Analysis of plantar pressure for functional ankle instability
10.3969/j.issn.1006-9771.2022.10.013
- VernacularTitle:功能性踝关节不稳足底压力分析
- Author:
Jianguo WANG
1
;
Jia TANG
2
;
Jige DONG
2
;
Yaping CHEN
1
Author Information
1. Department of Rehabilitation, Beijing Tongren Hospital, Capital Medical University, Beijing 100176, China
2. Department of Rehabilitation Medicine, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
- Publication Type:Journal Article
- Keywords:
functional ankle instability;
plantar pressure;
stability
- From:
Chinese Journal of Rehabilitation Theory and Practice
2022;28(10):1217-1223
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo observe the distribution characteristics of plantar pressure of patients with functional ankle instability (FAI). MethodsFrom January to July, 2021, the Freestep plantar pressure analysis system was used to measure plantar pressure of 20 patients with FAI in Department of Rehabilitation, Beijing Tongren Hospital. The data beteen the healthy side and the affected side were compared. ResultsWhen standing with both feet and eyes open, the weight ratio of the forefoot load was less (t = 2.251, P = 0.036), and the weight ratio of the hindfoot load was more (t = 2.251, P = 0.036) in the affected side than in the healthy side. When standing with the affected foot and eyes open, the average longitudinal distance (Y) was more in the affected side than in the healthy side (t = 3.271, P < 0.01); when standing with the affected foot and eyes closed, the length of the ball, the area of the ellipse, the average speed, and the average Y were more in the affected side than in the healthy side (t > 3.140, P < 0.01). When walking, the force area and load of the medial heel were more (t > 2.260, P < 0.05), the maximum pressure and average pressure were significantly less (t > 5.005, P < 0.001), and the line increment of the pressure center and the ratio of foot gait line length/footprint length were significantly more (t > 20.567, P < 0.001) in the affected side than in the healthy side. The contribution of loads of both forefoot and hindfoot was significantly different from the health side (t = 2.153, P < 0.001). ConclusionFor patients with FAI, when standing with both feet, the center of gravity of the affected side is more unevenly distributed; when standing with the affected foot, the posture control stability is obviously weaker, especially when the eyes are closed; when walking, the dynamic stability of the affected side is worse.
