Figure 9. Acceleration plethysmogram (APG) signal and its pulse train. The S, A, and B areas of the pulse train correspond to the b, c, and d wave indices, respectively.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.