Department of Physical Therapy, Jeonju University, Jeonju-si, Jeonrabuk-do, South Korea.
Department of Physical Therapy, Sangji University, Wonju-si, South Korea.
J Geriatr Phys Ther. 2021;44(4):177-182. doi: 10.1519/JPT.0000000000000273.
Movement quality of the lower extremities is considered an indicator of functional status in older adults with knee osteoarthritis (OA), and visual assessment of movement quality during functional movement tests can identify movement dysfunction and predict factors associated with lower extremity injuries. This study investigated the intertester and intratester reliability of trained testers for functional movement tests in community-dwelling older adults with knee OA.
This study was a cross-sectional study. A total of 43 older adults with knee OA were recruited for this study and performed 2 functional movement tests: squat and step-down. Movement quality during the functional movement tests was visually rated in segmental (trunk, pelvic, knee, and foot) and overall regions and was scored from 0 (acceptable) to 3 (marked dysfunction). Percentage of agreement and weighted κ coefficients were used to explore the reliability between and within testers.
The intertester reliability of the functional movement tests showed weak to strong agreement (weighted κ values from 0.44 to 0.88); the percentage agreement ranged from 52.78% to 93.02%. The intratester reliability of the functional movement tests showed weak to strong agreement (weighted κ values from 0.57 to 0.88); the percentage agreement ranged from 69.77% to 93.02%.
Visual assessment of functional movement tests showed weak to strong intertester and intratester reliability to examine movement quality in community-dwelling older adults with knee OA. Thus, while it may be useful in a clinical setting to assess movement dysfunction segmentally and generally in older adults with knee OA; greater efforts would be needed to ensure high levels of agreement of functional movement tests.
下肢运动质量被认为是膝骨关节炎（OA）老年患者功能状态的一个指标，在功能性运动测试中对运动质量进行视觉评估可以识别运动功能障碍，并预测与下肢损伤相关的因素。本研究旨在调查经过培训的测试者在社区居住的膝骨关节炎老年患者中进行功能性运动测试的测试间和测试内可靠性。
这是一项横断面研究。共有 43 名膝骨关节炎老年患者参与了本研究，并进行了 2 项功能性运动测试：深蹲和单腿台阶下降。在功能性运动测试中，运动质量在节段（躯干、骨盆、膝盖和脚部）和整体区域进行了视觉评估，并从 0（可接受）到 3（明显功能障碍）进行评分。使用一致性百分比和加权κ系数来评估测试者之间和内部的可靠性。
功能性运动测试的测试间可靠性显示出弱到强的一致性（加权κ值从 0.44 到 0.88）；一致性百分比从 52.78%到 93.02%不等。功能性运动测试的测试内可靠性显示出弱到强的一致性（加权κ值从 0.57 到 0.88）；一致性百分比从 69.77%到 93.02%不等。
对功能性运动测试的视觉评估显示，在社区居住的膝骨关节炎老年患者中，测试间和测试内可靠性从弱到强，可用于检查运动质量。因此，虽然在临床环境中评估膝骨关节炎老年患者的节段性和总体运动功能障碍可能有用，但需要付出更大的努力来确保功能性运动测试的高度一致性。
