《中国康复理论与实践》

《中国康复理论与实践》 ›› 2025, Vol. 31 ›› Issue (5): 613-620.doi: 10.3969/j.issn.1006-9771.2025.05.015

• 应用研究 • 上一篇    

基于矢量编码技术痉挛型脑性瘫痪儿童平地行走时的下肢协调性和变异性特征

陈传艺1, 齐刘心1, 李爱华2, 倪燕2, 孙威1, 王疆娜1()   

  1. 1.山东体育学院，山东济南市 250102
    2.济南医院，山东济南市 250013
  • 收稿日期:2024-10-22 修回日期:2025-03-10 出版日期:2025-05-25 发布日期:2025-05-26
  • 通讯作者: 王疆娜(1986-)，女，汉族，山东潍坊市人，硕士，副教授，主要研究方向：特殊人群运动与健康促进。E-mail： tsjywjn2018@126.com
  • 作者简介:陈传艺(1998-)，男，汉族，山东济南市人，硕士研究生，主要研究方向：运动生物力学。
  • 基金资助:
    1.国家自然科学基金项目(12402373);2.山东省自然科学基金项目(ZR2024MH341)

Lower limb coordination and variability in children with spastic cerebral palsy during flat ground walking: a vector coding technique study

CHEN Chuanyi1, QI Liuxin1, LI Aihua2, NI Yan2, SUN Wei1, WANG Jiangna1()   

  1. 1. Shandong Sport University, Ji'nan, Shandong 250102, China
    2. Ji'nan Hospital, Ji'nan, Shandong 250013, China
  • Received:2024-10-22 Revised:2025-03-10 Published:2025-05-25 Online:2025-05-26
  • Contact: WANG Jiangna, E-mail: tsjywjn2018@126.com
  • Supported by:
    National Natural Science Foundation of China(12402373);Shandong Natural Science Foundation(ZR2024MH341)

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摘要：

目的 采用矢量编码技术量化观察痉挛型脑瘫儿童在平地行走时的下肢协调性和协调变异性。
方法 2023年9月至12月，在济南市康复医院和济南市特殊教育学校选取痉挛型脑瘫儿童8例(脑瘫组)，社区不定向选取健康儿童8例(对照组)，以0.45 m/s的速度在跑步机上行走。采用Vicon三维动作捕捉系统采集下肢运动学数据，通过矢量编码技术量化患侧下肢关节间的时间和空间参数，计算关节间耦合角和耦合角变异性(CAV)。
结果 脑瘫组髋-膝关节耦合角在第一双支撑期和第二双支撑期大于对照组(|t| > 2.317, P < 0.05)；摆动期，髋-踝和膝-踝耦合角大于对照组(|t| > 2.346, P < 0.05)。髋-膝、髋-踝CAV均在第一双支撑期、单支撑期大于对照组(|t| > 2.454, P < 0.05)，在摆动期小于对照组(t > 2.560, P < 0.05)；膝-踝关节CAV在第二双支撑期、摆动期均大于对照组(|t| > 2.909, P < 0.05)。
结论 痉挛型脑瘫儿童行走时髋、膝、踝关节间在支撑期和摆动期均表现出更差的协调性，在支撑期表现出更大的变异性。

关键词: 痉挛型脑性瘫痪, 步态, 协调性, 矢量编码

Abstract:

Objective To quantify the lower limb coordination and coordination variability of children with spastic cerebral palsy (CP) during flat ground walking using vector coding technology.
Methods From September to December, 2023, eight children with spastic CP (patients) from Ji'nan Rehabilitation Hospital and Ji'nan Special Education School, and eight healthy children (controls) from communities walked on a treadmill at a speed of 0.45 m/s. Lower limb kinematic data were collected using Vicon, a three-dimensional motion capture system. Vector coding technology was used to quantify the temporal and spatial parameters of ipsilateral lower limb joints to calculate joint coupling angles and coupling angle variability (CAV).
Results In the first and second double support phase, the hip-knee coupling angle was significantly larger in the patients than in the controls (|t| > 2.317, P < 0.05). In the swing phase, the hip-ankle and knee-ankle coupling angles were significantly larger in the patients (|t| > 2.346, P < 0.05). In the first double support phase and the single support phase, CAV of the hip-knee and hip-ankle were significantly larger in the patients (|t| > 2.454, P < 0.05), and they were smaller in the swing phase (t > 2.560, P < 0.05). In the second double support phase and the swing phase, CAV of the knee-ankle was significantly larger in the patients (|t| > 2.909, P < 0.05).
Conclusion Coordination among hip, knee and ankle joints is poor for children with spastic CP during both the stance and swing phases of walking, and variability is more during the stance phase.

Key words: spastic cerebral palsy, gait, coordination, vector coding

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