Cardiorespiratory adaptations to high-intensity interval training in young boxers: A randomized controlled study.
Medicine (Baltimore)Sep 18, 2026
Sena Cinarli, Betül Akyol, Fatih Karakurt et al.
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In 30 seconds
This randomized controlled trial examined the effects of a 4-week high-intensity interval training (HIIT) regimen on cardiorespiratory fitness in 16 trained young boxers. The study found significant improvements in pulmonary function measures, including maximal voluntary ventilation, forced vital capacity, and forced expiratory volume in 1 second, with P values less than .01. However, the improvements may be influenced by the overall increased training volume.
Key findings
- Maximal voluntary ventilation improved significantly in the HIIT group (ηp2 = 0.817).
- Forced vital capacity (FVC) showed significant enhancement in the HIIT group (ηp2 = 0.618).
- Forced expiratory volume in 1 second (FEV1) increased significantly in the HIIT group (ηp2 = 0.283).
- Heart rate recovery improved significantly over time in both groups (P < .001).
Why it matters
Understanding the impact of HIIT on cardiorespiratory fitness can help optimize training regimens for athletes in combat sports, potentially enhancing performance and recovery.