Activity-Modifying Behaviour Mediates the Relationship between Pain Severity and Activity Limitations among Adults with Emergent Knee Pain

PURPOSE: To determine whether activity-modifying behaviour mediates the relationship between the severity of knee pain and each of physical function and knee-related quality of life. METHODS: A total of 105 participants with medial knee pain and no diagnosis of knee osteoarthritis (mean age 52.2 [SD 6.7] y) completed two self-report questionnaires. The Questionnaire to Identify Knee Symptoms assessed activity-modifying behaviour; the Knee …