| Summary: | 碩士 === 國立體育大學 === 競技與教練科學研究所 === 106 === Purpose: The am of the research is to investigate the effects of acute one-day high-intenstity-interval training (HIIT) with cooling and hyperorxia application recovery applications on Anaerobic Threshold and Heart rate Variablity. Methods: Eight healthy male participants (25.5±3.3 yr、173±7.5 cm、75±12.1 kg) completed two HIIT session with cooling (-120〜140°C Cryochamber) or hyperoxia (80% O2) application in different day. Before and after the HIIT, incremental running test was applied to evaluate the endurance performance of subjects.Capillary blood lactate (La), heart rate (HR), blood ammonia (NH3), were measured during HIIT training and incremental running test. Paired-t test was used to analysis parameters. The statistical significance was set as α = .05. Results: The aerobic threshold speed became higher after both recovery applications (cooling: +0.4 m/s, hyperoxia: +0.1 m/s, p > .05). Anaerobic threshold only increased after hyperoxia application (p > .05). In psot test, blood lactate concentration showed lower at low speed (2.5 m/s, 3.0 m/s, 3.5m/s, p > .05) and high at high speed (4.0 m/s, 4.5 m/s, 5.0 m/s, p > .05). After HIIT, blood lactate concentration was lower with hyperoxia application during the recovery period (p > .05). Heart rate showed significantly lower with hyperoxia than with cooling application at 3rd and 6th minutes during the recovery period (p < .05). Blood ammonia cleanreance was -0.5 µmol/l with cooling and -26 µmol/l with hyperocia (p<.05). Conclusion: One-day HIIT with cooling and hyperoxia showed no significant improvement in both aerobic and anerobic threshold. After HIIT, hyperoxia showed better recovery in heart rate (p < .05) and blood ammonia (p < .05).
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