Foot drop is defined as what?

Foot drop is defined as what?

• A. Inability to dorsiflex the ankle during swing phase
• B. Inability to plantarflex the ankle during stance
• C. Inability to invert the foot
• D. Inability to evert the foot

Answer: (A)

Foot drop means you can’t dorsiflex the ankle, especially during the swing phase of walking. Dorsiflexion is lifting the front of the foot toward the shin, which is crucial for clearing the ground as you step. When the dorsiflexors (like the tibialis anterior) are weak or nerve supply is disrupted, the foot stays pointed downward, causing toe drag and a compensatory high-stepping gait. Plantarflexion, by contrast, is the downward pointing of the toes during push-off in stance, which is a different action. Inversion and eversion involve turning the sole of the foot inward or outward and are not the movements used to define foot drop. So the key idea is the loss of ability to lift the foot upward during the swing phase.

Foot drop means you can’t dorsiflex the ankle, especially during the swing phase of walking. Dorsiflexion is lifting the front of the foot toward the shin, which is crucial for clearing the ground as you step. When the dorsiflexors (like the tibialis anterior) are weak or nerve supply is disrupted, the foot stays pointed downward, causing toe drag and a compensatory high-stepping gait.

Plantarflexion, by contrast, is the downward pointing of the toes during push-off in stance, which is a different action. Inversion and eversion involve turning the sole of the foot inward or outward and are not the movements used to define foot drop. So the key idea is the loss of ability to lift the foot upward during the swing phase.