Nagaya M
Department of Rehabilitation, Chubu National Hospital, Obu, Japan.
Arch Phys Med Rehabil. 1997 Jan;78(1):82-4. doi: 10.1016/s0003-9993(97)90015-0.
To predict the factors affecting the flexibility of a shoehorn-type ankle-foot orthosis (AFO) in dorsiflexion and plantarflexion.
Experimental assessment.
None.
The dorsiflexion and plantarflexion angles of the ankle joints of the AFOs versus applied force were measured.
The dorsiflexion and plantarflexion angles demonstrated significant negative linear correlations with the height of the AFO (p < .01), the height of the medial wall (p < .05), the height of the lateral wall (p < .01), the width of the narrowest area (p < .001), and the width of the ankle joint area (p < .001). The dorsiflexion angle also demonstrated a significant negative linear correlation with the curvature radius of the lateral trimline (p < .05) and the thickness of the plastic sheet (p < .05). Stepwise multiple regression analysis demonstrated that the width of the ankle joint area, the thickness of plastic sheet, and the height of the lateral wall significantly affected the dorsiflexion and plantarflexion angles (p < .001).
The major predictor of flexibility in dorsiflexion and plantarflexion is the width of the ankle joint area, and the second predictor is the thickness of the plastic sheet in dorsiflexion and the height of the lateral wall in plantarflexion.
预测影响鞋拔式踝足矫形器（AFO）背屈和跖屈灵活性的因素。
实验评估。
无。
测量AFO踝关节的背屈和跖屈角度与施加力的关系。
背屈和跖屈角度与AFO的高度（p <.01）、内侧壁高度（p <.05）、外侧壁高度（p <.01）、最窄区域宽度（p <.001）以及踝关节区域宽度（p <.001）呈显著负线性相关。背屈角度与外侧修剪线的曲率半径（p <.05）和塑料片厚度（p <.05）也呈显著负线性相关。逐步多元回归分析表明，踝关节区域宽度、塑料片厚度和外侧壁高度显著影响背屈和跖屈角度（p <.001）。
背屈和跖屈灵活性的主要预测因素是踝关节区域宽度，其次是背屈时塑料片的厚度和跖屈时外侧壁的高度。
