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INTRODUCTION OF BIOMEDICAL SIGNAL
ELECTROCARDIOGRAM PRESSURE MISURES
• •
R-R INTERVALL SAP-DAP
Sphygmomanometer CAP
Artery
Stethoscope
DATABASE A
DATABASE A
DESCRIPTION
EXPERIMENTAL PROTOCOL
61 Healthy subjects
(37 female, 24 male,
Mental Arithmetics
Head-up tilt Recovery
17.5 2.4 years) Rest (MA)
(HUT) (R1)
(R) 6 min
8 min 10 min
15 min
SIGNAL ACQUISITION
Extration time series:
1. ECG
2. Arterial Pressure STATISTICAL
ANALYSIS
SERIES VISUALIZATION
ORGINAL SIGNALS RR SERIES
VS SAP SERIES
DETRENDED SIGNALS DAP SERIES
PMA VISUALIZATION
AND
STATIC ANALYSIS
STATISTICAL MOMENTS
= +
JOINT STATISTICAL MOMENTS
BIVARIATE MODEL:
CROSS
CORRELATION
MODEL
CROSS CORRELATION MODEL
Predicted Variable: PMA Y RESULTS
Predictor Variable: RR interval X RESULTS
VISUALIZATION
CROSS
REGRESSION
MODEL
(X MODEL)
CROSS-REGRESSION MODEL (X MODEL)
Predicted Variable: RR interval Y
Predictor Variable: PMA X