Effect of Quadriceps Strength and Proprioception on Risk for Knee Osteoarthritis

• DOI: 10.1249/mss.0b013e3181dd902e
• Publication Date: 2010-03-26T09:39:10Z
• Authors: NEIL A. SEGAL; NATALIE A. GLASS; DAVID T. FELSON; MICHAEL HURLEY; MEI YANG; MICHAEL NEVITT; CORA E. LEWIS; JAMES C. TORNER
• Keywords: Proprioception; Knee pain

Impaired quadriceps strength and joint position sense (JPS) have been linked with knee osteoarthritis (OA) cross-sectionally. Although neither has independently associated incident radiographic OA, their combination may mediate risk. The purpose of this study was to determine whether better sensorimotor function protects against the development or symptomatic OA.The Multicenter Osteoarthritis is a longitudinal adults aged 50–79 yr at high risk for OA. Participants underwent bilateral, weight-bearing, fixed-flexion radiographs, JPS acuity tests, isokinetic tests. relationships between combinations tertiles sex-specific baseline peak mean (Kellgren–Lawrence (KL) grade Q2) OA (KL Q2 frequent pain stiffness) 30-month follow-up were evaluated. Secondary analyses defined as variance during 10 trials also assessed interaction in predicting each outcome.The included 1390 participants (age = 61.2 ± 7 .9 body mass index 29.4 5.1 kg·m−²), 1829 62.2 8.0 30.0 5.4 kg·m−²). Greater protected but not regardless tertile. There no significant relationship strength–JPS finding that tertile suggests be more important than mediating