Figure 2.

Procedure to obtain curves between cuff pressure and arterial volume. A. Time series of occlusive cuff pressure determined after applying a digital filter (low-pass filter at 0.5 Hz) to raw cuff pressure. B. Cuff oscillation evoked by blood pressure pulse obtained after applying a digital filter (band-pass filter of 0.5 - 10 Hz) to raw cuff pressure. C. Amplitudes of cuff oscillations of all blood pressure pulses. D. Local slopes of curves between cuff pressure and arterial volume obtained from amplitudes of all pulse oscillations and changes in cuff pressure for pulse pressure. E. Average of local slopes of curve at all cuff pressure values. F. Pressure-volume curve calculated from numerical integration of averaged slopes.