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我们在1976年随同45名男青年从平原某地(海拔600公尺)到海拔5000公尺某地参加施工劳动。他们平素健康,年龄18—21岁,进高原前都经过详细体格检查,X线检查,静息心电图,二级梯双倍运动试验。脑电阻图,血常规及红细胞压积等检查,都未发现异常,也无慢性呼吸系病史。在十个月内,共作了六次这样的检查。第一次在平原,第二次初进高原(海拔280.0公尺)一周内。在此处适应二个半月向更高海拔地区行进,途经海拔3000公尺某地休息一周时,作了第三次检查。到达海拔5000公尺地区三天内,二个月和四个月后,又分别作了复查。除第四次中有一名青年因病未参加外,其它各次全组45人都参加。静息状态下仰卧位描记心电图,采用常规12个导联。有的加作V_3R_0采用国产XQ—1型热笔式心电图机,定准电压1毫伏=1O毫米。
In 1976, we joined 45 young men from somewhere in the plain (600 meters above sea level) to work somewhere 5,000 meters above sea level. They are generally healthy, aged 18-21 years old, before going to the plateau have been detailed physical examination, X-ray examination, resting ECG, double ladder double exercise test. EEG, blood and hematocrit and other tests, were found no abnormalities, there is no history of chronic respiratory disease. In 10 months, a total of six such inspections were made. The first time in the plain, the second time into the plateau (280.0 meters above sea level) within a week. Here to adapt to two and a half months to higher altitude areas, passing 3000 meters above sea level to rest for a week, made a third inspection. Arrived at an altitude of 5000 meters within three days, two months and four months later, respectively, made a review. In addition to the fourth in a youth did not participate in the disease, all other groups of 45 people to participate. Resting supine position tracing ECG, using conventional 12 lead. Some plus for V_3R_0 using domestic XQ-1 hot pen-type electrocardiogram machine, the quasi-voltage 1 millivolt = 1O mm.