Can blood‐flow restriction resistance training enhance remote strength transfer? A systematic review with meta‐analysis

Pm & R Pub Date : 2024-06-22 DOI:10.1002/pmrj.13200

Miguel Ángel Rodríguez, Irene Crespo, Marcos Quintana‐Cepedal, María Fernández‐del Valle, Miguel del Valle, Hugo Olmedillas

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Abstract

ObjectivesThis systematic review with meta‐analysis aimed to examine the effect of blood flow restriction resistance training (BFR‐RT) on strength gains in untrained limbs (remote strength transfer [RST]).Literature SurveyA search for studies was performed using six databases (PubMed/MEDLINE, Scopus, Web of Science, Cochrane Library, SPORTDiscus, and ScienceDirect) up to February 2024.MethodologyStudies that assessed the RST phenomenon following BFR‐RT and measured muscle strength were included. Meta‐analyses of standardized mean differences (SMDs) were performed using a random‐effects model to determine the effect of BFR‐RT on RST.SynthesisEight studies were included in this systematic review, of which six were involved in the meta‐analyses. BFR‐RT was not found to enhance RST in comparison with RT (SMD 0.27, 95% confidence interval [CI]: −0.02 to 0.56; p = .07). These findings did not vary when the comparison was examined in upper limbs or measured using an isometric contraction.ConclusionsBFR‐RT does not enhance RST in comparison with traditional RT at the same load according to the meta‐analyses. Therefore, the usage of BFR is not recommended for RST.

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血流限制阻力训练能增强远程力量转移吗？系统回顾与荟萃分析

目的本系统综述和荟萃分析旨在研究血流限制阻力训练（BFR-RT）对未训练肢体力量增长（远程力量转移 [RST]）的影响。方法纳入了评估 BFR-RT 后 RST 现象并测量肌肉力量的研究。采用随机效应模型对标准化均值差异（SMDs）进行元分析，以确定 BFR-RT 对 RST 的影响。综述本系统综述共纳入 8 项研究，其中 6 项参与了元分析。与 RT 相比，BFR-RT 没有增强 RST（SMD 0.27，95% 置信区间 [CI]：-0.02 至 0.56；P = .07）。结论根据荟萃分析，在相同负荷下，BFR-RT 与传统 RT 相比并不能增强 RST。因此，不建议在 RST 中使用 BFR。

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