considered an important indicator of cardiovascular risk.
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