Liu Haiyang, Jiang Lizhu, Wang Jian
Department of Physical Education, Ningbo University of Technology, Ningbo, China.
Ningde Vocational and Technical College, Ningde, China.
Front Physiol. 2024 Jul 11;15:1395283. doi: 10.3389/fphys.2024.1395283. eCollection 2024.
This meta-analysis aims to systematically evaluate the impact of blood flow restriction training (BFRT) on muscle activation and post-activation potentiation (PAP) in the upper limbs, to provide guidance for upper limb protocols aiming to enhance explosive strength and activation.
PubMed, CNKI, Web of Science, and EBSCO databases were queried to identify randomized controlled trials (RCTs) investigating the effects of upper limb BFRT on muscle activation and PAP. Inclusion and exclusion criteria were applied using the Cochrane bias risk tool. Literature quality assessment and statistical analysis were conducted using Revman 5.4 and Stata 17.0 software. Sensitivity analysis and funnel plots were utilized to assess result stability and publication bias.
A total of 31 articles involving 484 participants were included in the analysis. Meta-analysis results showed that upper limb BFRT significantly increased muscle iEMG values [ = 0.89, 95% (0.21, 1.58), = 0.01]. BFRT had a significant effect on upper limb explosive force [ = 0.73, 95% (0.41, 1.04), < 0.00001]. Subgroup analysis based on literature heterogeneity ( = 92%, 80%) showed that exhaustive BFRT significantly decreased upper limb iEMG [ = -0.67, 95% (-1.25, -0.09), = 0.01], with exercise modes including maximum output power of bench press [ = 1.87, 95% (0.22, 3.53), < 0.0001], exercise intensity of 40%-70% 1RM [ = 1.31, 95% (0.61, 2.01), < 0.0001], and pressure intensity of ≥60% AOP [ = 0.83, 95% (0.43, 1.23), < 0.0001] reaching maximum effects and statistical significance.
Upper limb BFRT can induce muscle activation and PAP. BFRT with 40%-70% 1RM and ≥60% AOP in the upper limbs is more likely to promote PAP.
http://inplasy.com, identifier INPLASY202430008.
本荟萃分析旨在系统评估血流限制训练（BFRT）对上肢肌肉激活和激活后增强效应（PAP）的影响，为旨在提高爆发力和激活能力的上肢训练方案提供指导。
检索PubMed、CNKI、Web of Science和EBSCO数据库，以识别研究上肢BFRT对肌肉激活和PAP影响的随机对照试验（RCT）。使用Cochrane偏倚风险工具应用纳入和排除标准。使用Revman 5.4和Stata 17.0软件进行文献质量评估和统计分析。利用敏感性分析和漏斗图评估结果稳定性和发表偏倚。
分析共纳入31篇文章，涉及484名参与者。荟萃分析结果显示，上肢BFRT显著增加肌肉表面肌电图（iEMG）值[标准化均数差（SMD）=0.89，95%置信区间（CI）（0.21，1.58），P = 0.01]。BFRT对上肢爆发力有显著影响[SMD = 0.73，95%CI（0.41，1.04），P < 0.00001]。基于文献异质性（I² = 92%，P < 0.00001）的亚组分析显示，力竭性BFRT显著降低上肢iEMG[SMD = -0.67，95%CI（-1.25，-0.09），P = 0.01]，其中运动模式包括卧推最大功率输出[SMD = 1.87，95%CI（0.22，3.53），P < 0.0001]、40%-70%1RM的运动强度[SMD = 1.31，95%CI（0.61，2.01），P < 0.0001]和≥60%AOP的压力强度[SMD = 0.83，95%CI（0.43，1.23），P < 0.0001]达到最大效果且具有统计学意义。
上肢BFRT可诱导肌肉激活和PAP。上肢采用40%-70%1RM和≥60%AOP的BFRT更有可能促进PAP。
