Bauer R D, Busse R, Schabert A
Pflugers Arch. 1985 Mar;403(3):308-11. doi: 10.1007/BF00583605.
In order to investigate the dynamic behaviour of the peripheral vessels of the arterial system, simultaneous pressure-flow measurements were made in the deep femoral artery of the rabbit at the same site. The input impedance calculated from the recorded pulses was regarded as representing the peripheral vascular termination in skeletal muscle and was expressed in terms of modulus and phase. The modulus decreases monotonously with increasing frequency while the phase angle is about -45 degrees in the low frequency range and becomes less negative with increasing frequency. This behaviour can be simulated by a model in which the inert mass of the pulsating blood, the elastic compliance of the blood vessels, and the frictional resistance to blood flow are taken into account. An essential result is that the model is provided with a considerable degree of elastic compliance, which means that the peripheral vessels as a whole possess an important compliance and do not behave like pure frictional resistances.
为了研究动脉系统外周血管的动态行为，在兔股深动脉的同一部位同时进行了压力-流量测量。根据记录的脉搏计算出的输入阻抗被视为代表骨骼肌中的外周血管终端，并以模量和相位表示。模量随频率增加而单调下降，而相位角在低频范围内约为-45度，并随频率增加而变得负值减小。这种行为可以通过一个模型来模拟，该模型考虑了脉动血液的惯性质量、血管的弹性顺应性以及对血流的摩擦阻力。一个重要的结果是，该模型具有相当程度的弹性顺应性，这意味着外周血管整体具有重要的顺应性，而不是表现得像纯摩擦阻力。
