Figure 4.
Representative one hour Poincaré plots. Figures 4a) and 4c) show normal HRV patterns. Figures 4b) and 4d) show abnormal, complex HRV patterns
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.