間欠的低酸素高炭酸ガス吸入が初心者フリーダイバーの息こらえ時間に及ぼす影響

概要

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The aim of this study was to investigate the effect of intermittent hypoxic and hypercapnic gas inhalation on the breath hold time (BHT). One novice breath hold diver (age: 25 years old, height: 172.5cm, weight: 63.8kg, vital capacity: 5.3L, history of breath hold diving: 1 year) participated in this study. The subject breathed hypoxic and hypercapnic gas (O2: 12%, CO2: 6%, N2: balance) 1 hour per day for 1 week. BHT was measured at 4 dofferent measuringsessions before and after intermittent gas inhalation: 1) 1 week before, 2) 1 day before, 3) 1 day after, 4) 1 week after. The subject performed BTH performance 5 times during each measuring session, and data was expressed as the mean of 3 times excluding the longest and the shortest time. Mean BHT was 3'10(1 week before),was 3'11(1 day before), was 3'23(1 day after), and was 3'21(1 week after), respectively. Although one subject's data, this study's result suggested that intermittent hypoxic and hypercapnic gas inhalation 1 hour per day for 1 week may promote the BHT of a novice breath hold diver.
2014-01-31