Table 2.
Heart rate variability indices.
| HRV measure | Description |
|---|---|
| RMSSD | Root Mean Square of the Sum of Successive inter-beat interval (IBI) Differences |
| LF | Power density of the Low Frequency (0.04–0.15 Hz) component in the IBI spectrum |
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.