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Extending Energy Optimization in Goal-Directed Aiming from Movement Kinematics to Joint Angles.

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Title: Extending Energy Optimization in Goal-Directed Aiming from Movement Kinematics to Joint Angles.
Authors: Burkitt, James J. (AUTHOR), Bongers, Raoul M. (AUTHOR), Elliott, Digby (AUTHOR), Hansen, Steve (AUTHOR), Lyons, James L. (AUTHOR)
Source: Journal of Motor Behavior. Mar/Apr2017, Vol. 49 Issue 2, p129-140. 12p. 5 Charts, 3 Graphs.
Subjects: Energy consumption, Arm, Exercise, Caloric expenditure, Kinematics, Arm physiology, Joint physiology, Energy metabolism, Goal (Psychology), Gravitation, Statistical sampling, Body movement, Physiology
Abstract: Energy optimization in goal-directed aiming has been demonstrated as an undershoot bias in primary movement endpoint locations, especially in conditions where corrections to target overshoots must be made against gravity. Two-component models of upper limb movement have not yet considered how joint angles are organized to deal with the energy constraints associated with moving the upper limb in goal-directed aiming tasks. To address this limitation, participants performed aiming movements to targets in the up and down directions with the index finger and two types of rod extensions attached to the index finger. The rod extensions were expected to invoke different energy optimizing strategies in the up and down directions by allowing the distal joints the opportunity to contribute to end effector displacement. Primary movements undershot the farthest target to a greater extent in the downward direction compared to the upward direction, showing that movement kinematics optimize energy expenditure in consideration of the effects of gravity. As rod length increased, shoulder elevation was optimized in movements to the far-up target and elbow flexion was optimally minimized in movements to the far-down target. The results suggest energy optimization in the control of joint angles independent of the force of gravity. [ABSTRACT FROM PUBLISHER]
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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DbLabel: Psychology and Behavioral Sciences Collection
An: 121994342
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PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Extending Energy Optimization in Goal-Directed Aiming from Movement Kinematics to Joint Angles.
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  Data: <searchLink fieldCode="AR" term="%22Burkitt%2C+James+J%2E%22">Burkitt, James J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bongers%2C+Raoul+M%2E%22">Bongers, Raoul M.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Elliott%2C+Digby%22">Elliott, Digby</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hansen%2C+Steve%22">Hansen, Steve</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lyons%2C+James+L%2E%22">Lyons, James L.</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Motor+Behavior%22">Journal of Motor Behavior</searchLink>. Mar/Apr2017, Vol. 49 Issue 2, p129-140. 12p. 5 Charts, 3 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Arm%22">Arm</searchLink><br /><searchLink fieldCode="DE" term="%22Exercise%22">Exercise</searchLink><br /><searchLink fieldCode="DE" term="%22Caloric+expenditure%22">Caloric expenditure</searchLink><br /><searchLink fieldCode="DE" term="%22Kinematics%22">Kinematics</searchLink><br /><searchLink fieldCode="DE" term="%22Arm+physiology%22">Arm physiology</searchLink><br /><searchLink fieldCode="DE" term="%22Joint+physiology%22">Joint physiology</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+metabolism%22">Energy metabolism</searchLink><br /><searchLink fieldCode="DE" term="%22Goal+%28Psychology%29%22">Goal (Psychology)</searchLink><br /><searchLink fieldCode="DE" term="%22Gravitation%22">Gravitation</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+sampling%22">Statistical sampling</searchLink><br /><searchLink fieldCode="DE" term="%22Body+movement%22">Body movement</searchLink><br /><searchLink fieldCode="DE" term="%22Physiology%22">Physiology</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Energy optimization in goal-directed aiming has been demonstrated as an undershoot bias in primary movement endpoint locations, especially in conditions where corrections to target overshoots must be made against gravity. Two-component models of upper limb movement have not yet considered how joint angles are organized to deal with the energy constraints associated with moving the upper limb in goal-directed aiming tasks. To address this limitation, participants performed aiming movements to targets in the up and down directions with the index finger and two types of rod extensions attached to the index finger. The rod extensions were expected to invoke different energy optimizing strategies in the up and down directions by allowing the distal joints the opportunity to contribute to end effector displacement. Primary movements undershot the farthest target to a greater extent in the downward direction compared to the upward direction, showing that movement kinematics optimize energy expenditure in consideration of the effects of gravity. As rod length increased, shoulder elevation was optimized in movements to the far-up target and elbow flexion was optimally minimized in movements to the far-down target. The results suggest energy optimization in the control of joint angles independent of the force of gravity. [ABSTRACT FROM PUBLISHER]
– 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=121994342
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1080/00222895.2016.1161592
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 129
    Subjects:
      – SubjectFull: Energy consumption
        Type: general
      – SubjectFull: Arm
        Type: general
      – SubjectFull: Exercise
        Type: general
      – SubjectFull: Caloric expenditure
        Type: general
      – SubjectFull: Kinematics
        Type: general
      – SubjectFull: Arm physiology
        Type: general
      – SubjectFull: Joint physiology
        Type: general
      – SubjectFull: Energy metabolism
        Type: general
      – SubjectFull: Goal (Psychology)
        Type: general
      – SubjectFull: Gravitation
        Type: general
      – SubjectFull: Statistical sampling
        Type: general
      – SubjectFull: Body movement
        Type: general
      – SubjectFull: Physiology
        Type: general
    Titles:
      – TitleFull: Extending Energy Optimization in Goal-Directed Aiming from Movement Kinematics to Joint Angles.
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            NameFull: Burkitt, James J.
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            NameFull: Bongers, Raoul M.
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            NameFull: Elliott, Digby
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            NameFull: Hansen, Steve
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              M: 03
              Text: Mar/Apr2017
              Type: published
              Y: 2017
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              Value: 00222895
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              Value: 49
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