CFO Biomechanics & Gait Analysis 2

Question 1

A patient presents with an antalgic gait pattern. Which characteristic best identifies this gait deviation?

Accepted Answer

Shortened stance phase on the painful limb

Answer

Shortened swing phase on the painful limb

Answer

Increased cadence with normal step length

Answer

Exaggerated arm swing on the affected side

Question 2

What gait deviation is most directly caused by insufficient ankle dorsiflexion (foot equinus)?

Accepted Answer

Early heel rise and knee hyperextension in stance

Answer

Trendelenburg gait

Answer

Steppage gait

Answer

Circumduction of the contralateral limb

Question 3

Which orthotic intervention is most appropriate for a patient with excessive rearfoot pronation during gait?

Accepted Answer

Medial heel wedge with rearfoot post

Answer

Lateral heel wedge

Answer

Metatarsal pad

Answer

Forefoot valgus wedge

Question 4

The Trendelenburg sign is positive when which finding is observed during single-limb stance?

Accepted Answer

The pelvis drops on the swing limb side

Answer

The pelvis drops on the stance limb side

Answer

The trunk leans over the stance limb

Answer

The knee flexes excessively during loading

Question 5

What is the primary purpose of the metatarsal bar in orthotic device design related to gait biomechanics?

Accepted Answer

Transfer weight-bearing stress proximal to the metatarsal heads

Answer

Increase push-off power at the forefoot

Answer

Correct hallux valgus deformity

Answer

Limit subtalar inversion

Question 6

During normal walking, ground reaction force peaks at approximately how many times body weight?

Accepted Answer

1.1–1.2 times body weight

Answer

0.5–0.8 times body weight

Answer

1.5–2.0 times body weight

Answer

2.5–3.0 times body weight

Question 7

Steppage gait is a compensatory mechanism for which underlying deficit?

Accepted Answer

Foot drop due to weak or absent ankle dorsiflexion

Answer

Hip extensor weakness

Answer

Knee flexion contracture

Answer

Excessive ankle plantarflexion strength