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Comput Methods Programs Biomed. 2014 May;114(3):315-23. doi: 10.1016/j.cmpb.2014.02.012. Epub 2014 Mar 15.

Validity and reliability of a novel device for bilateral upper extremity functional measurements.

Author information

  • 1Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan; Department of Physical Therapy, Hung-Kung University, Taichung, Taiwan.
  • 2Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan.
  • 3Cheng Hsin Hospital, Taipei, Taiwan.
  • 4Tri-Service General Hospital, Taipei, Taiwan.
  • 5Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan. Electronic address: whsung@ym.edu.tw.

Abstract

BACKGROUND AND OBJECTIVE:

This study was designed to establish the validity and reliability of a new device that measures bilateral shoulder and elbow range of motion (ROM) and grip force performance in vivo. A further aim was to investigate the control of inter-limb grip force coordination during isometric force-maintenance tasks. Validity of the ROM and grip force measurements was examined using a validated clinical goniometer and standard weights.

SUBJECTS:

Twenty-one healthy adults (six female, 15 male; mean±standard deviation age=23.05±3.51) were recruited for this study.

DESIGN:

All subjects were asked to perform tests to evaluate the validity and reliability of ROM, grip force maximum voluntary contraction (MVC) and coordination control measurements.

RESULTS:

The ROM and grip force measurements were linearly correlated with criterion standards. For reliability testing, all of the intraclass correlation coefficient values were >0.99. The inter-limb grip force coordination control task showed that the force modulation timing during dominant-to-non-dominant hand transition was longer than the non-dominant-to-dominant hand transition (p<0.05).

CONCLUSIONS:

These results demonstrate that this device is valid and reliable when used to measure shoulder and elbow ROM and grip force of both hands. Isometric force-maintenance tasks also indicated changes in inter-limb grip force control.

Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

KEYWORDS:

Grip force; Motor control; Range of motion; Upper extremity

PMID:
24690377
[PubMed - indexed for MEDLINE]
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