About SDNN

1 SDNN = 0.1 normalized HRV score (x10)

About normalized HRV score (x10)

Linear HRV normalization scale (x10)

More Heart Rate Variability conversions

• Convert SDNN to RMSSD
• Convert SDNN to ln(RMSSD) proxy score
• Convert SDNN to normalized HRV score (x10)