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Effects of Constraining Postural Sway During Upper-Limb Precision Aiming Task Practice in Individuals with Stroke.

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Title: Effects of Constraining Postural Sway During Upper-Limb Precision Aiming Task Practice in Individuals with Stroke.
Authors: Schwab-Farrell, Sarah M. (AUTHOR), Mayr, Riley (AUTHOR), Davis, Tehran J. (AUTHOR), Riley, Michael A. (AUTHOR), Silva, Paula L. (AUTHOR)
Source: Journal of Motor Behavior. 2025, Vol. 57 Issue 1, p61-76. 16p.
Subjects: Stroke, Task performance, Forelimb, Trial practice, Adults
Abstract: Individuals post-stroke commonly demonstrate alterations in motor behavior with regard to both task performance and the motor strategies used in pursuit of task goals. We evaluated whether constraining postural sway (motor strategy) during practice would affect upper-limb precision aiming performance (task performance) and postural control adaptations. Adults with stroke stood on a force plate while immersed in a virtual scene displaying an anterior target. Participants aimed to position a virtual laser pointer (via handheld device) in the target. Participants then completed practice trials involving aiming at a lateral target. For this practice session, participants were randomized to either (a) a "constraint" group wherein they received physical constraint to limit postural sway, or (b) a "no-constraint" group. Task performance and postural control were assessed before and after practice, and transfer to another upper-limb task was evaluated. After practice, both groups improved paretic upper-limb performance. For the target task, the no-constraint group showed task-sensitive changes in postural control. The constraint group showed no changes in postural control. At transfer, the constraint group increased postural sway. Constraining postural sway after stroke should be carefully considered with the recognition that postural sway arises from exploratory movements involved in the discovery of adaptable motor solutions. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Motor Behavior 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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  Label: Title
  Group: Ti
  Data: Effects of Constraining Postural Sway During Upper-Limb Precision Aiming Task Practice in Individuals with Stroke.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Schwab-Farrell%2C+Sarah+M%2E%22">Schwab-Farrell, Sarah M.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mayr%2C+Riley%22">Mayr, Riley</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Davis%2C+Tehran+J%2E%22">Davis, Tehran J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Riley%2C+Michael+A%2E%22">Riley, Michael A.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Silva%2C+Paula+L%2E%22">Silva, Paula L.</searchLink> (AUTHOR)
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  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Motor+Behavior%22">Journal of Motor Behavior</searchLink>. 2025, Vol. 57 Issue 1, p61-76. 16p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Stroke%22">Stroke</searchLink><br /><searchLink fieldCode="DE" term="%22Task+performance%22">Task performance</searchLink><br /><searchLink fieldCode="DE" term="%22Forelimb%22">Forelimb</searchLink><br /><searchLink fieldCode="DE" term="%22Trial+practice%22">Trial practice</searchLink><br /><searchLink fieldCode="DE" term="%22Adults%22">Adults</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Individuals post-stroke commonly demonstrate alterations in motor behavior with regard to both task performance and the motor strategies used in pursuit of task goals. We evaluated whether constraining postural sway (motor strategy) during practice would affect upper-limb precision aiming performance (task performance) and postural control adaptations. Adults with stroke stood on a force plate while immersed in a virtual scene displaying an anterior target. Participants aimed to position a virtual laser pointer (via handheld device) in the target. Participants then completed practice trials involving aiming at a lateral target. For this practice session, participants were randomized to either (a) a "constraint" group wherein they received physical constraint to limit postural sway, or (b) a "no-constraint" group. Task performance and postural control were assessed before and after practice, and transfer to another upper-limb task was evaluated. After practice, both groups improved paretic upper-limb performance. For the target task, the no-constraint group showed task-sensitive changes in postural control. The constraint group showed no changes in postural control. At transfer, the constraint group increased postural sway. Constraining postural sway after stroke should be carefully considered with the recognition that postural sway arises from exploratory movements involved in the discovery of adaptable motor solutions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Motor Behavior 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.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=182209845
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/00222895.2024.2416232
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 61
    Subjects:
      – SubjectFull: Stroke
        Type: general
      – SubjectFull: Task performance
        Type: general
      – SubjectFull: Forelimb
        Type: general
      – SubjectFull: Trial practice
        Type: general
      – SubjectFull: Adults
        Type: general
    Titles:
      – TitleFull: Effects of Constraining Postural Sway During Upper-Limb Precision Aiming Task Practice in Individuals with Stroke.
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            NameFull: Schwab-Farrell, Sarah M.
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            NameFull: Mayr, Riley
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            NameFull: Davis, Tehran J.
      – PersonEntity:
          Name:
            NameFull: Riley, Michael A.
      – PersonEntity:
          Name:
            NameFull: Silva, Paula L.
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            – D: 01
              M: 01
              Text: 2025
              Type: published
              Y: 2025
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              Value: 57
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            – TitleFull: Journal of Motor Behavior
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