Validity of long-term electromyography in the quantification of tremor

Abstract

We previously developed a method of tremor quantification using long-term electromyography registration of antagonistic forearm muscles that is reliable, sensitive, and specific for pathologic tremors. The present study demonstrates that tremor occurrence as measured by this method correlates well with clinical parameters of tremor in idiopathic Parkinson's disease (PD) and essential tremor (ET). We conclude that the method is a valid and objective means of tremor quantification in PD and ET.