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对生长于低海拔地区的１１名男性健康青年志愿者，训练前、后于低压舱内进行３００ｍ、３５００ｍ、４５００ｍ的自身对比人体实验研究．结果发现高原劳动能力下降是由于乳酸性和非乳酸性氧债增高；表明心肌有早期轻度损害的Ｍｂ和ＣＫ显著增加，以及心电ＱＲＳ波和Ｔ波出现亚临床征候；肌球蛋白和肌动蛋白合成赶不上分解，与高原劳动能力下降呈现负相关，并有显著的统计学意义，采用复合锻炼４周后，在３５００ｍ高度劳动能力接近于平原水平，４５００ｍ则可恢复至未训练时的３５００ｍ劳动强度，但较平原劳动仍偏低１２．１２％。
Eleven male healthy young volunteers, who grew up in the low altitude area, conducted self-contrast human body experiments of 300m, 3500m and 4500m before and after training in the low-pressure cabin. The results showed that the decline in labor capacity at plateau was due to the increase in lactic acid and non-lactic acid oxygen debt, a significant increase in Mb and CK with early mild myocardial damage, subclinical signs of ECG QRS and T wave, myoglobin and muscle Kinetic protein synthesis can not keep up the decomposition, with the decline of working capacity of the plateau showed a negative correlation, and has significant statistical significance, after 4 weeks of compound exercise, at 3500m high level of workforce close to the level of the plain, 4500m can be restored to untrained 3500m Labor intensity, but still lower than the average of 12.12%.