CFO Biomechanics & Gait Analysis

Question 1

During normal gait, the stance phase comprises approximately what percentage of the gait cycle?

Accepted Answer

60%

Answer

Stance phase normally accounts for approximately 60% of the gait cycle, while swing phase accounts for the remaining 40%.

Question 2

Which of the following best describes heel strike in normal gait?

Accepted Answer

The posterior lateral heel contacts the ground first

Answer

During normal heel strike, the posterior lateral aspect of the heel contacts the ground first, initiating the loading response.

Question 3

What is the normal range of subtalar joint motion required for efficient gait?

Accepted Answer

6–10 degrees

Answer

Approximately 6–10 degrees of subtalar joint motion (combined inversion and eversion) is required for efficient shock absorption and propulsion during gait.

Question 4

Which muscle is the primary decelerator of tibial advancement during the loading response of gait?

Accepted Answer

Tibialis anterior

Answer

The tibialis anterior eccentrically contracts during the loading response to control plantar flexion after heel strike, decelerating tibial advancement.

Question 5

The windlass mechanism during push-off primarily involves which structure?

Accepted Answer

Plantar fascia

Answer

The windlass mechanism involves the plantar fascia tightening as the toes dorsiflex during push-off, raising the longitudinal arch and supinating the foot to create a rigid lever for propulsion.

(CFO) Certified Fitter Orthotics Practice Test

(CFO) Certified Fitter Orthotics Practice Test

CFO Biomechanics & Gait Analysis