Rheumatology

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Limitations in activities in patients with osteoarthritis of the hip or knee: The relationship with body functions, comorbidity and cognitive functioning
Disability & Rehabilitation, 09/25/09

van Dijk GM et al. – Self-reported limitations in activities in hip or knee OA are largely dependent on pain and range of joint motion, muscle strength and comorbidity. Performance-based limitations in activities are largely dependent on range of joint motion and muscle strength, and pain, cognitive functioning and other factors. These findings point to the role of body functions in limitations in activities in OA of the hip or knee. Comorbidity and cognitive functioning play a role as well.

• Cross-sectional cohort study was conducted in which 288 patients with hip or knee OA were included.
• Apart from demographic and clinical data, information about limitations in activities, body functions (pain, muscle strength, range of joint motion), comorbidity and cognitive functioning collected by questionnaires and tests
• Statistical analyses included univariate and stepwise multivariate regression analysis

• Self-reported limitations in activities (Western Ontario and McMaster Universities Osteoarthritis Index) significantly associated with pain, muscle strength knee extension, range of motion (ROM) hip flexion and morbidity count
• Performance-based limitations in activities (timed walking test) significantly associated with ROM (knee flexion, hip flexion and knee extension), muscle strength hip abduction, pain, cognitive functioning and age

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