Gait analysis of post-stroke hemiplegic patients based on knee angle measurement device

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Jun.2023, Vol.46 No.6: 767-773

DOI: 10.3969/j.issn.1003-5060.2023.06.008

Authors

ZHANG Jian $ ^{1} $, DU Mingjia $ ^{1} $, MU Jingsong $ ^{2} $, ZHU Zongjun $ ^{3} $, WANG Yong $ ^{1} $

(1. School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China; 2. Department of Rehabilitation Medicine, Anhui Provincial Hospital, Hefei 230036, China; 3. Department of Acupuncture and Rehabilitation, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, China)

Abstract and Keywords

Abstract: In order to explore the relationship between abnormal gait and knee angle in post-stroke hemiplegic patients, the gait parameters of eight patients and six healthy people were studied. Firstly, the self-developed knee angle measurement device was used to collect the lower extremity knee angle in hemiplegic patients and healthy people, and the difference in parameters between the two groups was analyzed and compared. The results indicate that the main reason of gait abnormality in patients is that the knee joint spasm appears when the affected limb is flexed, showing the unsmooth dynamic curve of knee angle, and the smaller range of knee angle movement and the slower gait speed compared with those of healthy people. Some patients have knee extension phenomena. A combination of knee angle measurement device and low frequency pulse electrical stimulator was proposed to improve the abnormal gait in post-stroke hemiplegic patients. The rehabilitation training results show that the knee angle measurement device can be used not only for gait analysis, but also for the rehabilitation and spasticity evaluation of abnormal gait.

Keywords: joint angle; stroke; hemiplegia; gait analysis; spasticity; electrical stimulation

作者信息

张健 $ ^{1} $，杜明家 $ ^{1} $，穆景颂 $ ^{2} $，朱宗俊 $ ^{3} $，王勇 $ ^{1} $

(1. 合肥工业大学机械工程学院, 安徽合肥 230009; 2. 安徽省立医院康复医学科, 安徽合肥 230036; 3. 安徽中医药大学第一附属医院针灸康复科, 安徽合肥 230031)

摘要和关键词

摘要: 为探究脑卒中偏瘫患者异常步态和膝关节角度的关系,文章对8名患者和6名正常人的步态参数进行研究。利用自行研制的膝关节角度测量装置采集偏瘫患者和正常人步行时下肢膝关节角度,分析对比2组参数的差异;在此基础上提出膝关节角度测量装置与低频脉冲电刺激仪相结合的方法改善脑卒中偏瘫患者的异常步态。参数分析结果表明,患者步态异常的主要原因是患侧肢体进行屈膝动作时膝关节会出现痉挛状态,表现为患者膝关节角度动态变化曲线不平滑,膝关节角度活动范围和步速小于正常人,部分患者具有膝过伸的现象;患者康复训练结果表明,膝关节角度测量装置不仅可以用于步态分析,还可与其他装置结合用于异常步态的康复和痉挛等级评估。

关键词: 关节角度；脑卒中；偏瘫；步态分析；痉挛状态；电刺激

Funding

科技部中小企业创新基金资助项目（11C26213402042）；合肥工业大学应用培育计划资助项目（JZ2016YYP0066）

合肥工业大学学报(自然科学版)

Navigation