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Journal of Occupational Rehabilitation

, Volume 17, Issue 1, pp 63–72 | Cite as

Are deficiencies in manual tracking associated with upper extremity cumulative trauma disorders?

  • Brenda Brouwer
  • Matthew Faris
Original Paper

Abstract

Objectives: To examine the reliability of manual tracking performance and its association with impairment and disability in individuals symptomatic of an upper extremity cumulative trauma disorder (CTD). Methods: Volunteer and physician referred subjects (100 control, 140 CTD) tracked a target cursor moving quasi-randomly using a hand-held stylus interfaced with a digitizing tablet. Impairment was physician-rated and the Disability of the Arm, Shoulder and Hand questionnaire measured disability. Subsamples of 25 subjects per group were tested on three occasions. Results: Reliability of tracking performance was excellent (ICC ≥ 0.88) and sensitivity was 81%. Performance was superior in controls (p < 0.001) and deteriorated as a function of impairment level (p < 0.001). Tracking and impairment rating explained 65% of the disability score. Conclusions: Tracking performance may be an important outcome for monitoring change over time and the impact of a CTD on function in everyday activities.

Keywords

Impairment Disability Musculoskeletal disorders Repetitive strain 

Notes

Acknowledgment

This research was supported by a grant from the Workplace Safety and Insurance Board of Ontario. We gratefully acknowledge project funding from the Workplace Safety and Insurance Board of Ontario.

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  1. 1.Motor Performance LaboratorySchool of Rehabilitation Therapy, 31 George Street Queen)s UniversityKingstonCanada
  2. 2.Department of Physical Medicine and RehabilitationQueen)s UniversityKingstonCanada

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