User's Manual

SE-1010 PC ECG User Manual Operation Instructions for Resting ECG
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6.6.5.1 Editing the HRV Data on the Analysis Screen
Figure 6-21 Analysis Screen of HRV
Designation Definition
Sampling time Set sampling time
Total Beat Total beat number during the measuring course
Heart Rate Heart rate
Average RR interval Average RR interval
Max RR interval Maximum RR interval
Min RR interval Minimum RR interval
Max/Min Ratio of Maximum RR interval to Minimum RR interval
SDNN Standard Deviation of Normal to Normal Intervals
RMSSD Root Mean Square Successive Difference
NN50
(the total beat number)
The number of duration difference that is more than 50ms
between the adjacent NN durations.
PNN50
(unit: per centum)
NN50 divide the total NN number