人体具有对抗高频率交流电传导的能力,被称为阻抗,即通过生物电阻抗分析(BIA)测得。从BIA得到的信号区分为电阻和电抗两种。电阻反映了体液的总量,而电抗可能与细胞外液有关,但对于电抗的临床价值尚不清楚。 BIA常被用作估价被测对象的营养状况或确定机体的组成成份。最近用于监测体重减少对体液的影响。损伤对人体阻抗的影响尚不清楚,也许这种影响在临床上是有意义的。在创伤和外科手术后,很典型地会出现液体潴留并伴有体液间隔的增大。另一些研究表明:在创伤后细胞的 The human body has the ability to combat high-frequency AC conduction, called impedance, as measured by bioelectrical impedance analysis (BIA). The signals received from the BIA are divided into two types: resistance and reactance. Resistance reflects the amount of body fluid, and reactance may be related to the extracellular fluid, but the clinical value of the reactance is not yet clear. BIA is often used to assess the nutritional status of the subject or to determine the composition of the body. Recently used to monitor weight loss on body fluids. The impact of injury on human impedance is unclear, and perhaps the impact is clinically significant. After trauma and surgery, fluid retention typically accompanies fluid enlargement. Other studies show that: after trauma cells