PRC Postural Assessment & Biomechanical Analysis 3

Question 1

When performing the Hruska Adduction Lift Test (HALT), what does a score of '1' on the right side indicate?

Accepted Answer

Minimal right hip adduction with significant trunk compensation

Answer

Full right hip adduction with abdominal wall activation

Answer

Right hip adduction with contralateral pelvic drop

Answer

Inability to lift the right leg off the table

Question 2

In PRI assessment, what does 'AF IR' stand for and what is its clinical significance?

Accepted Answer

Anterior Femoral Internal Rotation — the femur rotates inward relative to the acetabulum

Answer

Acetabular Femoral Internal Rotation — the acetabulum rotates inward on the femur

Answer

Axial Femoral Internal Rotation — rotation through the femoral shaft axis only

Answer

Anterior Force Internal Rotation — force vector driving internal rotation

Question 3

A patient in a left AIC + right BC + left PEC (Posterior Exterior Chain) pattern complex is assessed. Where would the clinician most likely find rib cage asymmetry?

Accepted Answer

Right rib flare with left thoracic depression and leftward rotation of lower thorax

Answer

Symmetric rib cage with no notable asymmetry

Answer

Bilateral rib flare with kyphotic thorax

Answer

Left rib flare with rightward thoracic rotation throughout

Question 4

During gait analysis using PRI principles, what is expected to occur at the right hip during left stance phase in a neutral pelvis?

Accepted Answer

Right hip should be in extension, abduction, and external rotation

Answer

Right hip should be in flexion, adduction, and internal rotation

Answer

Right hip should be in neutral with no rotation

Answer

Right hip should demonstrate maximal abduction

Question 5

What is the primary purpose of assessing the 'trunk shift' during a PRI postural examination?

Accepted Answer

To identify the direction the thorax has shifted relative to the pelvis, reflecting chain pattern

Answer

To measure lumbar lordosis angle

Answer

To assess quadratus lumborum length

Answer

To identify hip flexor tightness

Question 6

In PRI postural analysis, what does assessment of the scapular position reveal about thoracic and chain involvement?

Accepted Answer

Scapular abduction or adduction reflects thoracic rotation and chain influences on the shoulder girdle

Answer

Scapular winging always indicates serratus anterior weakness regardless of chain pattern

Answer

Scapular position is only relevant in shoulder pathology, not postural chains

Answer

Bilateral scapular retraction is always the treatment goal

Question 7

A clinician assesses cervical position during a PRI postural evaluation and finds the head is rotated left with right cervical sidebend. What chain pattern does this suggest?

Accepted Answer

Right Brachial Chain influence

Answer

Left Brachial Chain influence

Answer

Left AIC pattern without chain influence

Answer

Bilateral Posterior Mediastinal Trunk involvement