To recommend a consensus-derived set of performance-based tests of physical function for
use in people diagnosed with hip or knee osteoarthritis (OA) or following joint replacement.
Methods: An international, multidisciplinary expert advisory group was established to guide the study.
Potential tests for consideration in the recommended set were identified via a survey of selected experts
and through a systematic review of the measurement properties for performance-based tests. A multiphase,
consensus-based approach was used to prioritize and select performance-based tests by applying
decision analysis methodology (1000Minds software) via online decision surveys. The recommended
tests were chosen based on available measurement-property evidence, feasibility of the tests, scoring
methods and expert consensus.
Results: Consensus incorporated the opinions of 138 experienced clinicians and researchers from 16
countries. The five tests recommended by the advisory group and endorsed by Osteoarthritis Research
Society International (OARSI) were the 30-s chair-stand test, 40 m fast-paced walk test, a stair-climb test,
timed up-and-go test and 6-min walk test. The first three were recommended as the minimal core set of
performance-based tests for hip or knee OA.
Conclusion: The OARSI recommended set of performance-based tests of physical function represents the
tests of typical activities relevant to individuals diagnosed with hip or knee OA and following joint replacements.
These tests are complementary to patient-reported measures and are recommended as prospective
outcome measures in futureOA research and to assist decision-making in clinical practice. Further
research should be directed to expanding the measurement-property evidence of the recommended tests.
Crown Copyright 2013 Published by Elsevier Ltd on behalf of Osteoarthritis Research Society
International. All rights reserved