《中国康复理论与实践》 ›› 2019, Vol. 25 ›› Issue (2): 217-223.doi: 10.3969/j.issn.1006-9771.2019.02.017

• 临床研究 • 上一篇    下一篇

实时视觉轨迹反馈对上肢运动学习的影响

李娜1,2,3, 崔志琴1, 施长城2, 左国坤2,3   

  1. 1. 中北大学,山西太原市 030051
    2. 中国科学院宁波材料技术与工程研究所,慈溪生物医学工程研究所,浙江宁波市 315399
    3. 中国科学院宁波材料技术与工程研究所,先进制造技术研究所,浙江宁波市 315201
  • 收稿日期:2018-12-05 修回日期:2019-01-29 出版日期:2019-02-25 发布日期:2019-04-01
  • 通讯作者: 左国坤、施长城。E-mail: moonstone@nimte.ac.cn(左国坤); changchengshi@nimte.ac.cn(施长城)
  • 作者简介:李娜(1994-),女,汉族,山西晋中市人,硕士研究生,主要研究方向:康复工程。
  • 基金资助:
    1.国家自然科学基金项目(No. 11504372);2.宁波市社会发展重大科技专项(No. 2016C11021;

Effect of Real-time Visual Trajectory Feedback on Upper Limb Movement Learning

LI Na1, 2, 3, CUI Zhi-qin1, SHI Chang-cheng2, ZUO Guo-kun2, 3   

  1. 1. North University of China, Taiyuan, Shanxi 030051, China
    2. Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315399, China
    3. Institute of Advanced Manufacturing Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
  • Received:2018-12-05 Revised:2019-01-29 Published:2019-02-25 Online:2019-04-01
  • Contact: ZUO Guo-kun, SHI Chang-cheng. E-mail: moonstone@nimte.ac.cn (ZUO Guo-kun); changchengshi@nimte.ac.cn (SHI Chang-cheng)
  • Supported by:
    National Natural Science Foundation of China (No. 11504372), Major Scientific and Technological Projects for Social Development in Ningbo City (No. 2016C11021; No. 20181ZDYF020153) and Key Research and Development Program of Zhejiang (No. 2019C03090)

摘要: 目的 探究健康志愿者使用康复机器人进行上肢画圆运动中实时视觉轨迹反馈对于志愿者运动学习能力的影响。方法 2018年7至9月,右利手健康志愿者24例按运动能力基准水平测试分为两组,一组包含视觉、成绩和实时轨迹三种反馈(V+KP+KR组),另一组仅包含视觉和成绩两种反馈(V+KR组),两组均进行各自不同条件下的顺时针画圆任务训练,每节20次,共5节,3 d后进行1节保持测试。通过设计的圆度偏移量(RS)和完成时间两个参数对两组运动过程进行评估。结果 两因素重复测量方差分析显示,RS值组间和组内均存在交互作用(F = 6.029, P < 0.001);分析组间单独效应,除第5节训练外(F = 8.775, P = 0.658),V+KP+KR组RS值均显著高于V+KR组(F > 13.126, P < 0.001);分析组内单独效应,两组组内都有非常高度显著性差异(F > 12.465, P < 0.001)。对于完成时间,组间和组内不存在交互作用(F = 1.606, P = 0.228),组间主效应不显著(F = 0.55, P = 0.477),组内主效应显著(F = 3.95, P = 0.031)。结论 实时轨迹反馈可以帮助志愿者在运动学习早期阶段快速掌握运动任务要领,从而帮助其提升新任务的快速学习能力,但在运动学习中后期对于运动学习能力的提升效果不显著。志愿者在运动学习中后期对于实时轨迹反馈的依赖性逐渐减少,进而更加依靠运动本体感觉来完成任务。

关键词: 上肢运动学习, 上肢运动康复训练, 视觉反馈, 结果反馈, 时轨迹反馈

Abstract: Objective To explore the effect of real-time visual trajectory feedback on the motor learning ability of healthy volunteers during upper limb circle-drawing movements by using rehabilitation robots. Methods From July to September, 2018, 24 right-handed healthy volunteers were divided into two groups according to the baseline level of motor ability, one group received three kinds of feedbacks including visual, result and real-time trajectory feedbacks (V+KP+KR group), and the other group only received two kinds of feedbacks including visual and performance (V+KR group). Both groups were trained in clockwise circle drawing task under different conditions for five sessions, 20 times per session, and then underwent one session of maintenance test after three days. The motor learning processes of two groups were evaluated and analyzed by two parameters including roundness score and completion time. Results By using two-factor repeated measures variance analysis, it was found that there were intergroup and intragroup interactions (F = 6.029, P < 0.001). The intergroup individual effects showed that except for the fifth training section (F = 8.775, P = 0.658), the values of roundness score in other sessions were higher in V+KP+KR group than in V+KR group (F > 13.126, P < 0.001). The intragroup individual effects showed that there were significant differences among sessions in both groups (F > 12.465, P < 0.001). For completion time, there was no intergroup and intragroup interactions (F = 1.606, P = 0.228), the intergroup main effect was not significant (F = 0.55, P = 0.477), and the intragroup main effect was significant (F = 3.95, P = 0.031). Conclusion Real-time trajectory feedback can help volunteers quickly understand the essentials of motor tasks at the early stage of motor learning, thus helping them to improve the fast learning ability of new tasks, but the improvement effect on motor learning during middle and late stages is not obvious. The dependence of volunteers on real-time trajectory feedback gradually decreases in the middle and later stages of motor learning, and they might rely on proprioception to complete tasks.

Key words: upper limb motor learning, upper limb motor rehabilitation training, visual feedback, knowledge of results, real-time trajectory feedback

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