nsrdb/19088 :
NN/RR    = 0.989961
AVNN     = 0.731503
SDNN     = 0.119062
SDANN    = 0.108831
SDNNIDX  = 0.0522052
rMSSD    = 0.0324499
pNN20    = 0.464538
pNN50    = 0.111623
TOT PWR  = 0.0155842
ULF PWR  = 0.0123955
VLF PWR  = 0.00166107
LF PWR   = 0.00101676
HF PWR   = 0.000510859
LF/HF    = 1.99029