Repeated-Sprint Training in Hypoxia Induced by Voluntary Hypoventilation at Low Lung Volume: A Meta-analysis.

IF 4.1 2区医学 Q1 SPORT SCIENCES

Sports Medicine - Open Pub Date : 2025-05-16 DOI:10.1186/s40798-025-00853-6

Camille Précart, Janne Bouten, Xavier Woorons, Charly Fornasier-Santos, Grégoire P Millet, Franck Brocherie

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Abstract

Background: Repeated-sprint training in hypoxia (RSH) induced through voluntary hypoventilation at low lung volume (RSH-VHL) may represent a low-cost alternative to systemic hypoxia. This meta-analysis aimed to systematically assess the effects of RSH-VHL training interventions on sea-level physical performance compared to similar repeated-sprint training with normal breathing (RSN).

Methods: The PubMed/MEDLINE, SportDiscus^®, ProQuest, and Web of Science online databases were examined from inception to February 2025 for original studies investigating the changes in physical performance following RSH-VHL and RSN. Only trained participants were included. Standardized mean difference (SMD) was determined for repeated-sprint ability related variables [i.e., best and mean performance (RSA_best and RSA_mean), sprint decrement score (S_dec)] and maximal blood lactate concentration ([La]_max). PEDro scale and Begg & Mazumbar test were used to assessed risk of bias.

Results: From the 776 studies identified through systematic search, 10 studies including a total of 199 individuals (157 males and 42 females) were eligible for meta-analysis. While no effect was observed for RSA_best (SMD = 0.038; 95%CI - 0.252-0.328; P = 0.798) and RSA_mean (SMD = 0.276; 95%CI - 0.018-0.570; P = 0.066), moderate significant effects were observed for S_dec (SMD = 0.603; 95%CI 0.180-1.025; P = 0.005) and [La]_max (SMD = 0.611; 95%CI 0.223-0.999; P = 0.002) favoring RSH-VHL vs. RSN.

Conclusion: Repeated-sprint training in hypoxia induced by voluntary hypoventilation at low lung volume provides putative gains in fatigue resistance during repeated sprints. Higher maximal blood lactate concentration suggests greater glycolytic contribution during RSH-VHL compared to RSN. Mechanisms underlying these effects are currently unclear and have yet to be identified.

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低肺容量自发性低通气所致缺氧的重复冲刺训练：一项荟萃分析。

背景：在低肺容量（RSH- vhl）自发性低通气诱导的缺氧（RSH）中重复短跑训练可能是一种低成本的全身缺氧替代方法。本荟萃分析旨在系统评估RSH-VHL训练干预措施与类似的正常呼吸重复冲刺训练（RSN）相比对海平面物理性能的影响。方法：对PubMed/MEDLINE、SportDiscus®、ProQuest和Web of Science在线数据库从成立到2025年2月的原始研究进行检查，调查RSH-VHL和RSN后身体表现的变化。只包括受过训练的参与者。测定重复冲刺能力相关变量（即最佳表现和平均表现（RSAbest和RSAmean）、冲刺减量评分（Sdec））和最大血乳酸浓度（[La]max）的标准化平均差（SMD）。采用PEDro量表和Begg & Mazumbar检验评估偏倚风险。结果：从通过系统检索确定的776项研究中，有10项研究共纳入199人（157名男性和42名女性），符合meta分析的条件。而对RSAbest无影响(SMD = 0.038；95%ci - 0.252-0.328；P = 0.798)和RSAmean (SMD = 0.276；95%ci - 0.018-0.570；P = 0.066)，对Sdec有中度显著影响(SMD = 0.603；95%可信区间0.180 - -1.025;P = 0.005)和[La]max (SMD = 0.611；95%可信区间0.223 - -0.999;P = 0.002)， RSH-VHL优于RSN。结论：在低肺容量自发性低通气诱导的缺氧条件下进行重复冲刺训练，可以在重复冲刺过程中获得抗疲劳能力。与RSN相比，较高的最大血乳酸浓度表明RSH-VHL期间糖酵解作用更大。这些影响的机制目前尚不清楚，也尚未确定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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