Abnormal Mobility Quiz

What is the primary purpose of gait classification systems according to the Introduction #3?

• To diagnose health conditions

• To organize individuals into homogeneous groups

• To treat mobility limitations

• To identify body structures and functions

Which of the following is NOT listed as a primary pathophysiologic mechanism producing disordered gait?

• Paresis

• Spasticity

• Loss of selectivity in motor output

• Enhanced neural connectivity

What is the primary contributor to disordered gait in the context of paresis/weakness?

• Increased muscle strength

• Reduced ability to generate force

• Improved discharge frequency of motor neurons

• Enhanced neuromuscular coordination

During which phase of gait do the hip flexors play a significant role?

• Stance phase

• Swing phase

• Loading phase

• Midstance phase

Which muscle group has a significant reduction in muscle activity associated with paresis/weakness?

• Biceps

• Plantarflexors

• Deltoids

• Abductors

What difficulty is associated with the quadriceps in the context of paresis/weakness?

• Controlling knee extension during swing phase

• Controlling knee flexion during loading and midstance

• Increasing knee stability during the stance phase

• Decreasing knee mobility during the swing phase

What is a common consequence of weakness in the hip extensors?

• Increased gait speed

• Decreased trunk stability

• Improved control of movement

• Decreased pelvic tilt

What gait abnormality is associated with weakness in the hip abductors?

• Spastic gait

• Trendelenburg gait

• Ataxic gait

• Antalgic gait

Weakness in the hip muscles primarily affects which aspect of gait?

• Arm swing

• Step length

• Gait speed

• Foot clearance

Loss of which type of muscle contractions affects control of movement in paresis/weakness?

• Isometric and isotonic contractions

• Eccentric and concentric contractions

• Isokinetic and reactive contractions

• Plyometric and static contractions