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Exerc Sci > Volume 20(4); 2011 > Article
Exercise Science 2011;20(4): 461-474. doi: https://doi.org/10.15857/ksep.2011.20.4.461
3,000 m 상당고도의 저압․저산소 환경에서 4주간의 간헐적인 스프린트 훈련이 무산소성 에너지대사와 운동수행능력에 미치는 영향
함주호, 남상석, 박훈영, 선우섭
경희대학교
Effects of 4 weeks intermittent sprint training on anaerobic energy metabolites and performance in hypobaric hypoxic condition, equivalent to an altitude of 3,000 m.
ABSTRACT
The study was designed to investigate the effects of intermittent sprint training in hypobaric hypoxic condition, equivalent to an altitude of 3,000 m and sea level on anaerobic energy metabolism and performance. Fourteen college male students majoring sports volunteered to participate in this research. Running grade, speed, time, repetition time, and interval between running were 10 percent, 15-17 km/hr, 30 seconds, 10 times, 2 minutes respectively. Training period was 4 weeks. They took 8 weeks rest after first training (4 weeks) in 3,000 m simulated altitude and sea level. Also second training practiced 4 weeks in that order (a cross-over study). The results of this study were as follows. Weight and muscle mass were significantly decreased after 3,000 m simulated altitude training. CPK was not significantly changed after 3,000 m simulated altitude and sea level training. LDH was significantly decreased immediately after exercise and recovery 5 minutes after 3,000 m simulated altitude training. Oxygen transporting capacity of the blood was not significantly changed after 3,000m simulated altitude and sea level training. EPOC was significantly increased after 3,000 m simulated altitude and sea level training. Anaerobic power was significantly increased after 3,000 m simulated altitude training. Leg isokinetic muscular strength was significantly increased after sea level training. But it was significantly decreased after 3,000 m simulated altitude training. 100 m time trial was significantly decreased after 3,000 m simulated altitude training. But 400 m time trial was not significantly changed in two groups. We have demonstrated that weight, muscle mass and 100 m time trial was significantly changed by 4 weeks of intermittent sprint training in hypobaric hypoxic condition, equivalent to an altitude of 3,000 m, whereas the other physiological parameters was not significantly changed in two groups.
Key words: Hypobaric hypoxia, Cross-over study, Oxygen transporting capacity, EPOC, Anaerobic power, Performance
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