The effects of dynamic instability training on the postural control, balance and walking of stroke survivors
10.3760/cma.j.issn.0254-1424.2023.03.004
- VernacularTitle:动态失稳训练对脑卒中患者姿势控制能力、平衡与步行功能的影响
- Author:
Lianjie MA
1
;
Xudong GU
;
Yan LI
;
Jianming FU
;
Yunhai YAO
;
Linhua TAO
;
Liang LI
;
Ya SUN
;
Hua WU
Author Information
1. 浙江中医药大学，杭州 310053
- Keywords:
Stroke;
Postural control;
Balance;
Surface electromyography;
Walking ability
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2023;45(3):210-215
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe any effect of dynamic motor instability training on the balance and postural control of stroke survivors.Methods:Forty stroke survivors with poor balance were randomly divided into a control group and an observation group, each of 20. In addition to routine rehabilitation, the observation group was given 20 minutes of dynamic motor instability training, 5 days a week for 8 weeks, while the control group underwent routine rehabilitation for the same length of time. Before and after the intervention, surface electromyogram of the rectus femoris, biceps femoris, and erector spinae were recorded during perturbation. Activation time and the intensity of the anticipatory and complementary postural adjustments (APAs and CPAs) were also observed. Balance and lower limb motor functioning were assessed using the Berg balance scale (BBS), the Fugl-Meyer lower extremity assessment (FMA-LE), and GaitWatch analysis.Results:After the treatment the average activation time of the rectus femoris, biceps femoris in the affected side and those of the biceps femoris [(-84.31±5.74)s] and erector spinae in the intact side in APAs were all significantly shorter in the observation group than in the control group, while the average activation intensity of the rectus femoris and erector spinae was significantly greater. There was no significant difference in the activation intensity of each muscle group in CPAs after the treatment. After the intervention the average BBS score, FMA-LE score, stride length and walking speed of the observation group all were significantly better than the control group′s averages.Conclusions:Supplementing traditional rehabilitation training with dynamic motor instability training can further improve the posture control of stroke survivors and promote recovery of their balance and walking ability.
