During horizontal plane gait mechanics, the pelvis moves from which position at the beginning of stance to which position at the end of stance?

During horizontal plane gait mechanics, the pelvis moves from which position at the beginning of stance to which position at the end of stance?

• A. Depression to elevation
• B. Abduction to adduction
• C. Protraction to retraction
• D. Inversion to eversion

Answer: (C)

In gait, the pelvis rotates in the horizontal (transverse) plane. Protraction means the pelvis turns forward (anteriorly), while retraction means it turns backward (posteriorly). At the start of stance, the pelvis is protracted to help the leg advance over the stance limb. As stance continues toward its end, the pelvis rotates back into a more retracted position to stabilize the trunk and align with the moving limb for the transition to swing. The other options describe movements in other planes or of the foot, not horizontal-plane pelvis rotation. So the pelvis moves from protraction to retraction.

In gait, the pelvis rotates in the horizontal (transverse) plane. Protraction means the pelvis turns forward (anteriorly), while retraction means it turns backward (posteriorly). At the start of stance, the pelvis is protracted to help the leg advance over the stance limb. As stance continues toward its end, the pelvis rotates back into a more retracted position to stabilize the trunk and align with the moving limb for the transition to swing. The other options describe movements in other planes or of the foot, not horizontal-plane pelvis rotation. So the pelvis moves from protraction to retraction.