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Pathological Gait. Excessive Plantarflexion. Causes Triceps surae contracture Triceps surae spasticity Pre-tibial weakness Voluntary/compensatory 2 0 weak quadriceps. Loading Response Deviations. FF contact sustained. FF contact foot flat (rigid ankle) knee hyperextension.
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Excessive Plantarflexion Causes • Triceps surae contracture • Triceps surae spasticity • Pre-tibial weakness • Voluntary/compensatory 20 weak quadriceps
Loading Response Deviations FF contact sustained FF contact foot flat (rigid ankle) knee hyperextension FF contact rapid foot flat (flexible ankle) FF = fore foot
Midstance Deviations Foot flat w/ restrained tibia Fwd. trunk lean, short contralateral step Premature heel rise
Terminal Stance Deviations Pelvic obliquity high on side of deviation Excessive heel rise
Mid Swing Deviations Compensatory hip and/or knee flexion Toe Drag
Excessive Dorsiflexion • Weak triceps surae • Ankle joint fusion at neutral • Excessive knee flexion
Loading Response Deviations Higher heel rocker knee quad demand
Loading Response Deviations 20 Rigid AFO Rigid AFO knee and hip flexion
Terminal Stance Deviations Prolonged heel contact knee w/ heel rise OR
Pre Swing Deviations Sustained heel contact plantarflexion
Inadequate Knee Flexion / Excessive Extension • Quadriceps weakness • Pain • Quadriceps spasticity • Excessive ankle plantarflexion
Pre Swing and Initial Swing ankle dorsiflexion w/ prolonged heel contact Toe Drag
Midstance Retraction of tibia (soleus) and femur (gluteus max) when knee lacks hyperextension range
Inadequate knee flexion 20 excessive plantarflexion Overall disruption of normal coordination between the knee and ankle
Inadequate Knee Extension / Excessive Knee Flexion Causes • Hamstring spasticity • Knee flexion contracture • Soleus weakness • Excessive ankle plantarflexion
Excessive Knee Flexion - Loading Response Resulting in ankle dorsiflexion
Excessive Knee Flexion - Midswing As a compensation for ankle plantarflexion
Inadequate Knee Extension – Midstance and Terminal Stance Accompanied w/ ankle dorsiflexion limb and body advancement
Inadequate Knee Extension – Terminal Swing Loss of terminal reach
Inadequate Hip Extension – Excessive Hip Flexion • Hip flexion contracture • Iliotibial band contracture • Hip flexor spasticity • Pain • Voluntary/Compensatory
Inadequate Hip Extension – TSt Contracture step length and body advancement
Excessive Hip Flexion - MSw Compensation for ankle plantarflexion
Inadequate Hip Flexion • Hip flexor weakness • Hip joint arthrodesis
Inadequate Hip Flexion - TSw Rapid hip / Rapid hip Compensation for weak quadriceps that cannot extend the knee (flaccid knee)
Compensations for Inadequate Hip Flexion – PSw/ISw Compensatory posterior pelvic tilt
Compensations for Inadequate Hip Flexion – PSw/ISw Voluntary excessive (magnitude & velocity) knee flexion
Excessive Hip Adduction Causes: • Ipsilateral abductor weakness • Adduction contracture or spasticity • Using adductors as hip flexors • Contralateral hip abduction contracture
Deviations Swing “Scissor Gait” Combined hip & IR
Deviations 20 adductor contracture or spasticity 20 adductors used as hip flexors 20 glute med weakness
Excessive Hip Abduction Causes • Ipsilateral abduction contracture • Contralateral adduction contracture • Scoliosis w/ pelvic obliquity
Deviations Compensation for inadequate knee flexion 20 contralateral abduction or ipsilateral adduction contracture
Excessive Hip External Rotation Causes • Gluteus maximus overactivity • Excessive ankle plantarflexion
Excessive Hip Internal Rotation Causes • Medial hamstring overactivity • Adductor overactivity • Anterior abductor overactivity • Quadriceps weakness