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Table 1 Tremor parameters in normal subjects and in patients with Parkinson's disease

From: A telemedicine instrument for remote evaluation of tremor: design and initial applications in fatigue and patients with Parkinson's Disease

  fp
(Hz)
Ap
(g)
Ppf
(mV2)
Ptot
(mV2)
Plf
(mV2)
Phf
(mV2)
Controls (n = 10) 2.6 ± 1.5 0.0021 ± 0.0011 0.003 ± 0.003 0.022 ± 0.0068 0.007 ± 0.003 0.006 ± 0.004
Parkinson (n = 10) 5.4 ± 1.5 0.091 ± 0.0791 6.7 ± 9.5 42.1 ± 48.1 9.2 ± 14.0 24.6 ± 25.8
p < 0.01 < 0.01 < 0.001 < 0.001 <0.001 <0.001
Sensitivity (%) 100 100 100 100 100 100
Specificity (%) 80 100 100 100 100 100
AUC 0.895 1 1 1 1 1
  1. Values are presented as means ± SD. SD = standard deviation; fp = peak frequency; Ap = peak amplitude; Pfp power around the peak frequency; Ptot = total power; Plf = power in low frequency; Phf = power in high frequency; AUC = area under the receiver operating characteristic curve.