Trial reportEuropean journal of sport science2025
Effect of High-Intensity Interval Training With Varying Work-to-Rest Ratios on Specific Physical Fitness in Adolescent Taekwondo Athletes.
Trial report in European journal of sport science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- The effects of high-intensity interval training on physical fitness and physiological responses in taekwondo athletes: a systematic review and meta-analysis.European journal of applied physiology · 2026Pooled it
- Effect of high-intensity interval training on aerobic capacity, physical fitness, and body composition in martial arts athletes: a systematic review and meta-analysis of randomized controlled trials.Frontiers in nutrition · 2026Pooled it
- Effects of high-intensity interval training on physical fitness in trained adolescent athletes: a systematic review and meta-analysis.Frontiers in physiology · 2026Pooled it
- Effect of High-Intensity Interval Training With Varying Work-to-Rest Ratios on Specific Physical Fitness in Adolescent Taekwondo Athletes.European journal of sport science · 2025Trial
- Effect of different work-to-rest ratios during simulated taekwondo combat on blood lactate, heart rate and perceptual responses in elite taekwondo athletes: a randomized crossover trial.BMC sports science, medicine & rehabilitation · 2026Article
- Muay Thai-specific high-intensity interval training enhances anaerobic power in elite fighters.Frontiers in sports and active living · 2026Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study investigated the effects of high-intensity interval training (HIIT) with different work-to-rest ratios during the same training duration on the specific physical fitness of Chinese adolescent taekwondo athletes (N = 30, 16-20 years, 18 males and 12 females, and provincial champion/runner-up or national top 6). Athletes were randomly allocated to HIIT-20S (20 s work: 10 s rest), HIIT-30S (30 s work: 10 s rest), and a control group (2 min actual combat competitive: 1 min rest). An 8-week intervention (24 sessions, 30 min/session). Specific physical fitness was assessed using the progressive specific taekwondo test, frequency speed of kick test, 10-s high roundhouse kick test, 60-s double chop kick test, heart rate recovery (HRR), 1 repetition maximum (1-RM) squat test, and improved Illinois agility test. Statistical significance was defined as p < 0.05. Compared with the HIIT-20S (1.96%) and control (0.47%) groups, the HIIT-30S group demonstrated a significantly greater improvement in VO2peak (4.72%). In the FSKT10S test, the HIIT-20S group performed better than the HIIT-30S group (2.24% vs. 1.34%), whereas the HIIT-30S group showed higher gains in FSKTtotal (5.09% vs. 2%) and a steeper decline in KDI (-21.7% vs. -12.1%). Similarly, the HIIT-20S group outperformed the HIIT-30S group in the 10S-HRK test (3.62% vs. 0.91%), whereas the HIIT-30S group outperformed the 60S-DCK test (3.45% vs. 1.91%). Improvements in agility favored the HIIT-20S group (-8.26% vs. HIIT-30S: -4.01%; control: -0.85%). Both HIIT groups showed enhanced heart rate recovery (HIIT-30S, 2.74% and HIIT-20S, 2.57%), although no significant differences were observed in lower limb maximal strength. These findings confirm the specificity of the work-to-rest ratio: HIIT-30S effectively enhances cardiorespiratory endurance and repeated kicking endurance, whereas HIIT-20S appears to be more beneficial for optimizing explosive strength, agility, kick speed, and frequency.
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