nsr2db/nsr031 : NN/RR = 0.974694 AVNN = 0.735324 SDNN = 0.116689 SDANN = 0.111733 SDNNIDX = 0.0446945 rMSSD = 0.0194922 pNN20 = 0.221055 pNN50 = 0.023738 TOT PWR = 0.014428 ULF PWR = 0.0112725 VLF PWR = 0.00152697 LF PWR = 0.00136744 HF PWR = 0.00026106 LF/HF = 5.23803