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Quadriceps Strength and Temporal Preparation in Elderly Adults: The Mediating Role of Beta Oscillation.

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Title: Quadriceps Strength and Temporal Preparation in Elderly Adults: The Mediating Role of Beta Oscillation.
Authors: Ho, Ming‐Cho (AUTHOR), Fu, Hao‐Lun (AUTHOR), Kao, Shih‐Chun (AUTHOR), Moreau, David (AUTHOR), Liang, Wei‐Kuang (AUTHOR), Kuo, Hsin‐Yu (AUTHOR), Wang, Chun‐Hao (AUTHOR)
Source: European Journal of Neuroscience. Apr2025, Vol. 61 Issue 7, p1-14. 14p.
Subjects: Quadriceps muscle, Older people, Physical mobility, Electroencephalography, Cognitive psychology, Motor ability, Beta rhythm
Abstract: This study investigated the relationship between lower limb muscle strength and temporal preparation in older adults using an electroencephalogram to assess neural oscillations during cognitive processes. Forty older adults were divided into higher (HSG, 70.40 ± 5.15 years) and lower muscle strength (LSG, 71.43 ± 4.86 years) groups based on quadriceps strength estimated via a manual muscle test. Functional mobility was assessed using the Timed Up and Go (TUG) test, while temporal preparation was evaluated using a choice response time (RT) task with randomly varying foreperiods (FPs) that required lower limb motor responses. The HSG outperformed the LSG on both the TUG test (HSG: 6.07 ± 1.14 vs. LSG: 6.79 ± 0.88, p = 0.031) and the cognitive task (HSG: 462.97 ± 51.06 ms vs. LSG: 525.86 ± 73.69 ms, p = 0.002), despite no clear FP effect in either group. Additionally, the HSG demonstrated a more pronounced modulation of oscillatory beta power during the late phase of longer FP trials (qs < 0.05, FDR corrected), whereas no significant modulation was observed during shorter FP trials. Crucially, mediation analysis indicated that beta power significantly mediated the relationship between lower limb strength and RT in longer FP trials [b = −24.21; 95% CI = (−53.51, −0.24)]. In summary, these findings suggest that lower limb strength may influence the development of temporal preparation during longer preparatory periods by modulating beta power, potentially serving as a compensatory mechanism to mitigate age‐related declines in cognitive processing speed and preserve functional mobility. [ABSTRACT FROM AUTHOR]
Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell 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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  Label: Title
  Group: Ti
  Data: Quadriceps Strength and Temporal Preparation in Elderly Adults: The Mediating Role of Beta Oscillation.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ho%2C+Ming‐Cho%22&quot;&gt;Ho, Ming‐Cho&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Fu%2C+Hao‐Lun%22&quot;&gt;Fu, Hao‐Lun&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kao%2C+Shih‐Chun%22&quot;&gt;Kao, Shih‐Chun&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Moreau%2C+David%22&quot;&gt;Moreau, David&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Liang%2C+Wei‐Kuang%22&quot;&gt;Liang, Wei‐Kuang&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kuo%2C+Hsin‐Yu%22&quot;&gt;Kuo, Hsin‐Yu&lt;/searchLink&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Wang%2C+Chun‐Hao%22&quot;&gt;Wang, Chun‐Hao&lt;/searchLink&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22European+Journal+of+Neuroscience%22&quot;&gt;European Journal of Neuroscience&lt;/searchLink&gt;. Apr2025, Vol. 61 Issue 7, p1-14. 14p.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Quadriceps+muscle%22&quot;&gt;Quadriceps muscle&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Older+people%22&quot;&gt;Older people&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Physical+mobility%22&quot;&gt;Physical mobility&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Electroencephalography%22&quot;&gt;Electroencephalography&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Cognitive+psychology%22&quot;&gt;Cognitive psychology&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Motor+ability%22&quot;&gt;Motor ability&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Beta+rhythm%22&quot;&gt;Beta rhythm&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study investigated the relationship between lower limb muscle strength and temporal preparation in older adults using an electroencephalogram to assess neural oscillations during cognitive processes. Forty older adults were divided into higher (HSG, 70.40 &#177; 5.15 years) and lower muscle strength (LSG, 71.43 &#177; 4.86 years) groups based on quadriceps strength estimated via a manual muscle test. Functional mobility was assessed using the Timed Up and Go (TUG) test, while temporal preparation was evaluated using a choice response time (RT) task with randomly varying foreperiods (FPs) that required lower limb motor responses. The HSG outperformed the LSG on both the TUG test (HSG: 6.07 &#177; 1.14 vs. LSG: 6.79 &#177; 0.88, p = 0.031) and the cognitive task (HSG: 462.97 &#177; 51.06 ms vs. LSG: 525.86 &#177; 73.69 ms, p = 0.002), despite no clear FP effect in either group. Additionally, the HSG demonstrated a more pronounced modulation of oscillatory beta power during the late phase of longer FP trials (qs &lt; 0.05, FDR corrected), whereas no significant modulation was observed during shorter FP trials. Crucially, mediation analysis indicated that beta power significantly mediated the relationship between lower limb strength and RT in longer FP trials [b = −24.21; 95% CI = (−53.51, −0.24)]. In summary, these findings suggest that lower limb strength may influence the development of temporal preparation during longer preparatory periods by modulating beta power, potentially serving as a compensatory mechanism to mitigate age‐related declines in cognitive processing speed and preserve functional mobility. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: &lt;i&gt;Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell 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: 10.1111/ejn.70101
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 1
    Subjects:
      – SubjectFull: Quadriceps muscle
        Type: general
      – SubjectFull: Older people
        Type: general
      – SubjectFull: Physical mobility
        Type: general
      – SubjectFull: Electroencephalography
        Type: general
      – SubjectFull: Cognitive psychology
        Type: general
      – SubjectFull: Motor ability
        Type: general
      – SubjectFull: Beta rhythm
        Type: general
    Titles:
      – TitleFull: Quadriceps Strength and Temporal Preparation in Elderly Adults: The Mediating Role of Beta Oscillation.
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            NameFull: Ho, Ming‐Cho
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            NameFull: Fu, Hao‐Lun
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            NameFull: Kao, Shih‐Chun
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            NameFull: Moreau, David
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            NameFull: Liang, Wei‐Kuang
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            NameFull: Kuo, Hsin‐Yu
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            NameFull: Wang, Chun‐Hao
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            – D: 01
              M: 04
              Text: Apr2025
              Type: published
              Y: 2025
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            – TitleFull: European Journal of Neuroscience
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