Some effects of high altitude on man.
Some effects of high altitude on man.
复制标题
高海拔对人的一些影响。
DOI:
10.1016/s0140-6736(56)90148-9
复制
发表时间:
1956
期刊:
影响因子:
168.9
通讯作者:
M. Ward
中科院分区:
文献类型:
--
作者:
L. Pugh;M. Ward
THE 1951 Mt. Everest Reconnaissance Expedition, the 1952 Cho Oyu Expedition, and the 1953 Everest Expedition form a closely linked series. They provided unusual opportunities for observing the effects of altitude on men taking part in successive expeditions, as well as the modifying influence of factors such as improved acclimatisation and nutrition and the use of oxygen equipment. The early part of the three expeditions was much the same. T he first seventeen days were spent marching 140-160 miles through the Himalayan foot-hills at heights ranging from 4,000 to 12,000 ft., after which a main base camp was established at 12,000-13,000 ft. T he next two and a half months were spent mainly at heights between 18,000 and 22,000 ft.; but, whereas the 1951 and 1952 expeditions went straight to 18,000 ft. and did not come down again for several weeks, the Everest party devoted nearly a month to preliminary acclimatisation, making several short visits to 18,000 ft. and returning in the intervals to 13,000 ft. to rest. This phase of the Everest 1953 expedition was followed by a month spent at 18,000-22,500 ft. establishing camps and transporting stores up the Khumbu glacier. T he final phase on the Lhotse face and South Col (26,000 ft.), including the ascent to. the summit (29,002 ft.) lasted about fourteen days. T he 1951 and 1952 expeditions did not go above 23,000 ft. The Everest party had considerably more experience of high altitude than had the 1951 and 1952 parties, which included a high proportion of'first-timers'. O f the twelve members of the Everest team three had taken part in both previous expeditions and three others in one of them; and four of the remaining six had previous Himalayan experience.