What is normalized HRV score (x10)?
Normalized HRV score (×10) is a scaled HRV metric that maps raw HRV values onto a standardized reference range, multiplied by 10 for resolution. It is used by consumer health platforms to present HRV data in a user-friendly numerical format.
What is RMSSD?
RMSSD (root mean square of successive differences) is the primary HRV metric reflecting short-term autonomic nervous system activity. It is the most widely used HRV measure in wearable fitness devices, sports science, and cardiac health monitoring.