Cited by 107Neurological disorders and treatmentsMotor Control and AdaptationMuscle activation and electromyography studies

Electromyographic differentiation of tremors

Milanov, Ivan·2001·Clinical Neurophysiology

Abstract

Objective The aim of this study was to explore the opportunity for differentiation of tremors on the basis of the electromyographic examination. Methods We report data from 525 patients with different types of tremor included in this study. Two hundred and twenty patients with essential tremor, 110 patients with Parkinson's disease, 24 patients with midbrain tremor, 22 patients with cerebellar tremor, 120 patients with enhanced physiological tremor due to anxiety, and 29 patients with psychogenic tremor participated in the study. A detailed neurological and electromyographic examination was performed. The tremor was studied in all limbs positions. Surface electromyographic recordings of the most involved body part were performed to all patients. Results According to the electromyographic examination all patients were divided to two groups: Patients with synchronous tremor and patients with alternating tremor in the antagonist muscles. The comparisons were performed only between the patients with tremor caused by different etiology within the group of synchronous or alternating tremor. The group of tremors with synchronous pattern included the patients with essential tremor type A (with synchronous activity), cerebellar, and enhanced physiological tremor. The group of tremors with alternating pattern included patients with Parkinsonian tremor, essential tremor type B (with alternating activity), rubral, and psychogenic tremors. Our results revealed that electromyographic examination of tremor pattern, frequency, amplitude, and burst duration is useful for tremor differentiation. Conclusion The electromyographic examination may serve as a tool for differentiation of tremors.

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Crossref · 10.1016/s1388-2457(01)00629-0

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  • None of these features alone are able to separate PD and ET due to overlaps in feature distribution.

    “However, due to overlaps in feature distribution, none of these features alone are able to separate the two tremors (Capildeo and Findley, 1984; Calzetti et al., 1987; Milanov, 2001).”
  • Many statistical features from kinetic signals of tremor, including tremor intensity, dominant frequency, bursting duration, shape factors, and tremor stability index, have been discovered to be statistically different between PD and ET.

    “Many statistical features from kinetic signals of tremor, including tremor intensity, dominant frequency, bursting duration (Milanov, 2001), shape factors (Deuschl et al., 1995), tremor stability index (Di Biase et al., 2017) etc., have been discovered to be statistically different between PD and ET.”
  • The arm-stretching posture was reported to be the most sensitive in tremor differentiation and has been performed in many published studies.

    “The posture involved in this session was reported to be the most sensitive in tremor differentiation (Ai et al., 2007) and has been performed in many published studies (Milanov, 2001).”

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Authors
Milanov, I.
Corresponding author
Milanov, Ivan
Venue
Clinical Neurophysiology
Publisher
Elsevier BV
Published
2001-09
Volume
112
Issue
9
Pages
1626-1632
ISSN
1388-2457 (ISSN-L)
OpenAlex
W2079788729
Cited by
107
References
18
Citations by year
2026: 1 · 2025: 5 · 2024: 5 · 2023: 8 · 2022: 6 · 2021: 5 · 2020: 9 · 2019: 4 · 2018: 2 · 2017: 5 · 2016: 4 · 2015: 5 · 2014: 2 · 2013: 6 · 2012: 7
FWCI
1.87
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical Neurophysiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
Keywords
tremor, tremor classification, surface electromyography, essential tremor, Parkinson's disease, parkinsonian tremor, cerebellar tremor, psychogenic tremor, antagonist muscles
MeSH terms
Adult, Aged, Anxiety, Mental Disorders, Brain Diseases, Cerebellar Diseases, Diagnosis, Differential, Electromyography, Female, Humans, Male, Mesencephalon, Middle Aged, Parkinson Disease, Tremor

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