PHTY210 Lecture Notes - Lecture 12: Ankle, Sagittal Plane, Kinematics
Document Summary
Pathological gait: ankle: normal ankle kinematics, within gait cycle, 2 periods of plantarflexion, 2 periods of dorsiflexion. Recall possible primary deviations that may occur at the ankle joint. Frontal plane: excessive eversion, eversion of the calcaneus or forefoot that exceeds normal for a particular phase, excessive inversion, inversion of the calcaneus or forefoot that exceeds neutral for a particular phase. Limited toe extension (rocker: less extension at the mtp joint than is normal for a particular phase. List the possible underlying causes for each primary deviation. Inadequate pf/excessive df: excessive eversion, excessive inversion. Describe the functional and biomechanical impact of the primary deviation throughout the gait cycle and explain the possible resulting secondary deviations(compensations) Impact of deviation: secondary deviations, excessive eversion. Impact of deviation: secondary deviations, initial contact loading response. Increased knee and hip flexion to provide shock absorption that is lacking at foot and ankle: mid stance, possibly increased knee and hip flexion to provide shock absorption, swing.
