研究表明:低频交流电(Zl)作用于人体时,细胞膜的作用相当于电容器介质,阻止电流通过;而较高频交流电(Zh)则可穿过细胞。因此认为:低频电阻的测定可反映出细胞外空间的大小;而高频电阻则反映细胞内外空间的大小(如总体液量).并进而推测:Zl/Zh 比值可作为细胞外空间相对大小的一个指数.通过应用某一频率的电流,现已证实人体总电阻与其总体液量高度相关;应用二种频率电流的研究表明;Zl/Zh 比值在显示细胞外体液与总体液时十分有用。本文报道四肢瘫痪患者的电阻测量结果.方法;受试者为健康人和四肢瘫痪者各20名(均为男性).健康组和四肢瘫痪的年龄、标准体重分 Studies have shown that when the low-frequency alternating current (Zl) acts on the human body, the cell membrane acts as a capacitor medium to prevent the passage of current while the higher-frequency alternating current (Zh) passes through the cell. Therefore, it is considered that the measurement of low frequency resistance can reflect the size of extracellular space, and the high frequency resistance reflects the size of space inside and outside the cell (such as the total volume of fluid) .Thus it is speculated that the ratio of Zl / Zh can be used as the relative size of extracellular space An index by using a current frequency, it has been confirmed that the total body resistance is highly correlated with its total fluid volume; studies using two frequency currents show that the Zl / Zh ratio is useful when displaying extracellular and total fluid. This article reports the results of resistance measurement in patients with quadriplegia.Methods Twenty healthy subjects and four limbs were paraplegic (all male) .The healthy group and the age of quadriplegia, standard body weight