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Effects of Aerobic Combined with Resistance Exercise on Cardiorespiratory Fitness and Cardiometabolic Health in Breast Cancer Survivors: A Systematic Review, Meta-analysis and Meta-regression

Overview
Journal Heliyon
Specialty Social Sciences
Date 2024 Feb 22
PMID 38384575
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Abstract

Background: Cardiotoxicity from chemotherapy is a serious risk to the quality of survival of breast cancer survivors (BCS), and aerobic combined with resistance exercise (CE) has the potential to combat this cardiac damage. However, there is a lack of high-quality studies to assess the specific effects of CE. This study aimed to investigate the effects of CE on cardiopulmonary function (CRF) and cardiometabolic health in BCS.

Methods: A comprehensively searched of the 4 databases (PubMed, Embase, Web of Science, Cochrane Library) from the database construction until March 1, 2023. The included studies were randomized controlled trials (RCTs) reporting the effects of CE on CRF and cardiometabolic health in BCS. The quality of the literature was assessed by two independent reviewers using the Cochrane Collaboration Risk of Bias Tool. Weight means difference (WMD), or standardized mean difference (SMD), were combined using random or fixed effects models. Subgroup and meta-regression explored heterogeneity as well as covariate effects.

Results: 40 studies were included in the meta-analysis, with 2849 participants. Results showed that CE significantly increased maximal oxygen uptake (VOmax) (WMD:4.55; 95% CI:2.84, 6.26; I = 91.90%, P < 0.001) and reduced body weight (BW) (WMD: 1.61; 95% CI: 2.44, -0.78; I = 38.60%, P = 0.032) and body mass index (BMI) (WMD: 0.86; 95% CI: 1.43, -0.29; I = 70.50%, P < 0.001) in BCS. Subgroup analysis showed that BMI (WMD: 1.15; 95% CI: 1.89, -0.41; I = 76.90%, P < 0.001) and VOmax (WMD:4.21; 95% CI:2.40, 6.02; I = 96.4%, P < 0.001) were more effective with supervision. Meta-regression analysis showed that sample size had a significant moderating effect on BW (Coeff: 0.03, 95% CI: 0.00, 0.06).

Conclusions: CE significantly increases CRF in BCS and improves most cardiometabolic health-related outcomes. In addition, there will be a need for many larger RCTs to explore the effects of CE on inflammatory biomarkers in BCS.

Citing Articles

Telemedicine-based exercise intervention in cancer survivors: a non-randomized controlled trial.

Krell V, Porst J, Hafermann L, Kuhn J, Greiss F, Romer C Sci Rep. 2024; 14(1):30615.

PMID: 39715788 PMC: 11666603. DOI: 10.1038/s41598-024-83846-x.

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