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本实验观察了１２名男青年在海拔３８００ｍ高原进行体力活动时心率（ＨＲ）与氧耗量（Ｏ＿２）和氧脉搏（Ｏ＿２／ＨＲ）之间的关系，以及不问水平ＨＲ的恢复情况与劳累感的发生率，以探讨人体在该海拔高度上体力活动时的适宜心率。结果表明，ＨＲ为１１０～１３０ｂｅａｔｓ／ｍｉｎ时，Ｏ＿２／ＨＲ随ＨＲ增加而增加，ＨＲ为１４０ｂｅａｔｓ／ｍｉｎ时，Ｏ＿２／ＨＲ接近ＨＲ为１３０ｂｅａｔｓ／ｍｉｎ时的水平；ＨＲ为１５０～１６０ｂｅａｔｓ／ｍｉｎ时，ＶＯ＿２／ＨＲ则呈现减少，并且ＨＲ恢复较慢，很累感发生率高达８５％。综上结果，我们初步提出，人体在海拔３８００ｍ高原进行体力活动时的适宜ＨＲ为１３０～１４０ｂｅａｔｓ／ｍｉｎ，可作为劳动卫生限度的参考值。
The present study observed the relationship between heart rate (HR) and oxygen consumption (O 2) and oxygen pulse (O 2 / HR) in 12 young men at 3800 m above sea level, as well as the recovery and fatigue A sense of the incidence to explore the human body at the altitude of the physical activity of the appropriate heart rate. The results showed that when HR is 110 ~ 130beats / min, the O_2 / HR increases with the increase of HR. When HR is 140beats / min, the O_2 / HR is close to the HR of 130beats / min; when HR is 150 ~ 160beats / min, VO_2 / HR showed a decrease, and HR recovery is slow, very tired incidence of up to 85%. Based on the results, we initially proposed that the appropriate HR for human physical activity at an altitude of 3800m is 130 ~ 140beats / min, which can be used as a reference value for labor hygiene limit.