MPT Gait and Prosthetics

Question 1

Normal cadence for adults during comfortable walking is approximately:

Accepted Answer

100-120 steps per minute

Answer

60-80 steps per minute

Answer

130-150 steps per minute

Answer

80-95 steps per minute

Question 2

A transtibial (below-knee) amputee demonstrates excessive knee flexion during stance. The most likely prosthetic cause is:

Accepted Answer

Excessive plantar flexion of the prosthetic foot

Answer

Socket too large

Answer

Foot positioned too far anterior

Answer

Foot positioned too far posterior

Question 3

In the Rancho Los Amigos gait nomenclature, initial contact corresponds to which event in traditional gait terminology?

Accepted Answer

Heel strike

Answer

Toe-off

Answer

Foot flat

Answer

Push-off

Question 4

A patient with a transfemoral (above-knee) amputation displays a lateral trunk lean toward the prosthetic side during stance. The most likely cause is:

Accepted Answer

Hip abductor weakness on the residual limb side

Answer

Prosthetic knee is too stiff

Answer

Prosthetic socket is in excessive abduction

Answer

Foot is too wide

Question 5

Which component of a transfemoral prosthesis controls knee stability during the loading response phase?

Accepted Answer

Knee extension assist or polycentric mechanism

Answer

Pylon length

Answer

Foot dorsiflexion bumper

Answer

Socket suspension system

Question 6

The energy cost of walking increases most dramatically at what level of lower-limb amputation?

Accepted Answer

Transfemoral amputation

Answer

Toe amputation

Answer

Transtibial amputation

Answer

Symes amputation