使用KINARM机器人外骨骼进行运动觉测量的评分者间信度。

Inter-rater reliability of kinesthetic measurements with the KINARM robotic exoskeleton.

作者信息

Semrau Jennifer A, Herter Troy M, Scott Stephen H, Dukelow Sean P

机构信息

Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.

Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.

出版信息

J Neuroeng Rehabil. 2017 May 22;14(1):42. doi: 10.1186/s12984-017-0260-z.

DOI:10.1186/s12984-017-0260-z

PMID:28532512

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5441068/

Abstract

BACKGROUND

Kinesthesia (sense of limb movement) has been extremely difficult to measure objectively, especially in individuals who have survived a stroke. The development of valid and reliable measurements for proprioception is important to developing a better understanding of proprioceptive impairments after stroke and their impact on the ability to perform daily activities. We recently developed a robotic task to evaluate kinesthetic deficits after stroke and found that the majority (~60%) of stroke survivors exhibit significant deficits in kinesthesia within the first 10 days post-stroke. Here we aim to determine the inter-rater reliability of this robotic kinesthetic matching task.

METHODS

Twenty-five neurologically intact control subjects and 15 individuals with first-time stroke were evaluated on a robotic kinesthetic matching task (KIN). Subjects sat in a robotic exoskeleton with their arms supported against gravity. In the KIN task, the robot moved the subjects' stroke-affected arm at a preset speed, direction and distance. As soon as subjects felt the robot begin to move their affected arm, they matched the robot movement with the unaffected arm. Subjects were tested in two sessions on the KIN task: initial session and then a second session (within an average of 18.2 ± 13.8 h of the initial session for stroke subjects), which were supervised by different technicians. The task was performed both with and without the use of vision in both sessions. We evaluated intra-class correlations of spatial and temporal parameters derived from the KIN task to determine the reliability of the robotic task.

RESULTS

We evaluated 8 spatial and temporal parameters that quantify kinesthetic behavior. We found that the parameters exhibited moderate to high intra-class correlations between the initial and retest conditions (Range, r-value = [0.53-0.97]).

CONCLUSIONS

The robotic KIN task exhibited good inter-rater reliability. This validates the KIN task as a reliable, objective method for quantifying kinesthesia after stroke.

摘要

背景

运动觉（肢体运动感觉）一直极难进行客观测量，尤其是在中风幸存者中。开发有效且可靠的本体感觉测量方法对于更好地理解中风后的本体感觉障碍及其对日常活动能力的影响至关重要。我们最近开发了一项机器人任务来评估中风后的运动觉缺陷，发现大多数（约60%）中风幸存者在中风后的前10天内存在明显的运动觉缺陷。在此，我们旨在确定这项机器人运动觉匹配任务的评分者间信度。

方法

对25名神经功能正常的对照受试者和15名首次中风的个体进行了机器人运动觉匹配任务（KIN）评估。受试者坐在机器人外骨骼中，手臂由机器人支撑以抵抗重力。在KIN任务中，机器人以预设的速度、方向和距离移动受试者中风侧的手臂。一旦受试者感觉到机器人开始移动其受影响的手臂，他们就用未受影响的手臂匹配机器人的动作。受试者在KIN任务中接受了两次测试：初始测试，然后是第二次测试（中风受试者在初始测试后平均18.2±13.8小时内进行），两次测试由不同的技术人员监督。在两次测试中，任务均在有视觉和无视觉的情况下进行。我们评估了从KIN任务中得出的空间和时间参数的组内相关性，以确定该机器人任务的信度。