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The Association Between β-Blocker Use and Cardiorespiratory Fitness: The Maastricht Study.

ABSTRACT: PURPOSE::β-Blockers (BBs) have been associated with a reduced cardiorespiratory fitness (CRF). This is possibly caused by inhibition of β2-receptors in the airways. However, there are limited data available on β-receptor selectivity and CRF. We therefore aimed to assess the association between BB use and CRF and to assess the association between β-receptor selectivity and CRF. METHODS::Participants in the Maastricht Study were aged between 40 and 75 years. Exposure to BB use was determined by use of pharmacy records. General linear models were used to obtain adjusted means of 2 proxies for CRF: covered distance during the 6-minute walk test (6MWT) and estimated maximum power output adjusted for body mass ( Wmax kg-1) during the submaximal cycle ergometer test. Adjusted means were compared between current, past, and never BB users. Current users were subsequently stratified by β-receptor selectivity and dose. RESULTS::Compared to never use, current use was associated with a lower CRF, based on the 6MWT (current use: 569.7 m; never use: 580.4 m [ P = .010]), but not based on the cycling test (current use: 2.14 W kg-1; never use: 2.13 W kg-1 [ P = .690]). There was no difference between current selective and current nonselective BB use. CONCLUSION::β-Blockers use was associated with CRF based on the 6MWT but not the cycling test. There was no difference between current selective and nonselective BB users, possibly due to the small number of nonselective BB users, differential underlying diseases, other pharmacological properties, and limitations related to the proxies of the outcome.

SUBMITTER: Nielen JTH

PROVIDER: S-EPMC6297897 | biostudies-other | 2019 Jan

REPOSITORIES: biostudies-other

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The Association Between β-Blocker Use and Cardiorespiratory Fitness: The Maastricht Study.

Nielen Johannes T H JTH de Vries Frank F van der Velde Jeroen H P M JHPM Savelberg Hans H C M HHCM Schaper Nicolaas C NC Dagnelie Pieter C PC Henry Ronald M A RMA Schram Miranda M Stehouwer Coen D A CDA Boonen Annelies A Koster Annemarie A van den Bemt Bart J F BJF

Journal of cardiovascular pharmacology and therapeutics 20180524 1

<h4>Purpose</h4>β-Blockers (BBs) have been associated with a reduced cardiorespiratory fitness (CRF). This is possibly caused by inhibition of β2-receptors in the airways. However, there are limited data available on β-receptor selectivity and CRF. We therefore aimed to assess the association between BB use and CRF and to assess the association between β-receptor selectivity and CRF.<h4>Methods</h4>Participants in the Maastricht Study were aged between 40 and 75 years. Exposure to BB use was det ...[more]

PMID: 29793358

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Project description:Some, but not all, prior observational studies have shown that beta blocker (BB) use is associated with lower fracture risk and higher bone mineral density (BMD). Rodent studies show the mechanism to involve the reduction in the effects of beta-adrenergic signaling on bone remodeling. Because previous studies did not have detailed information on dose, duration, and beta-1 selectivity, we examined these in a cross-sectional analysis of the association between BB use and hip and spine BMD using DXA with the Offspring Cohort of the Framingham Heart Study. The sample size was n = 1520, and 397 individuals used BBs. We used propensity score modeling to balance a comprehensive set of covariates using inverse probability of treatment weighting (IPTW) to minimize bias due to treatment indication. We found significant differences in BMD between BB users and non-users for three of four BMD measurements (femoral neck: 3.1%, 95% CI, 1.1% to 5.0%; total femur: 2.9%, 95% CI, 0.9% to 4.9%; femoral trochanter: 2.4%, 95% CI, -0.1% to 5.0%; and lumbar spine: 2.7%, 95% CI, 0.2% to 5.0%). Results were found to be similar between sexes although the magnitude of association was larger for women. Similar differences were estimated for beta-1 selective and nonselective BBs compared with no BB use. We modeled dose in categories (no BB use, low-dose, high-dose) and as a continuous variable and found an increasing dose response that levels off at higher doses. Finally, associations were similar for short-term versus long-term (≤4 years versus >4 years) use. In summary, this large comprehensive study shows that BB use is associated with higher BMD in a dose-related manner regardless of beta-1 specificity and duration of use, which supports the conduct of a randomized clinical trial of BBs for achieving improvements in BMD for individuals at risk of bone loss with aging. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC. on behalf of American Society for Bone and Mineral Research.

Dataset Information

The Association Between β-Blocker Use and Cardiorespiratory Fitness: The Maastricht Study.

Publications

The Association Between β-Blocker Use and Cardiorespiratory Fitness: The Maastricht Study.

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