Integrative Neuroscience Group, SMI®, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.
Faculty of Electrical Engineering, University of Belgrade, Belgrade, Serbia.
Med Biol Eng Comput. 2017 Nov;55(11):1927-1935. doi: 10.1007/s11517-017-1640-z. Epub 2017 Mar 25.
The present paper describes the design and test of a low-cost Microsoft Kinect-based system for delivering adaptive visual feedback to stroke patients during the execution of an upper limb exercise. Eleven sub-acute stroke patients with varying degrees of upper limb function were recruited. Each subject participated in a control session (repeated twice) and a feedback session (repeated twice). In each session, the subjects were presented with a rectangular pattern displayed on a vertical mounted monitor embedded in the table in front of the patient. The subjects were asked to move a marker inside the rectangular pattern by using their most affected hand. During the feedback session, the thickness of the rectangular pattern was changed according to the performance of the subject, and the color of the marker changed according to its position, thereby guiding the subject's movements. In the control session, the thickness of the rectangular pattern and the color of the marker did not change. The results showed that the movement similarity and smoothness was higher in the feedback session than in the control session while the duration of the movement was longer. The present study showed that adaptive visual feedback delivered by use of the Kinect sensor can increase the similarity and smoothness of upper limb movement in stroke patients.
本文描述了一种基于微软 Kinect 的低成本系统的设计和测试，该系统可在执行上肢运动期间为中风患者提供自适应视觉反馈。招募了 11 名上肢功能不同程度受损的亚急性中风患者。每位患者参与了一个对照（重复两次）和一个反馈（重复两次）会话。在每个会话中，将一个矩形图案显示在嵌入在患者前方桌子上的垂直安装的监视器上，要求患者使用最受影响的手在矩形图案内移动一个标记。在反馈会话中，根据患者的表现改变矩形图案的厚度，并且根据其位置改变标记的颜色，从而指导患者的运动。在对照会话中，矩形图案的厚度和标记的颜色不会改变。结果表明，在反馈会话中，运动的相似性和流畅性高于对照会话，而运动的持续时间更长。本研究表明，使用 Kinect 传感器提供的自适应视觉反馈可以增加中风患者上肢运动的相似性和流畅性。
