Oliva I, Ipser J, Kotíková K
Physiol Bohemoslov. 1976;25(1):81-6.
Evaluation of the pulse wave on five segments of the lower limb by means of Fourier's harmonic analysis showed that the following phenomena can be observed in resting (recumbent) healthy subjects: 1) Almost constant, marked accentuation of the amplitude of the second harmonic in every single spectrum. Tjis can evidently be attributed to the resonance properties of the arterial pathway, as a mechanical oscillating circuit; 2) Distinct dimunution of the amplitudes of further, higher harmonics; 3) When studying the reciprocal amplitude ratio in every single harmonic, from the proximal to the distal segment of the limb, we can observe striking relative augmentation of amplitude in a distal direction, as a manifestation of mounting impedance towards the periphery. This provides good conditions for the prevention of rebounds and of undesirable stationary waves.
通过傅里叶谐波分析对下肢五个节段的脉搏波进行评估表明，在静息（卧位）健康受试者中可观察到以下现象：1）在每个频谱中，二次谐波的振幅几乎持续且明显增强。这显然可归因于动脉路径作为一个机械振荡回路的共振特性；2）进一步的高次谐波振幅明显减小；3）在研究从肢体近端到远端每个谐波的振幅倒数比时，我们可以观察到振幅在向远端方向显著相对增大，这是外周阻抗增加的表现。这为防止反弹和不良驻波提供了良好条件。
