MPT Gait and Prosthetics 2

Question 1

Which phase of the gait cycle is typically reduced in stride length by a patient with significant hip flexion contracture?

Accepted Answer

Terminal stance

Answer

Hip flexion contracture reduces hip extension in terminal stance, causing the patient to prematurely advance off the stance limb and shorten the step length of the contralateral limb.

Question 2

A vaulting gait deviation (rising on the toes of the sound limb during prosthetic swing) is caused by:

Accepted Answer

Prosthesis being too long

Answer

Vaulting occurs when the prosthesis is too long, requiring the patient to rise on the toes of the sound limb during prosthetic swing phase to allow the prosthetic foot to clear the ground.

Question 3

In normal gait, the center of mass reaches its highest point during which phase?

Accepted Answer

Mid-stance

Answer

The center of mass reaches its highest vertical point during mid-stance (single-limb support), when the body vaults over the relatively straight stance limb like an inverted pendulum.

Question 4

Which prosthetic foot design is best suited for a highly active K4-level transtibial amputee returning to running?

Accepted Answer

Energy-storing and return carbon fiber foot

Answer

Carbon fiber energy-storing and return (ESR) feet are best suited for K4-level (high activity, sports) amputees. They store elastic energy during loading and return it during push-off, enabling running.

Question 5

Scissor gait, characterized by the legs crossing the midline during swing, is most commonly associated with:

Accepted Answer

Spastic diplegic cerebral palsy

Answer

Scissor gait is a hallmark of spastic diplegia (commonly seen in cerebral palsy) where bilateral hip adductor and flexor spasticity causes the legs to cross the midline during swing.

MPT - Master of Physical Therapy Practice Test

MPT - Master of Physical Therapy Practice Test

MPT Gait and Prosthetics 2