Table 1 Definitions of the selected features of pulse wave signals
From: Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
Features | Definitions |
|---|---|
AmAC | Amplitude between A peak and C peak |
AmAB | Amplitude between A peak and B peak |
TmBB | The time span between two successive A peaks |
TmCA | The timespan between C peak of the current heartbeat and A peak of the next heartbeat |
TmAC | The timespan between A peak and C peak of the same heartbeat |
Area 1 | Area of the systolic phase |
Area 2 | Area of the diastolic phase |
RSD | The ratio of systole TmAC to diastole TmCA |