CMC ATP Seating & Mobility Assessment 2

Question 1

During a mat assessment for a wheelchair user with spinal cord injury, the ATP finds a flexible pelvic obliquity. What is the MOST appropriate intervention?

Accepted Answer

Use a solid seat insert with a wedge to accommodate the drop side

Answer

A flexible obliquity can often be accommodated using a wedge under the lower side to level the pelvis and improve alignment.

Question 2

Which muscle group weakness most commonly contributes to posterior pelvic tilt in seated wheelchair users?

Accepted Answer

Hip extensors and abdominals

Answer

Weak hip extensors and abdominals allow the pelvis to rotate posteriorly, causing a sacral sitting posture.

Question 3

A client presents with high muscle tone and extensor thrust. Which seating intervention is MOST likely to reduce the thrust?

Accepted Answer

Increasing seat-to-back angle to open hip angle beyond 90 degrees

Answer

Opening the hip angle beyond 90 degrees can reduce extensor tone by inhibiting the extensor thrust reflex pattern.

Question 4

What does the term 'windswept deformity' describe in the context of seating assessment?

Accepted Answer

Asymmetrical hip rotation with both femurs displaced to one side

Answer

Windswept deformity refers to one hip in adduction/internal rotation while the other is in abduction/external rotation, with both femurs shifted to one side.

Question 5

When measuring seat depth for a wheelchair, what landmark is used as the posterior reference point?

Accepted Answer

Ischial tuberosities

Answer

Seat depth is measured from the ischial tuberosities to the popliteal fossa, minus 1–2 inches clearance.

(CMC) Certified Mobility Consultant Practice Test

(CMC) Certified Mobility Consultant Practice Test

CMC ATP Seating & Mobility Assessment 2