Physiology and clinical implications of variability of cardiovascular parameters with focus on heart rate and blood pressure.

@article{Malliani1994PhysiologyAC,
  title={Physiology and clinical implications of variability of cardiovascular parameters with focus on heart rate and blood pressure.},
  author={Alberto Malliani and Massimo Pagani and F. Lombardi},
  journal={The American journal of cardiology},
  year={1994},
  volume={73 10},
  pages={3C-9C}
}
Power spectral analysis of heart period (R-R) and arterial pressure short-term variability reveals the existence of two rhythmic oscillations: a high frequency (HF) component corresponding to respiratory activity (around 0.25 Hz) and a low frequency (LF) component corresponding to vasomotor waves (around 0.10 Hz). Further, a very low frequency (VLF) component, with a center frequency around 0 Hz, can be identified. It is generally accepted that the power of the HF component of R-R variability… CONTINUE READING