SMS Postural Support and Positioning 2

Question 1

What is the 90-90-90 rule in seating?

Accepted Answer

Hips, knees, and ankles each at 90-degree angles

Answer

The 90-90-90 rule describes ideal seated alignment with hips, knees, and ankles each at approximately 90 degrees.

Question 2

A simulator is used during the seating evaluation primarily to:

Accepted Answer

Assess positioning tolerance and simulate equipment configurations before ordering

Answer

A seating simulator allows the clinician to trial different angles and support configurations to determine optimal positioning before ordering custom equipment.

Question 3

Which muscle group tightness most commonly contributes to anterior pelvic tilt in sitting?

Accepted Answer

Hip flexors

Answer

Tight hip flexors pull the pelvis anteriorly, causing anterior pelvic tilt and excessive lumbar lordosis.

Question 4

Pelvic obliquity in sitting is best described as:

Accepted Answer

One side of the pelvis higher than the other

Answer

Pelvic obliquity is a lateral tilt of the pelvis where one iliac crest is higher than the other in the frontal plane.

Question 5

When assessing a client's sitting balance, the SMS clinician should first evaluate:

Accepted Answer

Supported and unsupported sitting ability

Answer

Evaluating both supported and unsupported sitting balance determines the level of external postural support required from the seating system.

SMS - Certified Seating and Mobility Specialist Practice Test

SMS - Certified Seating and Mobility Specialist Practice Test

SMS Postural Support and Positioning 2