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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.