nsrdb/19830 :
NN/RR    = 0.98848
AVNN     = 0.688764
SDNN     = 0.12854
SDANN    = 0.123496
SDNNIDX  = 0.0397421
rMSSD    = 0.0225905
pNN20    = 0.262925
pNN50    = 0.0420628
TOT PWR  = 0.0182722
ULF PWR  = 0.0166449
VLF PWR  = 0.00094437
LF PWR   = 0.000486978
HF PWR   = 0.000195946
LF/HF    = 2.48527