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Intramuscular and intermuscular coherence analysis while obstacle crossing during treadmill gait.

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Title: Intramuscular and intermuscular coherence analysis while obstacle crossing during treadmill gait.
Authors: Wen, Lin (AUTHOR), Watanabe, Tatsunori (AUTHOR), Iwamoto, Yoshitaka (AUTHOR), Ishii, Yosuke (AUTHOR), Miyoshi, Fumiya (AUTHOR), Shiraishi, Kanako (AUTHOR), Date, Shota (AUTHOR), Siu, Ka-Chun (AUTHOR), Kirimoto, Hikari (AUTHOR), Takahashi, Makoto (AUTHOR)
Source: Somatosensory & Motor Research. Dec2024, Vol. 41 Issue 4, p281-291. 11p.
Subjects: Biceps femoris, Knee muscles, Flexor muscles, Tibialis anterior, Motor unit
Abstract: Purpose: This study aimed to identify the contribution of the common synaptic drives to motor units during obstacle avoidance, using coherence analysis between a-pair electromyography (EMG) signals (EMG-EMG coherence). Materials and Methods: Fourteen healthy volunteers walked on a treadmill with and without obstacle avoidance. During obstacle gait, subjects were instructed to step over an obstacle with their right leg while walking that would randomly and unpredictably appear. Surface EMG signals were recorded from the following muscles of the right leg: the proximal and distal ends of tibialis anterior (TAp and TAd), biceps femoris (BF), semitendinosus (ST), lateral gastrocnemius (LG), and medial gastrocnemius (MG). Beta-band (13–30 Hz) EMG-EMG coherence was analysed. Results: Beta-band EMG-EMG coherence of TAp-TAd during swing phase and BF-ST during pre and initial swing phase when stepping over an obstacle were significantly higher compared to normal gait (both p < 0.05). Beta-band EMG-EMG coherence of TAp-TAd, BF-ST, and LG-MG during stance phase were not significantly different between the two gait conditions (all p > 0.05). Conclusions: The present findings suggest increased common synaptic drives to motor units in ankle dorsiflexor and knee flexor muscles during obstacle avoidance. It also may reflect an increased cortical contribution to modify the gait patterns to avoid an obstacle. [ABSTRACT FROM AUTHOR]
Copyright of Somatosensory & Motor Research 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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  Group: Ti
  Data: Intramuscular and intermuscular coherence analysis while obstacle crossing during treadmill gait.
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  Label: Authors
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Wen%2C+Lin%22&quot;&gt;Wen, Lin&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Watanabe%2C+Tatsunori%22&quot;&gt;Watanabe, Tatsunori&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Iwamoto%2C+Yoshitaka%22&quot;&gt;Iwamoto, Yoshitaka&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ishii%2C+Yosuke%22&quot;&gt;Ishii, Yosuke&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Miyoshi%2C+Fumiya%22&quot;&gt;Miyoshi, Fumiya&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Shiraishi%2C+Kanako%22&quot;&gt;Shiraishi, Kanako&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Date%2C+Shota%22&quot;&gt;Date, Shota&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Siu%2C+Ka-Chun%22&quot;&gt;Siu, Ka-Chun&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kirimoto%2C+Hikari%22&quot;&gt;Kirimoto, Hikari&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Takahashi%2C+Makoto%22&quot;&gt;Takahashi, Makoto&lt;/searchLink&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Somatosensory+%26+Motor+Research%22&quot;&gt;Somatosensory &amp; Motor Research&lt;/searchLink&gt;. Dec2024, Vol. 41 Issue 4, p281-291. 11p.
– Name: Subject
  Label: Subjects
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Biceps+femoris%22&quot;&gt;Biceps femoris&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Knee+muscles%22&quot;&gt;Knee muscles&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Flexor+muscles%22&quot;&gt;Flexor muscles&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Tibialis+anterior%22&quot;&gt;Tibialis anterior&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Motor+unit%22&quot;&gt;Motor unit&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: This study aimed to identify the contribution of the common synaptic drives to motor units during obstacle avoidance, using coherence analysis between a-pair electromyography (EMG) signals (EMG-EMG coherence). Materials and Methods: Fourteen healthy volunteers walked on a treadmill with and without obstacle avoidance. During obstacle gait, subjects were instructed to step over an obstacle with their right leg while walking that would randomly and unpredictably appear. Surface EMG signals were recorded from the following muscles of the right leg: the proximal and distal ends of tibialis anterior (TAp and TAd), biceps femoris (BF), semitendinosus (ST), lateral gastrocnemius (LG), and medial gastrocnemius (MG). Beta-band (13–30 Hz) EMG-EMG coherence was analysed. Results: Beta-band EMG-EMG coherence of TAp-TAd during swing phase and BF-ST during pre and initial swing phase when stepping over an obstacle were significantly higher compared to normal gait (both p &lt; 0.05). Beta-band EMG-EMG coherence of TAp-TAd, BF-ST, and LG-MG during stance phase were not significantly different between the two gait conditions (all p &gt; 0.05). Conclusions: The present findings suggest increased common synaptic drives to motor units in ankle dorsiflexor and knee flexor muscles during obstacle avoidance. It also may reflect an increased cortical contribution to modify the gait patterns to avoid an obstacle. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: &lt;i&gt;Copyright of Somatosensory &amp; Motor Research 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:
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    Identifiers:
      – Type: doi
        Value: 10.1080/08990220.2023.2296516
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 281
    Subjects:
      – SubjectFull: Biceps femoris
        Type: general
      – SubjectFull: Knee muscles
        Type: general
      – SubjectFull: Flexor muscles
        Type: general
      – SubjectFull: Tibialis anterior
        Type: general
      – SubjectFull: Motor unit
        Type: general
    Titles:
      – TitleFull: Intramuscular and intermuscular coherence analysis while obstacle crossing during treadmill gait.
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            NameFull: Wen, Lin
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              M: 12
              Text: Dec2024
              Type: published
              Y: 2024
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