Xu Guang-qing, Lan Yue, Huang Dong-feng, Chen Zheng-hong, Ding Ming-hui
Department of Rehabilitation Medicine, Sun Yat-Sen University, Guangzhou 510080, China.
Zhonghua Yi Xue Za Zhi. 2011 Apr 5;91(13):890-3.
To quantitatively analyze the effects of ankle-foot orthosis (AFO) on gait stability and explore its use for walking capacity, gait stability and balance control in post-stroke patients.
A total of 25 inpatients with prior chronic hemiparesis from stroke who could walk at least 10 meters without assistance were recruited. The maximal walking speed and gait asymmetry index were examined by a motion analysis system. Functional balance was assessed by the Functional Ambulation Categories, Berg Balance Scale and Five-Times-Sit-to-Stand Test.
AFO had positive effects on the hemiplegic gait parameters of improving walking speed, gait stability and functional balance (P < 0.01). Pair wise comparisons suggested that there were significant differences in the maximal walking speed, Functional Ambulation Categories and gait asymmetry index after an immediate use of AFO (P < 0.05). At Week 4, there were significant differences in the parameters of walking speed, gait asymmetry index and functional balance control (P < 0.01).
The use of AFO may compensate the instability of gait and balance. Functional tests improve significantly with orthosis.
定量分析踝足矫形器（AFO）对步态稳定性的影响，并探讨其在脑卒中后患者步行能力、步态稳定性及平衡控制方面的应用。
共招募25例有慢性偏瘫病史且能在无辅助下至少行走10米的脑卒中住院患者。通过运动分析系统检测最大步行速度和步态不对称指数。采用功能性步行分级、伯格平衡量表和五次坐立试验评估功能平衡。
AFO对偏瘫步态参数有积极影响，可提高步行速度、步态稳定性和功能平衡（P < 0.01）。两两比较表明，立即使用AFO后，最大步行速度、功能性步行分级和步态不对称指数有显著差异（P < 0.05）。在第4周时，步行速度、步态不对称指数和功能平衡控制参数有显著差异（P < 0.01）。
使用AFO可补偿步态和平衡的不稳定性。使用矫形器后功能测试有显著改善。
