About SDNN

1 SDNN = 0.05 ln(RMSSD) proxy score

About ln(RMSSD) proxy score

Proxy normalization from RMSSD to a score scale

More Heart Rate Variability conversions

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