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Study on High Altitude Attenuation at Nepal Himalaya Khumbu Area : Trekking Tour around Mt. Everest Area.

机译：尼泊尔喜马拉雅山昆布地区高空衰减研究：山顶徒步旅行。珠穆朗玛峰地区。

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From December 26, 1995 to January 9, 1996, we went Nepal Khumbu area to investigate high altitude attenuation. I report on a result of academic investigation, and how to prevent mountain sickness from this result. Average of Sp0_2 was 96.7 0n 1, 300m above sea level. But Sp0_2 was decreasing in spite of gain height and Sp0_2 was 76.2-1073767632n 4, 430m above sea level. But SpO_2 became 91% by a going down in 3, 900m. The tidal volume increased significantly from 10.5 l/min in 1, 300m above sea level to 18.4 l/min in 4.430m above the sea. The lowest value of Sp0_2 became 65-0x1b2380b6cb1ap-147fter breath holding test in 4, 430m above the sea. Breath holding time was shortened from 37.5 second in 1, 300m from the sea to 18.6 second in 4, 460m from the sea. In a high altitude of 4, 460m, breath holding time did not lengthen after 10 minutes oxygen inhalation. Breath holding time after oxygen inhalation shortened in those who increased ventilation volume insufficiently in a high altitude. This result suggested that low dose oxygen inhalation improve the hypoxic ventilatory response and also improve ventilatory function in high altitude. Low dose oxygen inhalation might be a useful way to prevent mountain sickness.
机译：从1995年12月26日至1996年1月9日，我们前往尼泊尔昆布地区调查高空衰减。我报告了一项学术调查的结果，以及如何根据该结果预防山区疾病。 Sp0_2的平均值为96.7 0n 1，海拔300m。但是，尽管增益高度增加，Sp0_2仍在下降，而Sp0_2在海拔430m处为76.2-1073767632n 4。但是SpO_2在3,900m的下降中变成91％。潮气量从海拔1,300m的10.5 l / min显着增加到海拔4.430m的18.4 l / min。 Sp0_2的最低值在海拔430m的4处达到65-0x1b2380b6cb1ap-147fter屏气测试。屏气时间从海上300 m的17.5秒缩短到海上460 m的4的18.6秒。在4、460m的高空，吸氧10分钟后呼吸时间没有延长。在高海拔地区通风量不足的人，吸氧后的屏气时间会缩短。该结果表明，低剂量氧气吸入改善了低氧通气反应，并且还改善了高海拔地区的通气功能。低剂量氧气吸入可能是预防高山病的有用方法。

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    竜 崇正; RYU Munemasa;

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