Table 2.

HRV measurements for case 2

HRV metric	ECG	Our approach	AMPD
SDNN	86.3	87.5	204.8
SDANN*	45.9	53.6	172.2
pNN50	18.7	24.2	63.3
RMSSD	54.6	62.7	265.9
SDNNi**	67.4	65	103.5
average HR	68.9	69	68.1

*Standard deviation of the averages of NN intervals in all 5 min segments of the entire recording

**Mean of the standard deviations of all NN intervals for all 5 min segments of the entire recording