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<p>This study sought to establish an optimal inspiratory warm-up (IWU) protocol for elite 400-meter athletes. It addresses the existing gap in sprint-specific research and provides practical applications for coaches and athletes aiming to optimize sprint running performance. Across four weeks, 13 elite male runners (age: 22.7 ± 2, personal best: 50.78 ± 0.65&#xa0;s) performed four 400-meter time trials after different warm-up protocols in a randomized order. Assessments of various respiratory variables [maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), peak inspiratory flow rate (PIFR), inhaled volume (IV)] and selected physiological indices [heart rate (HR) and blood lactate (bLa)] were performed before and after the time trials. Analysis of variance with a significance level of <i>p</i> &lt; 0.05 was applied. Incorporating IWU into a standard running warm-up resulted in a ~ 0.38-second faster 400-meter time trial in elite male sprinters (<i>p</i> &lt; 0.001). The most effective IWU protocols, associated with the fastest run splits, consist of two sets of 30 dynamic inspiratory maneuvers performed with pressure threshold loading at 40% or 60% of MIP resistance. These protocols exhibited a positive influence on selected respiratory indices and significantly lowered post-run lactate concentrations compared to the athletic warm-up and sham protocol. IWU with 40% MIP resistance was associated with lower post-run HR compared to other protocols. IWU using pressure threshold loading at either 40% or 60% of MIP can be beneficial for elite male sprinters. While 40% MIP appears to support faster recovery, a higher intensity at 60% MIP shows greater effectiveness in enhancing 400-meter sprint performance. Future research should explore IWU applications across broader populations and conditions, including female athletes, various hypoxic environments, and temperature variations.</p>

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Inspiratory muscle warm up improves 400 m performance in elite male runners

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月7日

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  • Yasemin Ari Yilmaz,
  • Mehmet Ismail Tosun,
  • Erkan Demirkan,
  • Sema Can,
  • Ali Özkan,
  • Mustafa Arici,
  • Mehmet Kutlu,
  • Mert Ayranci,
  • Milan Marković,
  • İrem Eker Arici,
  • Mustafa Onur Güneş,
  • Tomasz Kowalski

摘要

This study sought to establish an optimal inspiratory warm-up (IWU) protocol for elite 400-meter athletes. It addresses the existing gap in sprint-specific research and provides practical applications for coaches and athletes aiming to optimize sprint running performance. Across four weeks, 13 elite male runners (age: 22.7 ± 2, personal best: 50.78 ± 0.65 s) performed four 400-meter time trials after different warm-up protocols in a randomized order. Assessments of various respiratory variables [maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), peak inspiratory flow rate (PIFR), inhaled volume (IV)] and selected physiological indices [heart rate (HR) and blood lactate (bLa)] were performed before and after the time trials. Analysis of variance with a significance level of p < 0.05 was applied. Incorporating IWU into a standard running warm-up resulted in a ~ 0.38-second faster 400-meter time trial in elite male sprinters (p < 0.001). The most effective IWU protocols, associated with the fastest run splits, consist of two sets of 30 dynamic inspiratory maneuvers performed with pressure threshold loading at 40% or 60% of MIP resistance. These protocols exhibited a positive influence on selected respiratory indices and significantly lowered post-run lactate concentrations compared to the athletic warm-up and sham protocol. IWU with 40% MIP resistance was associated with lower post-run HR compared to other protocols. IWU using pressure threshold loading at either 40% or 60% of MIP can be beneficial for elite male sprinters. While 40% MIP appears to support faster recovery, a higher intensity at 60% MIP shows greater effectiveness in enhancing 400-meter sprint performance. Future research should explore IWU applications across broader populations and conditions, including female athletes, various hypoxic environments, and temperature variations.