Objectives: The University of Wisconsin Running Injury and Recovery Index (UWRI) is the first running-specific patient-reported outcome measure (PRO). The UWRI evaluates the key elements runners use to self-assess running ability during recovery. This study evaluated the construct-related validity and responsiveness of the UWRI as an evaluative PRO of running ability following running-related injury (RRI). Design: Prospective longitudinal study. Methods: Runners seeking care from a physical therapist for a RRI (n=396) completed PROs at baseline and 12 weeks later. UWRI change was validated against the global rating of change (GROC), VR-12 change, and change in body region-specific PROs. Responsiveness was evaluated using anchor-based and distribution-based techniques. Results: UWRI change (mean±SD 7.7±8.9) was correlated with GROC (r=0.67), as well as the changes in VR-12 physical component score (PCS) (r=0.54) and mental component score (MCS) (r=0.31). UWRI change was correlated with changes in the Foot and Ankle Ability Measure sport subscale (r=0.75), 12-item international hip outcome tool (r=0.75), and anterior knee pain scale (r=0.48), but not associated with the Oswestry Disability Index 2.0 (r=0.05). UWRI change was significantly different in runners reporting significant improvement (12.2±5.9), slight improvement (7.1±6.6), no change (0.0±9.1), and worsening (-14.6±7.4) on the GROC anchor-based responsiveness assessment. The UWRI minimal important change and minimal clinical important difference was 5 and 8 points, respectively. Conclusion: The UWRI is a valid clinical tool for evaluating running ability following RRI; it demonstrated longitudinal (GROC), convergent (PCS and body region-specific PROs), divergent validity (MCS), and responsiveness to changes in patient-perceived running ability. Der Fragebogen ist hier zu finden: https://stadiasportsmedicine.com/pdf/outcomes/Running.pdf
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