M. Pagani

TL;DR: The index a is proposed as a quantitative indicator of the changes in the gain of baroreceptor mechanisms occurring with physical training in mild hypertension and during a 24-hour period in ambulatory subjects.

TL;DR: Important new information has been generated by coupling the analysis of heart rate variability (HRV) to the concept of sympatho-vagal balance, which explains part of the variability of RR interval.

TL;DR: The proposed approach based on quantification of complexity allows a full characterization of heart period dynamics and the identification of experimental conditions known to differently perturb cardiovascular regulation.

TL;DR: Spectral analysis of simultaneous R-R and AP variabilities quantified these oscillations that were also evaluated in units normalized by total power to focus on the balance of these two major components.

TL;DR: A parametric method for autoregressive (AR) auto- and cross-spectral analysis is presented for the contemporaneous processing of heart rate and arterial blood pressure variability signals and the introduced bivariate spectral analysis provides quantitative and objective means which are useful to measure the role played by the neural controlling systems on the cardiovascular signals under different pathophysiological conditions.