Mechanisms of Abnormal Gait

Question 1

General Causes of Abnormal Gait

Answer 1

Decreased Joint Motion
- Contracture
- Rigid
- Joint stiffness
Weakness
Pain
Impaired Feedback
Impaired Motor Control

Question 2

Impaired Feedback

Answer 2

Proprioceptive: Joint posture sense
Vestibular: Balance
Sensory: Foot
Visual

Question 3

Impaired Motor Control

Answer 3

Lack of selective muscle control

Mass flexor/extensor patterns

Question 4

Spasticity

Answer 4

Response to stretch

Overaction of a muscle to passive stretch

Question 5

Penalties Related to Abnormal Gait

Answer 5

Decreased shock absorption
Excessive COM movement
Increased energy expenditure
Decreased preparation for swing (PSw)
Decreasing preparation for stance (TSw)
Decreased limb advancement (Swing)
Decreased forward progression (Stance)
Decreased stability
Decreased stride length
Decreased foot clearance
Increased soft tissue stress/strain