Pelvic motion in the frontal plane includes which movement pattern?

Pelvic motion in the frontal plane includes which movement pattern?

• A. Only Protraction and Retraction
• B. Only Internal and External Rotation
• C. Pelvic Elevation and Pelvic Drop
• D. Only Plantarflexion and Dorsiflexion

Answer: (C)

Movement in the frontal plane is the pelvis tilting side to side as a whole, like a lateral tilt. The pattern described—pelvic elevation on one side and pelvic drop on the other—captures this side-to-side tilt. Protraction and retraction are forward-backward shifts in the horizontal/axial sense, internal and external rotation occur around a vertical axis in the transverse plane, and plantarflexion–dorsiflexion are movements at the ankle in the sagittal plane. So the elevating and dropping of the pelvis best fits the frontal-plane motion.

Movement in the frontal plane is the pelvis tilting side to side as a whole, like a lateral tilt. The pattern described—pelvic elevation on one side and pelvic drop on the other—captures this side-to-side tilt. Protraction and retraction are forward-backward shifts in the horizontal/axial sense, internal and external rotation occur around a vertical axis in the transverse plane, and plantarflexion–dorsiflexion are movements at the ankle in the sagittal plane. So the elevating and dropping of the pelvis best fits the frontal-plane motion.