20.500.12556/RUL-154225 Responsiveness of isokinetic dynamometry in patients with osteoarthritis after knee and hip arthroplasty a prospective repeated-measures cohort study Functional assessments are crucial for the evaluation of rehabilitation after total knee (TKA) and hip (THA) arthroplasty. Muscle strength, a key determinant of physical function (PF), is often measured with isokinetic dynamometry (ID), which is considered the gold standard. However, studies lack evaluations of responsiveness—the ability to detect changes over time. This study aims to determine the responsiveness of ID in measuring PF in TKA and THA rehabilitation—is muscle strength a valid indicator for assessing improvement in rehabilitation processes? The pre- and post-surgery PF of 20 osteoarthritis patients (age 55–82) was assessed, using ID, performance-based and self-reported measures. Responsiveness was evaluated by comparing the observed relationship of changes in ID and PF scores with the a priori defined expected relationship of change scores. While the performance-based and self-reported measures showed significant improvements post-surgery (Cohen’s d [0.42, 1.05] p < 0.05), ID showed no significant differences. Moderate correlations were found between changes in some ID parameters and selected functional tests (r ≈|0.5|, p < 0.05). Responsiveness was solely found for the peak torque of knee extension at 180°/s on the operated side. Responsiveness is an often-overlooked psychometric property of outcome measurements. The findings suggest that ID may not be fully responsive to the construct of PF after TKA and THA, raising questions about its role and usefulness in this context and the need for more appropriate assessment methods. arthroplasty replacement hip replacement knee muscle strength physical functional performance rehabilitation responsiveness artroplastika zamenjava kolka zamenjava kolena mišična moč fizična funkcionalna zmogljivost rehabilitacija odzivnost true false true Angleški jezik Slovenski jezik Članek v reviji 2024-02-02 10:22:44 2024-02-02 10:22:46 2025-08-08 13:30:33 0000-00-00 00:00:00 2024 0 0 18 str. issue 3, art. 314 Vol. 12 Jan. 2024 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 615.82/.84:617.3 2227-9032 10.3390/healthcare12030314 183481347 Prufer-2024-Responsiveness-of-isokinetic-dynamo.pdf Prufer-2024-Responsiveness-of-isokinetic-dynamo.pdf 1 7A80627C2DBD0B218122259DA534563B aa7004cda6db2feb93979b1198e5a25abcebca61d3f9595e2f424675e16bb50c eb802c04-c1ac-11ee-9ac8-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180495 https://www.mdpi.com/2227-9032/12/3/314 1 a0a6298d-c1ac-11ee-9ac8-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180494 Zdravstvena fakulteta 0 0 0