新设备与长柄量角器评估膝关节本体感觉的重测信度比较。

Test-Retest Reliability of a New Device Versus a Long-Arm Goniometer to Evaluate Knee Proprioception.

出版信息

J Sport Rehabil. 2022 Mar 1;31(3):368-373. doi: 10.1123/jsr.2021-0146. Epub 2021 Nov 15.

DOI:10.1123/jsr.2021-0146

Abstract

CONTEXT

Many methods used to evaluate knee proprioception have shortcomings that limit their use in clinical settings. Based on an inexpensive 3D camera, a new portable device was recently used to evaluate the joint position sense (JPS) of the knee joint. However, the test-retest reliability of the new method remains unclear. This study aimed to evaluate the test-retest reliability of the new device and a long-arm goniometer for assessing knee JPS, and to compare the variability of the 2 methods.

DESIGN

Prospective observational study of the test-retest reliability of knee JPS measurements.

METHODS

Twenty-one healthy adults were tested in 2 sessions with a 1-week interval. Three target knee flexion angles (30°, 45°, and 60°) were reproduced in each session. Target and reproduced angles were measured with both methods. Intraclass correlation coefficients, standard error of the measurement, and Bland-Altman plots were used to quantify test-retest reliability. Paired t tests were used to compare knee JPS (absolute error of the target-reproduced angle) between the methods.

RESULTS

The new device (good to excellent intraclass correlation coefficients .74-.80; standard error of the measurement 0.52°-0.61°) demonstrated better test-retest reliability than the goniometer (poor to fair intraclass correlation coefficients .23-.43; standard error of the measurement 0.89°-2.07°) and better test-retest agreement (respective mean differences for the 30°, 45°, and 60° knee angles: 0.11°, 0.13°, and 0.41° for the new system; 0.84°, 1.52°, and 1.18° for the goniometer). The measurements (absolute errors of the target-reproduced angles) with the goniometer were significantly greater than those with the new device (P < .05); the SDs of repeated measurements with the goniometer (1.50°-2.41°) were greater than with the new device (1.08°-1.38°).

CONCLUSIONS

Given that the new device has good reliability and sufficient precision, it is the better alternative for evaluating knee JPS. Goniometers should be used with caution to assess knee JPS.

摘要

背景

许多用于评估膝关节本体感觉的方法都存在局限性，限制了它们在临床环境中的使用。最近，一种基于廉价的 3D 相机的新型便携式设备被用于评估膝关节的关节位置觉（JPS）。然而，新方法的测试-重测信度尚不清楚。本研究旨在评估新设备和长臂量角器评估膝关节 JPS 的测试-重测信度，并比较两种方法的可变性。

设计

膝关节 JPS 测量的测试-重测可靠性的前瞻性观察研究。

方法

21 名健康成年人在 2 个测试阶段进行测试，间隔 1 周。在每个测试阶段，三个目标膝关节屈曲角度（30°、45°和 60°）都进行了重复。使用两种方法测量目标和重复的角度。使用组内相关系数、测量标准差和 Bland-Altman 图来量化测试-重测可靠性。使用配对 t 检验比较两种方法的膝关节 JPS（目标-重复角度的绝对误差）。

结果

新设备（组内相关系数良好至优秀，.74-.80；测量标准差 0.52°-0.61°）的测试-重测可靠性优于量角器（组内相关系数差至一般，.23-.43；测量标准差 0.89°-2.07°），且测试-重测一致性更好（30°、45°和 60°膝关节角度的各自平均差异，新系统分别为 0.11°、0.13°和 0.41°；量角器分别为 0.84°、1.52°和 1.18°）。量角器的测量值（目标-重复角度的绝对误差）明显大于新设备（P <.05）；量角器的重复测量标准差（1.50°-2.41°）大于新设备（1.08°-1.38°）。