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Using surface electromyography to guide the activation during motor-evoked potential measurement: An activation control method for follow-up studies.

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Title: Using surface electromyography to guide the activation during motor-evoked potential measurement: An activation control method for follow-up studies.
Authors: Lin, Li-Fong (AUTHOR), Huang, Ying-Zu (AUTHOR), Hu, Chaur-Jong (AUTHOR), Liou, Tsan-Hon (AUTHOR), Chang, Kwang-Hwa (AUTHOR), Lin, Yen-Nung (AUTHOR)
Source: Brain Injury. Dec2015, Vol. 29 Issue 13/14, p1661-1666. 6p.
Subjects: Electromyography, Evoked potentials (Electrophysiology), Magnetotherapy, Research funding, Statistics, Stroke, Data analysis, Statistical reliability, Quadriceps muscle, Data analysis software, Descriptive statistics, Mann Whitney U Test, Barthel Index, Intraclass correlation, NIH Stroke Scale
Geographic Terms: Taiwan
Abstract: Objective: This study evaluated the reliability and validity of a convenient method that uses the real-time feedback surface electromyography (sEMG) to control muscle activation while measuring the MEP recorded from the quadriceps muscle in patients with stroke. Methods: It measured the MEP parameters as well as the clinical assessment at initial test. Participants were directed to adjust their quadriceps contraction to extend the knee isometrically and maintain the EMG amplitude at 0.2 mV. MEPs were measured 2 weeks after the initial test again to assess the reliability of this measurement. Results: A good test–re-test reliability was demonstrated with an intra-class correlation coefficient (ICC) > 0.8 for the motor threshold and a moderate reliability (ICC > 0.6) for the MEP latency and MEP amplitude, for both paretic and non-paretic legs. Patients with present MEPs had significantly higher scores in muscle power, the Fugl-Meyer assessment, the balance sub-scale of performance-oriented mobility assessment and the Barthel index; and lower NIHSS scores than those of patients with absent MEPs (allp < 0.05). Conclusion: The sEMG-guided low level muscle activation is suitable for MEP assessment in patients with leg weakness after a stroke and may be used for long-term follow-up studies. [ABSTRACT FROM PUBLISHER]
Copyright of Brain Injury is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Using surface electromyography to guide the activation during motor-evoked potential measurement: An activation control method for follow-up studies.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lin%2C+Li-Fong%22&quot;&gt;Lin, Li-Fong&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Huang%2C+Ying-Zu%22&quot;&gt;Huang, Ying-Zu&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hu%2C+Chaur-Jong%22&quot;&gt;Hu, Chaur-Jong&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Liou%2C+Tsan-Hon%22&quot;&gt;Liou, Tsan-Hon&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Chang%2C+Kwang-Hwa%22&quot;&gt;Chang, Kwang-Hwa&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lin%2C+Yen-Nung%22&quot;&gt;Lin, Yen-Nung&lt;/searchLink&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Brain+Injury%22&quot;&gt;Brain Injury&lt;/searchLink&gt;. Dec2015, Vol. 29 Issue 13/14, p1661-1666. 6p.
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– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Objective: This study evaluated the reliability and validity of a convenient method that uses the real-time feedback surface electromyography (sEMG) to control muscle activation while measuring the MEP recorded from the quadriceps muscle in patients with stroke. Methods: It measured the MEP parameters as well as the clinical assessment at initial test. Participants were directed to adjust their quadriceps contraction to extend the knee isometrically and maintain the EMG amplitude at 0.2 mV. MEPs were measured 2 weeks after the initial test again to assess the reliability of this measurement. Results: A good test–re-test reliability was demonstrated with an intra-class correlation coefficient (ICC) &gt; 0.8 for the motor threshold and a moderate reliability (ICC &gt; 0.6) for the MEP latency and MEP amplitude, for both paretic and non-paretic legs. Patients with present MEPs had significantly higher scores in muscle power, the Fugl-Meyer assessment, the balance sub-scale of performance-oriented mobility assessment and the Barthel index; and lower NIHSS scores than those of patients with absent MEPs (allp &lt; 0.05). Conclusion: The sEMG-guided low level muscle activation is suitable for MEP assessment in patients with leg weakness after a stroke and may be used for long-term follow-up studies. [ABSTRACT FROM PUBLISHER]
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  Data: &lt;i&gt;Copyright of Brain Injury is the property of Taylor &amp; Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3109/02699052.2015.1075150
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 6
        StartPage: 1661
    Subjects:
      – SubjectFull: Electromyography
        Type: general
      – SubjectFull: Evoked potentials (Electrophysiology)
        Type: general
      – SubjectFull: Magnetotherapy
        Type: general
      – SubjectFull: Research funding
        Type: general
      – SubjectFull: Statistics
        Type: general
      – SubjectFull: Stroke
        Type: general
      – SubjectFull: Data analysis
        Type: general
      – SubjectFull: Statistical reliability
        Type: general
      – SubjectFull: Quadriceps muscle
        Type: general
      – SubjectFull: Data analysis software
        Type: general
      – SubjectFull: Descriptive statistics
        Type: general
      – SubjectFull: Mann Whitney U Test
        Type: general
      – SubjectFull: Barthel Index
        Type: general
      – SubjectFull: Intraclass correlation
        Type: general
      – SubjectFull: NIH Stroke Scale
        Type: general
      – SubjectFull: Taiwan
        Type: general
    Titles:
      – TitleFull: Using surface electromyography to guide the activation during motor-evoked potential measurement: An activation control method for follow-up studies.
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            NameFull: Lin, Li-Fong
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            NameFull: Huang, Ying-Zu
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            NameFull: Hu, Chaur-Jong
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            NameFull: Liou, Tsan-Hon
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            NameFull: Chang, Kwang-Hwa
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            NameFull: Lin, Yen-Nung
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            – D: 01
              M: 12
              Text: Dec2015
              Type: published
              Y: 2015
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              Value: 29
            – Type: issue
              Value: 13/14
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            – TitleFull: Brain Injury
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