PAS PAS Gait Analysis & Foot Mechanics 1

Question 1

Which phase of the gait cycle places the greatest demand on the plantar flexors for forward propulsion?

Accepted Answer

Terminal stance / toe-off

Answer

Terminal stance and toe-off require maximal plantar flexor activity to propel the body forward.

Question 2

Excessive pronation of the subtalar joint during gait most commonly contributes to which postural deviation?

Accepted Answer

Medial tibial rotation and genu valgum

Answer

Excessive subtalar pronation internally rotates the tibia, which transmits upward and contributes to medial knee collapse (genu valgum).

Question 3

A PAS specialist observes a client with a 'Trendelenburg gait.' Which muscle is the primary weakness responsible for this pattern?

Accepted Answer

Gluteus medius

Answer

Weakness of the gluteus medius allows the contralateral pelvis to drop during single-leg stance, producing a Trendelenburg gait.

Question 4

Which foot type is most associated with a rigid, supinated arch and increased lateral forefoot loading during gait?

Accepted Answer

Pes cavus

Answer

Pes cavus (high arch) is a rigid, supinated foot structure that concentrates pressure on the lateral forefoot and heel.

Question 5

During normal gait, what is the typical cadence range for a healthy adult?

Accepted Answer

100–120 steps per minute

Answer

Healthy adult cadence typically ranges from 100 to 120 steps per minute during comfortable self-selected walking.

(PAS) Postural Alignment Specialist Practice Test