Placeholder chapter page. Sections are produced by the book-skills pipeline.
Sections
- 30.1 PPG physics and the pulse waveform
- 30.2 AFib screening on consumer wearables (Apple/Fitbit heart studies)
- 30.3 SpO2, heart rate, and HRV
- 30.4 Cuffless and continuous blood-pressure estimation
- 30.5 Sleep staging and stress from PPG
- 30.6 Motion robustness and signal-quality gating
- 30.7 Fairness across skin tones and the calibration problem
Lab 30
build a PPG heart-rate/AFib pipeline with signal-quality gating; audit performance across subgroups.