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为防止高原人体行军的过度疲劳，预防高原病，根据在原高原室内模拟实验结果，在海拔３７００、４３００、５２００ｍ高度上进行了野外沙石路上行军适宜负重量的研究。行军速度分别为５．０、３．５和２．５ｋｍ／ｈ，负重量都为１０．０、１５．０和２０．０ｋｇ，行军时间１５０ｍｉｎ。结果表明，在海拔３７００ｍ行军速度为５．０ｋｍ／ｈ时，８５％受试者不出现很累感和ＨＲ可恢复到安静水平的负重量分别为１４．４和１５．１ｋｇ；在海拔４３００ｍ行军速度为３．５ｋｍ／ｈ时，８５％受试者不出现很累感和ＨＲ可恢复到安静水平的负重量分别为１６．８和１６．０ｋｇ；在海拔５２００ｍ行军速度为２．５ｋｍ／ｈ时，８５％受试者不出现很累感和ＨＲ可恢复到安静水平的负重量分别为１４．３和１５．９ｋｇ。经平均计算，在海拔３７００～５２００ｍ高原上，移居者在常用行军速度条件下的适宜负重量都约为１５．０ｋｇ。
In order to prevent over-fatigue of the high-altitude human march and prevent altitude sickness, based on the results of indoor simulation experiment in the original plateau, the appropriate weight-bearing capacity of march on the wild gravel road was studied at the altitude of 3700, 4300 and 5200 m. March speed were 5.0,3.5 and 2.5km / h, respectively, the weight of 10.0,15.0 and 20.0kg, marching time 150min. The results showed that 85% of the subjects did not show a sense of tiredness and HR could recover to a resting level of 14.4 and 15.1kg respectively at a march of 5.0km / h at an altitude of 3700m; marching at an altitude of 4300m At 3.5 km / h, 85% of the subjects did not show a sense of tiredness and HR regains a quiet level of 16.8 and 16.0 kg respectively. At an altitude of 5200 m, the march speed was 2.5 km / h , 85% of the subjects did not show a sense of tiredness and HR was able to return to a resting level of negative weight were 14.3 and 15.9kg. On average, at an altitude of 3700 to 5200 m above sea level, the suitable weight of migrants at normal march speed is about 15.0 kg.