坡度对移居海拔3700m高原人体生理适宜负重量的影响  

THE EFFECT OF SLOPE ON OPTIMUM LOAD CARRIAGE IN SOJOURNERES AT ALTITUDE OF 3700m

作　　者：孙兴斌[1] 昝俊平[1] 马智[1] 南文考[1] 尹昭云[1] 

机构地区：[1]军事医学科学院卫生学环境医学研究所

出　　处：《高原医学杂志》1994年第4期1-3,共3页Journal of High Altitude Medicine

摘　　要：在海拔３７００ｍ高原上测量了１２名男性移居青年以４．０ｋｍ／ｈ速度，在不同坡度（０．５、１０和１５％）和不同负重量（体重的１、１４、２１、２８、３５和４２％）下模拟行走时的ＶＥ、ＨＲ和Ｅ的改变，并根据上述指标随负重增加而出现的非线性增加（拐点）分析了不同坡度条件下行走时的适宜负重，进而观察了坡度对适宜负重的影响。结果表明，适宜负重随坡度的增加而明显降低，关系式为ｙ（适宜负重ｋｇ）＝２０．５１０－１．３５１×（坡度％），相关系数为ｒ＝－０．９６５（Ｐ＜０．０１）．根据上式计算可得，坡度每增加３％，适宜负重降低约２０％（４．０ｋｇ）。该量变关系对估计在其它海拔高度上坡度与适宜负重下降值也有参考意义。he ventilation volume(VE),heart rate(HR)and energy expenditure(E)were determinedin 12 yong males at altitude of 3 700m while they walked with different backpack loads (1、14、21、28、35and 42%of body weight)at treadmill grades of 0、5、10 and 15%at 4.0km/h, The optimunload carriage of different slope were analysed by no-line increase of VE、HRand Ewith increase ofIoad The resultes showed that the optimum load carriage was negatively correlatede with slope(r=-0. 965,P<0.01).The regression equation was y=20.510-1. 351x,wherey was optimum loadcarriage(kg);x was slope(%).According to this equatsion the optimum load carriage was re-duced by 20%when the steep was 3%of treadmill.It may be usd to estimate the inagnitude ofre-duction in optimum load carriage of men at different slope and altitudes.

关 键 词：高原 适宜负重 坡度 心肺功能 能量消耗量 

分 类 号：R594.3[医药卫生—内科学]