R Lee Kirby1, Lynn A Worobey2, Rachel Cowan3, Jessica Presperin Pedersen4, Allen W Heinemann5, Trevor A Dyson-Hudson6, Mary Shea7, Cher Smith8, Paula W Rushton9, Michael L Boninger2. 1. Division of Physical Medicine and Rehabilitation, Dalhousie University, Halifax, NS, Canada. Electronic address: kirby@dal.ca. 2. Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, PA. 3. The Miami Project to Cure Paralysis, Department of Neurological Surgery, University of Miami, Miami, FL. 4. Rehabilitation Institute of Chicago, Chicago, IL. 5. School of Medicine, Northwestern University, Chicago, IL. 6. Kessler Foundation, West Orange, NJ. 7. Kessler Institute for Rehabilitation, West Orange, NJ. 8. Capital District Health Authority, Halifax, NS. 9. School of Rehabilitation, Occupational Therapy Program, Faculty of Medicine, University of Montreal, Montreal, QC, Canada.
Abstract
OBJECTIVES: To describe the wheelchair skills capacity and performance of experienced manual wheelchair users with spinal cord injury (SCI) and to assess measurement properties of the Wheelchair Skills Test (WST) and Wheelchair Skills Test Questionnaire (WST-Q). DESIGN: Cross-sectional descriptive study involving within-subject comparisons. SETTING: Four Spinal Cord Injury Model Systems centers. PARTICIPANTS: Manual wheelchair users with SCI (N=117). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: WST and WST-Q version 4.2 as well as measures for Confidence, Basic Mobility, Independence, Ability to Participate, Satisfaction, and Pain Interference. RESULTS: The median (interquartile range) values for WST capacity, WST-Q capacity, and WST-Q performance were 81.0% (69.0%-90.0%), 88.0% (77.0%-97.0%), and 76.0% (66.3%-84.0%). The total WST capacity scores correlated significantly with the total WST-Q capacity scores (r=.76; P<.01) and WST-Q performance scores (r=.55; P<.01). The total WST-Q capacity and WST-Q performance scores were correlated significantly (r=.63; P<.001). Success rates were <75% for 10 of the 32 (31%) individual skills on the WST and 6 of the 32 (19%) individual skills on the WST-Q. Regression models for the total WST and WST-Q measures identified statistically significant predictors including age, sex, body mass index, and/or level of injury. The WST and WST-Q measures correlated significantly with the Confidence, Basic Mobility, Independence, or Pain Interference measures. CONCLUSIONS: Many people with SCI are unable to or do not perform some of the wheelchair skills that would allow them to participate more fully. More wheelchair skills training may enhance participation and quality of life of adults with SCI. The WST and WST-Q exhibit good content, construct, and concurrent validity.
OBJECTIVES: To describe the wheelchair skills capacity and performance of experienced manual wheelchair users with spinal cord injury (SCI) and to assess measurement properties of the Wheelchair Skills Test (WST) and Wheelchair Skills Test Questionnaire (WST-Q). DESIGN: Cross-sectional descriptive study involving within-subject comparisons. SETTING: Four Spinal Cord Injury Model Systems centers. PARTICIPANTS: Manual wheelchair users with SCI (N=117). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: WST and WST-Q version 4.2 as well as measures for Confidence, Basic Mobility, Independence, Ability to Participate, Satisfaction, and Pain Interference. RESULTS: The median (interquartile range) values for WST capacity, WST-Q capacity, and WST-Q performance were 81.0% (69.0%-90.0%), 88.0% (77.0%-97.0%), and 76.0% (66.3%-84.0%). The total WST capacity scores correlated significantly with the total WST-Q capacity scores (r=.76; P<.01) and WST-Q performance scores (r=.55; P<.01). The total WST-Q capacity and WST-Q performance scores were correlated significantly (r=.63; P<.001). Success rates were <75% for 10 of the 32 (31%) individual skills on the WST and 6 of the 32 (19%) individual skills on the WST-Q. Regression models for the total WST and WST-Q measures identified statistically significant predictors including age, sex, body mass index, and/or level of injury. The WST and WST-Q measures correlated significantly with the Confidence, Basic Mobility, Independence, or Pain Interference measures. CONCLUSIONS: Many people with SCI are unable to or do not perform some of the wheelchair skills that would allow them to participate more fully. More wheelchair skills training may enhance participation and quality of life of adults with SCI. The WST and WST-Q exhibit good content, construct, and concurrent validity.
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