FIGURE 4.
Physiological signals: BP waves with systolic (red line, BPsys) and diastolic (blue line, BPdia) values (A); movement of the thorax due to respiration (B); HR values (C); and peaks of the ECG signal (D).
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.