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Purpose <p>To investigate the effects of different work: rest (W: R) ratios on physiological, neuromuscular, and rating of perceived exertion (RPE) responses during taekwondo-specific high-intensity interval training (HIIT).</p> Methods <p>Thirteen moderate-trained taekwondo athletes completed a familiarization session and two HIIT trials which consisted of three rounds of 2&#xa0;min roundhouse kicks with 1&#xa0;min of rest in between. The W: R ratio protocols were: 1:0.5 (10s:5s) and 1:5 (10s:50s). Heart rate (HR) and oxygen uptake (VO<sub>2</sub>) were continuously determined throughout the trials. Blood lactate concentration ([La<sup>−</sup>]), countermovement jump (CMJ), and RPE were recorded before trials and after each round. The estimated contribution of the energy systems was calculated for each round.</p> Results <p>In the two W: R ratio protocols, HR, [La<sup>−</sup>], and RPE progressively increased across rounds (<i>P</i> &lt; 0.001, 0.700 &lt;<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:{\:}_{\text{p}}^{2}\:\)</EquationSource> </InlineEquation> &lt; 0.868). The relative aerobic energy contribution significantly increased ( <i>P</i> &lt; 0.001, <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\:{}_{p}^{2}\)</EquationSource> </InlineEquation> = 0.488), while the relative glycolytic energy contribution significantly decreased in round 3 (<i>P</i> &lt; 0.001,<InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(\:{}_{p}^{2}\)</EquationSource> </InlineEquation> = 0.536). Compared to 1:0.5&#xa0;W: R ratio, the 1:5&#xa0;W: R ratio induced lower HR, VO<sub>2</sub>, and RPE (<i>P</i> &lt; 0.001, 0.230 &lt;<InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(\:{\:}_{\text{p}}^{2}\:\)</EquationSource> </InlineEquation> &lt; 0.659).</p> Conclusion <p>Physiological and RPE responses progressively increased with round during taekwondo-specific HIIT. The 1:0.5&#xa0;W: R ratio induced greater physiological responses and RPE than 1:5&#xa0;W: R ratio, thereby providing critical insights for the optimization of taekwondo-specific HIIT program design.</p>

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Effects of two work-to-rest ratios on physiological, neuromuscular, and RPE responses during taekwondo-specific HIIT

  • 期刊论文

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  • 发表日期：

    2025年12月30日

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  • Hang Zheng,
  • Guochao Zhang,
  • Yuming Zhong,
  • Mingyue Yin,
  • Zhengqiu Gu,
  • Xinxin Wang,
  • Xinyu Zeng,
  • George P. Nassis,
  • Yongming Li

摘要

Purpose

To investigate the effects of different work: rest (W: R) ratios on physiological, neuromuscular, and rating of perceived exertion (RPE) responses during taekwondo-specific high-intensity interval training (HIIT).

Methods

Thirteen moderate-trained taekwondo athletes completed a familiarization session and two HIIT trials which consisted of three rounds of 2 min roundhouse kicks with 1 min of rest in between. The W: R ratio protocols were: 1:0.5 (10s:5s) and 1:5 (10s:50s). Heart rate (HR) and oxygen uptake (VO2) were continuously determined throughout the trials. Blood lactate concentration ([La−]), countermovement jump (CMJ), and RPE were recorded before trials and after each round. The estimated contribution of the energy systems was calculated for each round.

Results

In the two W: R ratio protocols, HR, [La−], and RPE progressively increased across rounds (P < 0.001, 0.700 < \(\:{\:}_{\text{p}}^{2}\:\) < 0.868). The relative aerobic energy contribution significantly increased ( P < 0.001, \(\:{}_{p}^{2}\) = 0.488), while the relative glycolytic energy contribution significantly decreased in round 3 (P < 0.001, \(\:{}_{p}^{2}\) = 0.536). Compared to 1:0.5 W: R ratio, the 1:5 W: R ratio induced lower HR, VO2, and RPE (P < 0.001, 0.230 < \(\:{\:}_{\text{p}}^{2}\:\) < 0.659).

Conclusion

Physiological and RPE responses progressively increased with round during taekwondo-specific HIIT. The 1:0.5 W: R ratio induced greater physiological responses and RPE than 1:5 W: R ratio, thereby providing critical insights for the optimization of taekwondo-specific HIIT program design.