influence of standardized activities on validity of assessment of capacity for myoelectric control
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Influence of standardized activities on validity of Assessment of Capacity for Myoelectric Control. Helen Y. N. Lindner, MSc; Ann-Christin Eliasson, PhD; Liselotte M. N. Hermansson, PhD. Aim

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influence of standardized activities on validity of assessment of capacity for myoelectric control

Influence of standardized activities on validity of Assessment of Capacityfor Myoelectric Control

Helen Y. N. Lindner, MSc; Ann-Christin Eliasson, PhD; Liselotte M. N. Hermansson, PhD

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Aim

    • Develop standardized activities for Assessment of Capacity for Myoelectric Control (ACMC) and examine influence of these activities on validity of ACMC.
  • Relevance
    • ACMC is an observation-based clinical tool that evaluates ability to control myoelectric prosthetic hand during bimanual activities.
method
Method
  • 6 activities were standardized for ACMC:
    • Repotting plant, ready-to-assemble project, setting table for 4 persons, mixing store-bought cake/pudding mix, sorting bills or pictures, packing suitcase.
  • Subjects performed 3 standardized activities.
    • Upper-limb myoelectric prosthesis users (47 congenital, 11 acquired).
  • Bias-interaction analysis in many-facet Rasch model identified inconsistent patterns:
    • In interactions of individual users and activity facets.
    • Between activities and user characteristics.
results
Results
  • Standardized activities did not significantly influence measures of user ability.
  • Activities functioned similarly across:
    • Both sexes.
    • Both prosthetic sides.
conclusion
Conclusion
  • Results:
    • Provide evidence for validity of ACMC across standardized activities.
    • Support use of ACMC in prosthesis users of both sexes and prosthetic sides.
  • Newly standardized activities are recommended for future ACMC use.
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