Pain, proprioception and motor behavior in knee OA
Osteoarthritis (OA) is usually characterized by pain, and associated with reduced muscle strength, disability and progressive loss of function. The aim of the study was to identify the levels of pain, the proprioceptive acuity and the pattern of muscle recruitment during stair ascent and descent in elderly patients (n=31) with mild and moderate osteoarthritis (OA) compared to healthy subjects (n=11).
The Western Ontario and McMaster Universities (WOMAC) osteoarthritis index, outlining the domains of pain, joint stiffness and function was used as an assessment measure. The proprioceptive acuity is based on the joint position sense. EMG and an electrogoniometer assessed electromyographic and kinematic evaluation.
Pain did not cause a significant change in the pattern of muscle recruitment during a task of climbing up and down stairs, and no change in the proprioceptive acuity.
> From: De Oliveira et al., BMC Musculoskelet Disord 15 (2014) 321. All rights reserved to The Author(s); published under the Creative Commons Attribution License. Click here for the Pubmed summary.