Abstract
It is attempted to produce theoretically various skier's posture in the "parallel turn". The skier is modeled by a multibody system and its posture is drawn by using a 3D-CAD system referring to the pictures videotaped on a snow slope. One can understand the skier's ski control reproducing continuously the skier's postures. The position of the skier's center of gravity is estimated considering the mass of each human part. The force acting on the ski from the skier is estimated from the gravity force and inertia force of the skier. The edging angle between ski and snow slope is estimated. Furthermore, a new skier's ski control model is proposed by using the motion of the skier's center of gravity, the force acting to the ski from the skier, and the edging angle.
