Measurement properties of performance-based measures to assess physical function in knee osteoarthritis: A systematic review

Abstract

Objective To systematically review the measurement properties of performance-based measures to assess physical function in people with knee osteoarthritis. Data sources PubMed, Web of Science, Embase, Scopus, CINAHL, and PsycINFO were searched in May 2022. Methods This study was conducted in accordance with the guidelines recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analysis. Clinical trials on the psychometric properties of performance-based tools for measuring physical function in people with knee osteoarthritis were included. Two reviewers independently rated measurement properties using the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN). “Best evidence synthesis” was made using COnsensus-based Standards for the selection of health Measurement INstruments outcomes and the quality of findings. Results Thirty-six out of 3425 publications were eligible for inclusion. Thirty-two performance-based measures were evaluated including 26 single-activity measures and 6 multi-activity measures. Measurement properties evaluated included internal consistency (2 measures), reliability (23 measures), measurement error (20 measures), hypotheses testing for construct validity (22 measures), and responsiveness (23 measures). On balance of the limited evidence, the walk 40 m fast-paced test and 6-minute walking test were the best rated walking tests. The 30-second chair stand test and timed up and go test were the best rated sit-to-stand tests. The Performance Tests Measures and Physical Activity Restrictions may be the suitable multi-activity measures for knee osteoarthritis. Conclusions Further good quality research investigating the measurement properties, and in particular, the measurement error of performance-based measures in patients with knee osteoarthritis is needed.

Functional Capacity in Patients With Knee Osteoarthritis: Cross-Sectional Study

“… 5 , 6 However, meta-analysis shows that studies often assess the deficit of function by questionnaires. 17 This change in evaluation, with the implementation of the 6MWT, allows us to verify, in addition to the distance walked, physical conditioning and therapeutic effect. 5 , 6 …”

“…5,6,15,16 In the search for the best tools for assessing functional capacity in patients with KOA, the 6MWT and the 40-meter walk test are described. 17 The 6MWT is a clinical test that verifies the distance walked and measures cardiorespiratory variables, which allows a more complete assessment of cardiovascular and respiratory condition. 5,6 The 6MWT is commonly used to measure functional capacity before and after clinical trials.…”

Minimal detectable change of gait and balance measures in older neurological patients: estimating the standard error of the measurement from before-after rehabilitation data thanks to the linear mixed-effects models

“…Some Authors consider the MDC, as well as the limits of agreement, to be equivalent indicators of measurement errors (e.g. [ 15 ]). Moreover, according to the Risk of Bias checklist for systematic reviews of Patient Reported Outcome Measures developed by the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) [ 52 ], studies reporting the SEM, the MDC, or the limits of agreement should be considered “very good”.…”

“…Given the importance of adequately monitoring gait and balance in time, the MDC has been calculated for gait and balance measures, and even systematic reviews are available on this topic. However, these same reviews point out that the MDC is the least frequently assessed psychometric property of mobility measures [ 14 ], encouraging further research on its adoption in different clinical conditions, ranging from knee osteoarthritis [ 15 ] to stroke [ 16 ].…”

Effects of core exercises on knee pain, disability, proprioception, and quadriceps strength in patients with knee osteoarthritis: A randomized controlled trial

“…The aggregate locomotor function scale demonstrated high accuracy and reliability for functional assessment. It sums the times (in seconds) of 3 activities that patients carry out at a natural pace: "eightmeter walk", "stair ascent and descent", and "transferring from sitting to standing" [12]. Proprioception was conducted in the sitting position using an inclinometer as active knee angular reproduction at 30° knee flexion based on the work of SunerKeklik et al [13].…”