Key result
Blood flow restriction resistance training did not enhance remote strength transfer compared with traditional resistance training.
Why the study?
This study aimed to examine the effect of blood flow restriction resistance training on strength gains in untrained limbs, known as remote strength transfer.
Does blood flow restriction resistance training enhance remote strength transfer compared to traditional resistance training?
Meta-Analysis
Does blood flow restriction resistance training enhance remote strength transfer compared to traditional resistance training?
Blood flow restriction resistance training does not enhance remote strength transfer compared to traditional resistance training at the same load.
Answers are grounded in this paper and cite their sources.
BFR-RT offers no remote strength transfer benefit over traditional RT; meta-analysis confirms equivalent efficacy without added value.
OBJECTIVES: This 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 SURVEY: A search for studies was performed using six databases (PubMed/MEDLINE, Scopus, Web of Science, Cochrane Library, SPORTDiscus, and ScienceDirect) up to February 2024. METHODOLOGY: Studies 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. SYNTHESIS: Eight 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. CONCLUSIONS: BFR-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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Rodríguez et al. (2024) conducted a meta-analysis in Remote strength transfer. Blood flow restriction resistance training (BFR-RT) vs. Traditional resistance training (RT) at the same load was evaluated on Remote strength transfer (strength gains in untrained limbs) (SMD 0.27, 95% CI -0.02 to 0.56, p=0.07). Blood flow restriction resistance training did not enhance remote strength transfer compared with traditional resistance training.
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