Objective: To observe and analysis the effect of ankle foot orthosis(AFO) on lower extremity stability, weight loading ability and range of joint motion(ROM) of the knee and ankle during walking.

• 目的:观察和分析足下垂患者穿戴踝足支具(AFO)前后对下肢稳定性、负重能力、步行中膝、踝关节活动的影响。