Pathological and other abnormal gaits

15 important questions on Pathological and other abnormal gaits

What are the four accomplishments in order to walk normal?

1. Each leg must be able to support the body
2. Balance must be maintained
3. Swinging leg must be able to advance to a position where it can take over supporting role
4. Sufficient power must be provided to propel forwards.

What are the two reasons for pathological gait?

1. The subject has no choice
2. The movement is a compensation.

Why is there lateral trunk bending?

1. reduce forces in the abductor muscle and hip joint during single leg stance
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What are probable causes for lateral trunk bending?

1. Painful hip
2. Hip abductor weakness
3. Abnormal hip joint
4. Wide walking base
5. Unequal leg length
6. other causes

How is anterior trunk bending possible?

1. Weak knee extensors, bending the trunk will ensure an external extension moment instead of flexion. Which cannot be compensated with weak extensors
2. Hip extensor weakness
3. Hip flexion contracture

Why would someone have posterior trunk bending?

1. to compensate for ineffective hip extensors, by moving trunk backwards no external hip flexion moment is created,
2. Or to propel leg forwards->weak flexors, which makes it difficult to accelerate femur forwards
3. If there is no movement possible in either knee or hip this can also be used.

What are commons solutions for inequal leg length?

Circumduction
Hip hiking->swing phase leg is lifted by raising pelvis
Steppage->exaggerated hip and knee flexion
Vaulting->stance phase legs on toes

What are the three causes for abnormal hip rotation?

1 Problem with muscles producing hip rotation
2. A fault in the way the foot makes contact with the ground
3. As a compensatory movement to overcome some other problem.

What is a common cause of rotation?

Imbalance between medial and lateral hamstrings.

What are causes of excessive knee extension?

Quadriceps weakness

Causes of excessive knee flexion?

Flexion contracture in knee or hip
Compensatory
Prevention of plantarflexion during loading response.

What is the consequence of inadadequate dorsiflexion control?

The foot wont roll but slap on the ground.
Also active during swing for toe clearance, so the toe will drag

What is the main cause of insufficient pushoff?

Problem with triceps surae or achilles tendon. Like weakness or paralysis

What are the causes of an abnormal walking base?

Deformity
Instability and fear of falling
Narrow walking base->Adduction deformity in hip or knee

Which three classifications of walking aids are there?

Canes crutches and frames

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