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Kinematic Analysis Using 3D Motion Capture of Drinking Task in People With and Without Upper-extremity Impairments
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WOrk-Related Questionnaire for UPper extremity disorders (WORQ-UP): Factor Analysis and Internal Consistency
Bas R Aerts1, P Paul Kuijer2, Annechien Beumer3
1Academic Medical Center, University of Amsterdam, Coronel Institute of Occupational Health, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands; Amphia Hospital, Department of Orthopaedic Surgery, Upper Limb Unit, Breda, The Netherlands.
Archives of Physical Medicine and Rehabilitation
|April 22, 2018
Summary
The Work-Related Questionnaire for Upper Extremity Disorders (WORQ-UP) demonstrates good internal consistency and identifies four key factors: exertion, dexterity, tools & equipment, and mobility for upper extremity disorders.
Area of Science:
- Orthopedics
- Occupational Health
- Psychometrics
Background:
- Upper extremity musculoskeletal disorders are common.
- Accurate assessment tools are crucial for diagnosis and treatment.
- The Work-Related Questionnaire for Upper Extremity Disorders (WORQ-UP) was developed to assess work-related factors.
Purpose of the Study:
- To evaluate the dimensionality of the 17-item WORQ-UP using factor analysis.
- To assess the internal consistency of the WORQ-UP.
Main Methods:
- A cross-sectional study was conducted in an orthopedic outpatient clinic.
- 150 new referral patients with upper extremity musculoskeletal disorders participated.
- Factor analysis was performed to determine the underlying structure of the WORQ-UP.
Main Results:
- Factor analysis revealed four distinct factors with eigenvalues greater than 1.0: exertion, dexterity, tools & equipment, and mobility.
- These four factors explained 65.9% of the total variance.
- Internal consistency, measured by Cronbach's alpha, was good for all factors (ranging from .66 to .88).
Conclusions:
- The 17 items of the WORQ-UP effectively represent four underlying factors related to upper extremity disorders.
- The questionnaire demonstrates good internal consistency, making it a reliable tool for assessing work-related factors in patients with upper extremity conditions.
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