24 Hour continuous tremor quantification based on EMG recording
1989; Elsevier BV; Volume: 72; Issue: 2 Linguagem: Inglês
10.1016/0013-4694(89)90179-x
ISSN1872-6380
AutoresM. Bacher, E. Scholz, Hans-Christoph Diener,
Tópico(s)EEG and Brain-Computer Interfaces
ResumoA new method is described that allows continuous quantification of parkinsonian and essential tremor over a period of up to 24 h on the basis of surface EMG recording from antagonistic forearm muscles. Tremor extraction from EMG data and all other calculations are performed on a digital computer. The occurrence, intensity and frequency of tremor are calculated. The data evaluation is fully automatic, including quality control and elimination of artifacts. Since tremor changes considerably over a 24 h period, long-term quantification gives more reliable data to study diurnal variations and to control the effects of medical treatment on tremor. As an additional advantage tremor recording is not restricted to a laboratory environment. Tremor can be monitored under everyday conditions and in the presence of moderate voluntary EMG activity.
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