First, let me share my personal view on hip rotation—I don’t think it needs to be done deliberately.

The issue of hip rotation actually revolves around how to actively steer the board through turns. Steering the board means that during the upper part of the turn, also known as the high C, your body should lead the skis. What it means for the body to lead the skis is that the upper body leads the skis. And the boundary between the upper and lower body is the hips.

When making a big turn, having the body lead the skis means the upper body should rotate first—the head, shoulders, and hips all turn in the direction you want to go—then guide the lower body and skis to follow (note, this doesn’t mean the lower body is entirely driven by the upper body; what’s truly important is that the upper body rotates before the lower body). Leading with the body not only involves rotating but also shifting your weight forward. Therefore, when initiating the turn, your body should lean toward the inside front of the turn. Leaning toward the side-front already incorporates turning the head, shoulders, and hips, shifting the weight forward, and angling the center of gravity—all in one motion. So, I believe there’s no need to deliberately rotate your hips. Hip rotation is just one component of a larger movement, and in reality, the head, shoulders, and hips all turn. The reason people often focus on the hips is that they serve as the dividing line between the upper and lower body.

When making a small turn, the upper body remains still, and the turn is accomplished mainly by the lower body. As long as the upper body stays stable and faces downhill, the body leads the skis during the upper part of the turn. Therefore, small turns also don’t require deliberate hip rotation.

In conclusion, there’s no need to deliberately rotate your hips. Hip rotation is just one component of an overall movement.