中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (6): 900-904.doi: 10.12307/2023.784

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

视觉反馈对慢性踝关节不稳者落地过程中生物力学的影响

章丽莉1,张兴来2,张  杰1,郑洁皎1   

  1. 1复旦大学附属华东医院,上海市   200040,2上海中医药大学附属岳阳中西医结合医院,上海市   200437
  • 收稿日期:2022-11-08 接受日期:2023-01-05 出版日期:2024-02-28 发布日期:2023-07-12
  • 通讯作者: 郑洁皎,教授,博士生导师,复旦大学附属华东医院,上海市 200040
  • 作者简介:章丽莉,女,1990年生,江苏省南通市人,汉族,2019年上海体育学院毕业,硕士,主要从事运动姿势控制障碍康复研究。
  • 基金资助:
    中枢神经系统疾病引发的姿势控制障碍精准康复策略的多中心临床研究(22Y31900200),项目参与人:郑洁皎,章丽莉

Effect of visual feedback on landing biomechanics in chronic ankle instability patients

Zhang Lili1, Zhang Xinglai2, Zhang Jie1, Zheng Jiejiao1   

  1. 1Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; 2Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
  • Received:2022-11-08 Accepted:2023-01-05 Online:2024-02-28 Published:2023-07-12
  • Contact: Zheng Jiejiao, Professor, Doctoral supervisor, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
  • About author:Zhang Lili, Master, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
  • Supported by:
    Multi-Center Clinical Study on Precise Rehabilitation Strategies for Posture Control Disorders Caused by Central Nervous System Diseases, No. 22Y31900200 (to ZJJ, ZLL [project participant])

摘要:


文题释义:

慢性踝关节不稳:泛指踝关节外侧韧带重复发生的不稳定导致受累踝关节反复扭伤的现象,其常见症状包括空虚、机械性不稳定、疼痛、肿胀、无力、反复扭伤以及功能性不稳定等。慢性踝关节不稳造成的踝关节反复扭伤可引发骨关节炎,严重者可引起关节僵硬和关节畸形。
落地试验:是通过模拟运动过程中的落地动作,利用人体仿真模拟观察踝关节损伤患者的踝关节运动及受力情况,分析受试者跳落动作过程中以及落地后动力学和运动学参数,进而探究落地缓冲过程中踝关节扭伤发生的机制。


背景:落地试验可以有效观察慢性踝关节不稳患者的下肢运动生物力学指标,分析影响慢性踝关节不稳姿势稳定性的平衡调节策略,以期为慢性踝关节不稳患者避免再次损伤以及损伤后临床康复提供有价值的参考依据。

目的:通过观察落地过程中睁眼和闭眼时慢性踝关节不稳患者的运动学和动力学指标,分析视觉对慢性踝关节不稳姿势稳定性的影响及平衡调节策略的变化。
方法:31例慢性踝关节不稳患者健、患侧腿分别在睁眼和闭眼条件下,从40 cm跳台单腿落地,采用三维运动捕捉系统采集落地过程中的动力学和运动学数据,配对t 检验比较健、患侧腿在两种条件下落地的差异性。

结果与结论:①动力学指标:闭眼时患侧踝关节前方、后方以及垂直方向地面反作用力峰值相对值大于睁眼条件下,且垂直方向地面反作用力峰值出现时间晚于睁眼时(P < 0.05);②运动学指标:在闭眼条件下,健、患侧腿膝触地时屈曲角度均大于睁眼条件下(P < 0.05),患侧膝、踝最大屈曲角度及前馈角度变化大于患侧睁眼条件下(P < 0.05),落地稳定时间较睁眼时延长(P < 0.05);③提示在去除视觉输入的条件下,慢性踝关节不稳者在落地过程中地面反作用力峰值增大、落地关节角度增大、维持姿势稳定所需的时间延长,加大了落地损伤的概率,视觉对慢性踝关节不稳患者平衡的维持起到前庭觉和本体感觉不能弥补的作用。

https://orcid.org/0000-0002-6514-043X (章丽莉) 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程

关键词: 踝关节不稳, 落地, 视觉, 生物力学, 平衡

Abstract:

BACKGROUND: The landing test can effectively observe the biomechanical indexes of the lower limbs of patients with chronic ankle instability, analyze the balance adjustment strategies that affect the stability of chronic ankle instability posture, and provide a valuable reference for chronic ankle instability patients to avoid re-injury and clinical rehabilitation after injury.  
OBJECTIVE: To analyze the effects of vision on the balance of chronic ankle instability and the changes in balance adjustment strategies by observing the kinematics and kinetics of chronic ankle instability patients during landing with and without vision.
METHODS: Totally 31 patients with chronic ankle instability landed on a single leg from a 40 cm platform with their eyes open and closed. The dynamic and kinematic data during the landing process were collected using a three-dimensional motion capture system. The difference in landing between the healthy and the ill side legs under the two conditions was compared by paired t-test.  
RESULTS AND CONCLUSION: (1) Dynamic indexes: The relative value of the peak ground reaction force in the front, rear and vertical directions of the affected ankle joint when eyes were closed was greater than that when eyes were open, and the peak ground reaction force in the vertical direction appeared later than that when eyes were open (P < 0.05). (2) Kinematics indexes: The flexion angle of the knee of the healthy and affected sides when touching the ground was greater under the condition of closed eyes than under the condition of open eyes (P < 0.05). The maximum flexion angle and feedforward angle of the affected knee and ankle were greater than those of the affected side with eyes open (P < 0.05). The time of landing stability was longer than that of eye opening (P < 0.05). (3) It is indicated that under the condition of removing visual input, the peak of ground reaction force increases, the contact angle joint increases, and the time to stabilization of chronic ankle instability is prolonged during landing in patients with chronic ankle instability, which increases the probability of landing injury. Visual maintenance of the balance of chronic ankle instability patients cannot compensate for the vestibular sense and proprioception.

Key words: ankle instability, landing, vision, biomechanics, balance

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