Quantitative Electromyographic Analysis of Reaction Time to External Auditory Stimuli in Drug-Naïve Parkinson’s Disease
Joint Authors
Kwon, Do-Young
Park, Byung Kyu
Kim, Ji Won
Eom, Gwang-Moon
Hong, Junghwa
Koh, Seong-Beom
Park, Kun-Woo
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-02
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Evaluation of motor symptoms in Parkinson’s disease (PD) is still based on clinical rating scales by clinicians.
Reaction time (RT) is the time interval between a specific stimulus and the start of muscle response.
The aim of this study was to identify the characteristics of RT responses in PD patients using electromyography (EMG) and to elucidate the relationship between RT and clinical features of PD.
The EMG activity of 31 PD patients was recorded during isometric muscle contraction.
RT was defined as the time latency between an auditory beep and responsive EMG activity.
PD patients demonstrated significant delays in both initiation and termination of muscle contraction compared with controls.
Cardinal motor symptoms of PD were closely correlated with RT.
RT was longer in more-affected side and in more-advanced PD stages.
Frontal cognitive function, which is indicative of motor programming and movement regulation and perseveration, was also closely related with RT.
In conclusion, greater RT is the characteristic motor features of PD and it could be used as a sensitive tool for motor function assessment in PD patients.
Further investigations are required to clarify the clinical impact of the RT on the activity of daily living of patients with PD.
American Psychological Association (APA)
Kwon, Do-Young& Park, Byung Kyu& Kim, Ji Won& Eom, Gwang-Moon& Hong, Junghwa& Koh, Seong-Beom…[et al.]. 2014. Quantitative Electromyographic Analysis of Reaction Time to External Auditory Stimuli in Drug-Naïve Parkinson’s Disease. Parkinson’s Disease،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1047223
Modern Language Association (MLA)
Kwon, Do-Young…[et al.]. Quantitative Electromyographic Analysis of Reaction Time to External Auditory Stimuli in Drug-Naïve Parkinson’s Disease. Parkinson’s Disease No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1047223
American Medical Association (AMA)
Kwon, Do-Young& Park, Byung Kyu& Kim, Ji Won& Eom, Gwang-Moon& Hong, Junghwa& Koh, Seong-Beom…[et al.]. Quantitative Electromyographic Analysis of Reaction Time to External Auditory Stimuli in Drug-Naïve Parkinson’s Disease. Parkinson’s Disease. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1047223
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047223