海拔高度下的肺活量、运动能力及血气与年龄的关系

Vital capacity, exercise performance, and blood gases at altitude as related to age.

作者信息

Dill D B, Hillyard S D, Miller J

出版信息

J Appl Physiol Respir Environ Exerc Physiol. 1980 Jan;48(1):6-9. doi: 10.1152/jappl.1980.48.1.6.

DOI:10.1152/jappl.1980.48.1.6

Abstract

Vital capacity (VC) rarely may decrease 35-60% in healthy mountain climbers associated with high-altitude pulmonary edema (HAPE). In the age range 58-71 yr, five of six men during a week or more on White Mt. in 1962 had decreases in VC from 20 to 32% without frank symptoms of HAPE, Dill, one of the five, had decreases in VC again on White Mt. in 1977 and 1978. Yet none of 11 young climbers on White Mt. studied by Hultgren (personal communication) had a significant decrease in VC. Dill's arterial O2 saturation at age 87 at 485 Torr was about 79% in rest and 74% when VO2 was 0.74 ml/min.kg. His aerobic capacity at age 87 yr was 18 ml/min.kg at 695 Torr and 15 at 485 Torr.

摘要

在患有高原肺水肿（HAPE）的健康登山者中，肺活量（VC）很少会降低35% - 60%。在1962年，年龄在58 - 71岁之间的六名男性中，有五名在怀特山停留一周或更长时间，其肺活量下降了20%至32%，但没有明显的高原肺水肿症状。这五人中的迪尔在1977年和1978年再次登上怀特山时肺活量又有所下降。然而，赫尔特格伦（个人交流）研究的11名登上怀特山的年轻登山者中，没有一人的肺活量有显著下降。迪尔87岁时，在485托（Torr）的环境下，静息时动脉血氧饱和度约为79%，当耗氧量为0.74毫升/分钟·千克时，血氧饱和度为74%。他87岁时的有氧能力在695托时为18毫升/分钟·千克，在485托时为15毫升/分钟·千克。